How to Unroot Samsung Galaxy S2 i9100

Unrooting is the process of turning back a device, whether it may be a Smartphone or a Tablet, back to its original stock official firmware. Unrooting is useful especially when it comes to warranty issues such as defective hardware. Service Centers wouldn’t cater customers who have rooted devices as the customer would have violated the warranty agreement. Okay, don’t panic if you’ve got a rooted device. It’s basic and effortless in unrooting a devie.

Note: This guide is intended for the Samsung Galaxy S2 i9100, the international unlocked version and not the AT&T, Verizon or T-Mobile versions.

Requirements:

Guide:

  1. Download Odin 1.85 and Samsung Kies. Once done, head over here to download your country’s official Samsung Galaxy S2 i9100 firmware. Moreover, if your Smartphone came locked on a specific network carrier you can find it from the list too. Alternatively, you can download the Polish firmware as it’s updated. Don’t forget to extract the contents of the zip file to a folder. If you’re from the Philippines, you can download the official ICS Firmware (I9100DXLP7_I9100OLBLP7_XTC).
  2. Switch off your Samsung Galaxy S2 and put it in Download Mode by pressing Volume Down + Menu Button + Power Button.
  3. Connect your Galaxy S2 to your computer with the Micro-USB cable. Press the Volume Up button to enter Download Mode.
  4. Run Odin, click on PDA and look for the extracted folder of the official stock firmware. We’re looking for a particular filename with the following format – “I9100DXLP7_I9100OLBLP7_XTC.tar”.
  5. Click Start and give it a few minutes for it to flash the official Samsung stock firmware to your Samsung Galaxy S2. The device would automatically restart too.
  6. If you are coming from a custom ROM or Kernel it would usually get stuck at the Samsung boot screen. This is normal due to platform issues. Nevertheless, remove the battery from the Galaxy S2 and disconnect all cables. Insert the battery back in and instead of turning it on, access Recovery Mode by pressing Volume Up + Menu Button + Power Button for 10 seconds. The screen would flash twice.
  7. Once in Recovery Mode, do a Wipe Data/Factory Reset and Wipe Cache Partition. Lastly, reboot your phone and everything should be in working order.

Good Luck!

If you got yourself into a problem, feel free to ask below. If you are a little bit hesitant to the above process, ask your questions below. I’ll be more than happy to answer them.

  • Darren

    how to know my s2 i9100 is international unlock version?
    I am from malaysia and i would like to unroot my s2.

    Furthermore, the camera on my s2 is very slow. When i take picture, it takes 3 seconds to take it after i touch the button. Is it because i have rooted it?

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      You can check if your phone is locked or unlocked by typing this in your phonepad – *#SIMLOCK#

      And it can be that the Kernel used to Root your phone might be slowing your Camera App down.

      • Darren

        Erm. Means *#7465625#?? I tried on my note but no response. my s2 is now with my friend so i cant try.

        the kernel can be changed or not? I was hoping my s2 would be fast and silky smooth as brand new as i prefer s2 than note.

  • Aaron

    i just rooted my phone, but im unable to boot it up after i rooted it even though it said it was successful, it boots up shows me the samsung gt-i9100 and the yellow triangle icon, before turning into a black screen, how can i get my phone to work again?

  • fayazuddin

    Thanks but in download mode if i connect to download mode in odin can’t connect my galaxy s2 need help plz leave a comment

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Do you have the Samsung Kies installed? It might be a driver issue.

  • Quinston Wilson

    Hi. Wont i face any problems if i use the polish firmware? Coz im in india… (im an indian)
    This is because india hasnt got the jellybean update yet.

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      The Polish Firmware is version 4.0 which is ICS. You can use the XWLSD firmware (Spain’s Firmware) as it is the Jelly Bean version. And no you won’t have any problems whatsoever as long as your phone is a GT-i9100. :)

      • Quinston Wilson

        thnak you:)

        • http://www.wiredmash.com/ Jose Francisco Farrugia

          You’re welcome mate :)

  • Russell

    Thanks! Worked perfectly. I live in India & jellybean hasnt been released here, so now i not only have unrooted my phone, but also have jellybean!! THANK YOU!

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      You’re welcome Russell :)

  • theMEGLET

    Hi,
    I derooted my phone following your instructions, and my phone booted straight into the new stock Samsung firmware without any problems of locking up, even though I was coming from a custom rom. My question is, do I still need to do a Wipe Data/Factory Reset and Wipe Cache Partition procedure, or should it be okay? Thanks.

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      It should be fine if it booted up, however, I do recommend you doing a wipe. It would feel a lot smoother ;)

  • Robbie Allday

    why does it stop me at this command? ‘ Can’t open the serial(COM) port.

    All threads completed. (succeed 0 / failed 1)

    Can’t open the serial(COM) port.

    All threads completed. (succeed 0 / failed 1)’ what am i doing wrong? please help

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Looks like there’s some sort of communication issues between your phone and your computer. Try reinstalling Samsung Kies. If that doesn’t work try a new micro-USB Cable. If it still doesn’t work try it on another computer. Let me know how it goes.

  • Zues

    What exactly are the advantages of unrooting? Is this the equivalent to “jailbreak”?

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Unrooting an Android Smartphone will bring you back to the stock firmware or original software that came with the phone. For instance, if you unroot a Samsung Galaxy S2 you will be presented with the original TouchWiz user interface.

      On the other hand, Rooting, gives you full administrator rights and privileges to your phone, thus, allowing you to download and flash Custom ROMs (Different OS) and tweak the performance of your Smartphone.

      Jailbreaking is somewhat similar, however, you won’t be able to download Free Apps from the Google Play Store.

  • Zac

    I just rooted and now i don’t have 3G D:
    I want to unroot my samsung galaxy s2 to see if 3G will work again.
    Does it matter which country firmware you use? (i live in brunei)

  • http://www.facebook.com/rlcerbas Ryan L. Cerbas

    Good day sir, I am Ryan from Iloilo city, Philippines.. Can i use the Polish version? but i am worried if it will lock my phone? and cannot use the networks here in Philippines.

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Ryan. Which 4.1.2 Firmware build are you using? Is it the XWLSJ Build? Anyway, I suggest you stick to the 4.1.2 version. It’s a lot more smoother and faster compared to ICS. On another note, you could have downloaded an App from the Play Store to generate you the unlock code.

      If you want a male voice you can download other Android Apps which do the same thing such as – https://play.google.com/store/apps/details?id=com.ivona.tts&hl=en

      Just search for Text to Speech in the Google Play Store :) Let me know how it goes.

  • basil azeez

    can it be unrooted if i upgrade it? the version at the present state is 2.3.5
    and i didn’t understand any of that above.and i am from india.
    i am having a GT-1900

  • basil azeez

    can i change the firmware to the one in india it is now in india and i bought it from UNITED ARAB EMIRATES my phone is GT-1900
    samsung galaxy S2

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Yep, check out my reply in your previous comment.

  • Jay

    Hi,
    i am having trouble with my rooted SGs2 i followed your steps on how to root it, when i play a video or while taking a picture the screen is black
    but when i take pictures when i look at the gallery the picture can be seen
    and when i watch a video when i touch the screen a small part of the video is seen but there is sound…i dont like to unroot it ..is unrooting the solution for my problem..if it is ,is there any other solutions?btw my phone’s android version is ics 4.0.4 my baseband version:I9100XXLQ6 and i’m from phil. please help/reply
    ,thanks

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Jay. It might be a problem with the firmware itself. The only way to solve this issue is to unroot it with the Philippine Firmware. You can download the ICS Firmware for the Philippines above.

      On another note, why don’t you upgrade to Jelly Bean. Check this guide out -http://www.wiredmash.com/samsung-galaxy-s2-i9100-jelly-bean-4-1-2-xwlsj-firmware-march-2013/ You can root it too, but with a different file.

      • Jay

        Thanks i already fixed it i upgraded to official firmware jellybean 4.1.2 with odin and its already unrooted now nothing is wrong with it , thanks=))

  • sanchez

    bloody helll man… you should warn people at the start of the tutorial and the video that this will delete all data and messages and stuff and we should do a backup… not at the very end when we’ve done everything and you say this means we’ve lost everything.. !!

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hey Sanchez. I am sorry to hear that.

      When unrooting your phone from the Official Samsung Firmware, one doesn’t need to wipe partition or wipe cache. However, if you are coming from a different ROM (ex. Vanilla RootBOX ROM) you have no choice but to reset your phone (Wipe Partition and Wipe Cache).

  • Darren

    i downloaded a file but it is not in .tar format. it is .tar.md5
    How?

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      That’s the right file. The extension .md5 is just a way to check if the file .tar was corrupted or not. Flash the .tar.md5 :)

  • 283

    what if i run odin but no yellow in first column like you do?

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      COM should appear. Have you tried reinstalling Samsung Kies? It might be a driver issue.

      • 283

        now i have 4 yellow column how?? ZZzzzz

        • http://www.wiredmash.com/ Jose Francisco Farrugia

          Try flashing it now. :)

  • hudson

    After I had unrooted my device with your steps provided, I use the Polish firmware, it shows that the android.process.acore has stopped. Why?

  • Arpit Desai

    Hi, I have followed all your instructions, but while booting the phone is struck on the galaxy s2 logo and not going further. I shut it down and again booted it, but the same is happening. Please help.

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Arpit. I suggest you go to Recovery Mode by pressing (Volume Up + Home Button + Power Button for 10 seconds) and do a Wipe Partition and Wipe Cache. And Reboot :)

      • Abhishek

        i have the same problem.i rooted my galaxy s2 i9100 running on jb 4.1 in the morning and then after a while of working good it unexpectedly started rebooting so i did a factory reset at night and when i reached the welcome screen it turned off unexpectedly and then got stuck at the samsung logo. i again did a factory reset but still i get to wecome screen, phone automatically restarts and then gets stuck at the samsung logo.
        please help!!!urgent.

  • Joseph

    Hello po,
    I bought my samsung galaxy s2 not from samsung here in phils ..and no ntsc sticker so that means I have no warranty …..if my s2 is rooted …..other than voiding the warranty is there other things not good about rooted s2 for ex. battery shortage etc.? Tnx po . Hope you reply.

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Joseph. Of course I’ll reply ;) I reply to most comments on my blog. Nevertheless, there is no such thing as battery shortage on a rooted device. With a rooted device you can install custom ROMs (customized versions of Android). :) You don’t need to worry about unrooting the device. It’s pretty simple as stated above with my guidelines.

      Let me know if you have any more questions. :)

  • Gumz

    Hi. Will this remove the triangle which appears when starting the phone?

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      It will definitely do, however, your device won’t be rooted anymore. If you just want to remove the triangle and keep your device rooted I suggest you search for an App called Triangle Away :)

      • Gumz

        I have followed your instructions, but after I click on start nothing happens. Any suggestions?

        • http://www.wiredmash.com/ Jose Francisco Farrugia

          Do you have Samsung Kies installed? And what do you mean nothing happens? Are there any error messages?

  • elena15

    hey..i’ve tried to root my phone by following your instructions in another video but when i tried to reboot the phone stuck on a yellow triangle and won’t open. Do you thing that if i unroot it, it will be fine?and there is any chance that i’ll loose my data,pictures,contacts etc?

  • Henrik

    My phone is also stuck on the galaxy s2 logo I try to go to recovery mode but I can´t.. I can only go to download mode or Watch the sgs2 logo.. please help!

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Henrik. I just replied to your YouTube comment. Have you tried accessing Recovery Mode by switching your phone then pressing Volume Up + Home Button + Power Button for 10 seconds?

  • Nadia

    Hi i recently updates my phone to jellybean today and my 3G is not working at all i have no idea how to fix it would you be able to help me please ?

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Nadia. Have you tried restarting your phone? It usually does the trick. If that doesn’t work you can always do a factory reset. :)

  • Josef

    Thanks a lot man. You are awesome. The firmware is clean. Now I have a brand new phone.

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      High Five :)

      • Faradin

        Hello, could you please suggest me how, I can switch between one custom ROM to another.

        Currently I rooted my Galaxy S2 (Jelly Beam) phone successfully following your method. Now I am running Avatar CyanogenMod 10.1 for Jelly Beam 4.2.2. I am not sure which custom ROM would be best for me and so I want to switch to check other out. Of course I will appreciate your suggestion on this issue.

        If you have a video tutorial for the same I would love to have its link.

        Thank you

        • http://www.wiredmash.com/ Jose Francisco Farrugia

          Hi Faradin. :) There’s a particular Kernel which allows Dual Booting, however, I have yet to explore that method. It might become a bit messy. Nevertheless, I suggest you play around with the Vanilla RootBOX Rom. Have you tried that yet? :)

  • Aivaras

    Hi there i unrooted my samsung s2 and updated 4.1.2
    and now i have sim unlocked what to do i dont have ideas

  • andriodfan

    i followed your instructions. But after flashing the official firmware turn over to mute option is not working. How do i fix it?

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi there. Have you tried doing a factory reset? It usually does the trick. :)

  • http://www.facebook.com/singavarma Singa Varma MV

    thanku very much it worked for me..

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      You’re welcome Singa :)

  • Sajan

    Hey man, My s2 was locked before to orange network. So i took it to the shop to unlock it, but I think they rooted it. So i followed your instruction to unroot it. Everything went as it should, but when I open my phone with different sim (not orange) it still opens and works. And even after unrooting i still have all my texts and apps, plus the SUPERSU thing is still there. Whats going on here?

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      That’s strange. Have you considered rooting the latest XWLSN Jelly Bean Firmware from Samsung? – http://www.wiredmash.com/samsung-galaxy-s2-i9100-android-4-1-2-xwlsn-firmware-april-2013/

      • Sajan

        I mean, Its working fine for me. The only problem is that i am not able to use mobile data right now. And I dont really want to root my phone. And when i go on the about phone section it still says orange as the network.

        • http://www.wiredmash.com/ Jose Francisco Farrugia

          I apologize for using the wrong terminology in my previous comment. I meant to say flashing. Why don’t you flash the latest XWLSN Jelly Bean Firmware? :)

          • sajan

            umm.. yeh i could do that. But i think orange are releasing it soon, i will wait few more days and if not i will consider this. Thanks for you help anyway!

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            Anytime Sajan :)

          • Sajan

            Hey man I have had enough waiting i dont think orange will release JB soon. I was just wondering will it be ok for me to flash my brand locked phone, even tho my network provider haven’t released the jb rom yet. And if it is fine, which Jelly bean rom do i use to flash my s2 with.

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            Hi Sajan. You’ve got a Samsung Galaxy S2 GT-i9100, right? Then it shouldn’t be a problem, however, you might experience some lock issues. You can root your phone (I suggest the Siyah Kernel for Jelly Bean – http://www.wiredmash.com/how-to-root-samsung-galaxy-s2-i9100-jelly-bean-4-1-2/ ) then you can download Galaxy SIM unlock from the Play Store if your phone ever gets locked. :) Let me know how it goes.

          • Sajan

            Orange released JB few days ago. I just used kies to update it. Thanks for the help man.

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            Hi Sajan. That’s great news! Hopefully it will slowly roll out to all the network carriers. Thanks for the heads up :)

  • tony

    10x man…….

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Anytime :)

  • Ian Villarino

    hello . after i upgrade my samsung i9100 the phone works good but my wifi mac addrees is unavailable, can u help me?

  • koshi

    Hi Jose, after rooting im getting like this error when I switch on the g2 ” Unfortunately, the process com. android. phone has stopped” What shall I do now? thanks

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      What version of Android did you have prior to rooting? :)

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      I suggest you backup your data and do a Factory Reset, it would mostly likely resolve the issue :)

      • saji de vass

        yes I did. still I cant use motion ( turn over to mute)? please help…

        • http://www.wiredmash.com/ Jose Francisco Farrugia

          I just tried it on my phone. If someone calls you and if I turn it over it works. However, if I leave it face down and if someone calls it’s not muted. Is that what you’re experiencing too?

          • saji de vass

            Hi Jose, Its work fine now i wiped cache and did a factory reset, but now im having a another issue, I dont get strong wifi signals… I do have a S3 phone as well that phone does but not S2. Is there a anyway that we can improve wifi signals? thanks bro.

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            It might be a router issue. Try checking out your WiFi Router settings. I had an issue before where my HTC 8X wouldn’t connect to my WiFi Router due to a certain setting I left on my WiFi Router (I disable PIN Security).

          • sajith

            Thanks Jose, doesn’t work. do you think its a good idea if I root my phone back to Ice cream sandwitch ( original Samsung galaxy s2) If yes could you please advice me how to do? cheers bro..

          • saji de vass

            Hi Jose, although I can connect occasionally, but quite frequently it drops out saying “authentication error occurred” what do you think? can I reroot my phone back to Ice cream sandwitch?

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            Sounds like a WiFi Router issue. Resetting your phone should have done the trick. Check these forum threads which I found – http://thedailybuggle.com/forum/samsung-galaxy-s2-not-connecting-wi-fi-after-update-12154.html and http://www.galaxyforums.net/forum/galaxy-s2-help/6604-authentication-error-occurred-repeatedly-3.html

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            Hi Sajith. It would be a pity if you return back to ICS :( Nevertheless, head over to http://www.sammobile.com/firmwares and do a search for i9100. Look for the country or region closes to use and select the 4.0 version of Android. Follow the same guide as above. Once you’re done flashing ICS, follow this rooting guide – http://www.wiredmash.com/how-to-root-samsung-galaxy-s2-i9100/

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Or you can try this before doing a factory reset -

      Settings > Apps > All > Phone and select the “Force stop” and then “Clear data”

      • koshi

        Thanks Jose, your a gem.. its work for me. now i cant do screen lock and motion ( turn over to mute.pause) how do I fix this? thanks bro..

        • http://www.wiredmash.com/ Jose Francisco Farrugia

          Hi Koshi. Why don’t you try doing a factory reset? It might solve all outstanding issues? What do you think? :)

  • http://www.facebook.com/robert.korhonen.3 Robert Korhonen

    Thanks a lot dude! :) You just earned ”like” to this video

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Thank you for your support Robert :)

  • Semmihh Yaggli

    Hi, I am using Cyanogen mod 9 with siyah kernel. should I start with wiping partition and cache before starting all these or should I do this at the very end as you instructed (when I get stuck at the booting) or should I do both ? Which one do you suggest. Thank you very much

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi there. You should do it at the end :)

      • Semmihh Yaggli

        thanks a lot man. Your method works like a charm :) You earned yourself a thumbs up :)

        • http://www.wiredmash.com/ Jose Francisco Farrugia

          You’re welcome. High five! :)

  • yuri

    i love you

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      I love you too.

  • Ryo

    worksssss :x

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Awesome! High Five!

  • Doug

    Works for me, although I can’t find the correct firmware. I’m on Virgin in the UK, but installed firmware from 3 network. also, kies won’t let you update through it. any ideas?

  • Ope

    Hi my name is Ope. I have a problem with my galaxy s2. Anytime i try to send or recieve a file through my bluetooth my phone keeps restarting. Av tried a soft reset, the problem disappear for a while and later it starts again. My android version is 4.0.3. Thanks

  • http://www.facebook.com/timothy.garcia.359126 Timothy Gomez

    hi, guys any body can help me? 1st i up grade my s2 gt I9100 to jelly bean 4.1.2 and its working very well.then there’s a update. i didn’t update it.then i download titanium back up pro, that requires to root the phone.so i root it.. and i made it. then i suddenly update the phone.its “rooted” when i update… then it didnt up date instead. the phone is one the galaxy SII gt I9100 screen and theres a yellow triangle inside on it theres a exclamation point. i had no idea whats going on. cause when i update it says that do not turn off the phone, u cant call or even emergency call.then it it start loading at the main screen at the Samsung SII GT-i9100 screen with the yellow triangle. and from there i cant open it. or even restarting it. also even if i press and hold the “volume up+main botton+power. it wont go to next set up where you can format the phone. am so lost. any one has an idea or same as my problem pls help me…

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Timothy. Have you tried re flashing your phone with the latest XWLSN Firmware – http://www.wiredmash.com/samsung-galaxy-s2-i9100-android-4-1-2-xwlsn-firmware-april-2013/

      Once you’re done flashing that, Root your phone with the Siyah Kernel – http://www.wiredmash.com/how-to-root-samsung-galaxy-s2-i9100-jelly-bean-4-1-2/

      • http://www.facebook.com/timothy.garcia.359126 Timothy Gomez

        thank you sir JOSE, okay na phone ko. ang phone ko naun is jelly bean 4.1.2 rooted “daw” kapag nakita ung “su app super app” and ung “cwm” so meron ako ng mga ito so it means rooted ako? and ung bago is siyah kernel 3.0.31 siyah-s2-v6.ob+ gm@ubuntu #177 SMP PREMEMPT mon Feb 18:16:38:28 PST 2013 tapos baseband version:I9100XXLS8 Build number:JZO54k. I900XWLS8 yan info ng phone ko ngaun. and my nadag dag na icon ng naging siyah kernel is ung “CWM” “STweaks” any help pa po sir jose if ever… okay na po ba ito, or need ko pa i reboot ulit or boot? ano po ba gagawin ko… okay na po ba ito ??? msg me back sir thanks alot for the help and guide i made it back again android is alive, ^_^ i thought i brick it wew atleast now i know ^_^ thanks alot sir

        • http://www.wiredmash.com/ Jose Francisco Farrugia

          Hey Timothy. Looks like everything is working fine especially with regards to the Kernel. :) Let me know if you run into another issue :)

          • http://www.facebook.com/timothy.garcia.359126 Timothy Gomez

            jose the problem is there is a yellow triangle or should i say caution icon. how can i remove it. and after i boot it with your file u send me its okay now, i can use it but! in the starting point or boot it takes 2 to boot the phone and same still there is the yellow triangle or caution sign. and there before the phone starts. theres the siyah kernal logo looks like eye with a yin yang.and a violet color. dont know if am right the description you know this is only for what i see in my phone now. can u give me idea how to remove the caution or the yellow triangle and also to make the boot faster or just one boot. any idea…and another thing, if the phone is rooted is it true that you cant see the status device… cause at the lower part all i can see is bluetooth and uptime only the status device has gone. so it means thats rooted or what? how can i see the device status… thank jose and sorry for my english ^_^

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            Hey Timothy. You don’t need to worry about the yellow triangle as that signifies that your device is rooted. If you want to remove you can purchase a USB Jig which a small USB cable that removes the triangle. If I were you leave it the way it is. And you don’t need to worry about your boot up screen of the Siyah Eye ;) Everything is fine.

            What do you mean by the status of the device? Where are you seeing this information?

          • http://www.facebook.com/timothy.garcia.359126 Timothy Gomez

            bro another thing i install the chain fire 3d pro 3.3 and install it and my bad. i didn’t notice before it boot. it might fail. and still i continued. then after reboot am stock on the siyah kernel logo i cant go in. pls help what should i do. and from now on i will not install street fighter IV thats the reason why i got many problem sorry bro for bothering you again. i need your help this time. do i need to install again the siyah kernel you send just to access my phone again. help me plsss….

          • http://www.facebook.com/timothy.garcia.359126 Timothy Gomez

            ive try this step i redo the same step u told me the siyah kernel i open odin 3.07 then after it boot and pass. the yellow triangle is gone. and the siyah kernel too. but i check my device about phone all is written there is this android ver. 4.1.2 still jellybean. baseband version I9100XXMS2
            kernel version 3.0.31-1069234 dpi@DELL237#3 SMP PREEMPT tue mar 19 19:18 54 KST 2013
            build number JZO54K.I9100XWLSN thats all in my about device? do u see something wrong here? msg me ok… and after i make it again. when i try wifi there a update… should i update it or not… also i forgot to tell you the root has gone super user and cws and tweaks are gone.this ups are lost after i try reinstalling the siyah kernel u told me. now i can use my phone again. but i dont know if i should i update or just ignore it. let me know what are the next step ok sir… thank you

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            Try updating your phone. I believe that’s the XWLSS Firmware, one of the latest builds from Samsung :)

          • http://www.facebook.com/timothy.garcia.359126 Timothy Gomez

            what if i update and it stock up? or hung or block. am affraid thats why i didnt update i ignore… the yellow triangle has gone now. and the root is gone. no more cws no more super use.and no more kernel siyah on my phone. do read and see my post awhile ago. about my device phone? those are my info now. when u check about device. you sure i need to update?

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            You don’t need to worry if your phone gets stuck (let’s hope it wont though) as you can easily flash the Official Samsung XWLSS Firmware via Odin ;) Go ahead and update your phone. I suggest you do.

            And once you install the Official Samsung Firmware, your rooting privileges are taken away. You can root your phone again by following the Siyah Kernel :)

          • http://www.facebook.com/timothy.garcia.359126 Timothy Gomez

            thanks alot. but for now i dont want to root.the only reason why i want to root my phone jose is because for titanium back up pro, and to INSTALL STREET FIGHTER IV but since i can make. or should i say i cant install it properly and make my phone worst i wont install it. unless from u. cause i trust u bro. if ull teach me how 2 install it ill follow ur guide cause u help me alot super thank you. my phone now is 4.1.2 jellybean and no more siyah kernel looks like its back to original settings. thanks alot, bydway if u know or if u have idea on street fighter IV to install on jellybean 4.1.2 let me know bro. thnx alot ^_^ i will follow your steps again u help me alot more power JOSE….

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            Where did you download Street Fighter from? Did you get it from the Google Play Store? ;)

          • http://www.facebook.com/timothy.garcia.359126 Timothy Gomez

            not in google play store only in net. mob.org they give apk file there. and also in google many site is giving apk file and cache for street fighter.. i really want that game but i dont know if it will work on my phone,

          • http://www.facebook.com/timothy.garcia.359126 Timothy Gomez

            jose i got problem here… 1st when i insert a sim card on my phone.phone it self doesnt read that there’s a simcard then my friend restart it and still it doesnt read the sim. so he did is reboot the phone. and now my phone hungs up in the title screen samsung galaxy SII GT-I9100 and from there what i did is reflash the firmware you send but still am stock up on the main screen samsung galaxy SII GT-I9100 now i dont know what to do.. do u have any idea about this? u cant use my phone now sad to say T_T

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            Hey Timothy. Which main screen are you talking about? Did you get pass the boot up screen? Is your SIM being read already?

          • http://www.facebook.com/timothy.garcia.359126 Timothy Gomez

            yes ive pass it bro. but am still afraid of software update. cause when you update it it will automatically turn off your phone. and it says you cant call and pls dont turn of the phone. so again it will restart automatically and here’s the point how will the phone be updated that software, cause it self the phone is being restart. the phone is on the downlowding point and the phone is not downlowding. from there. nothing happens. no software update. it will took until u have battery. untill it drops to zero batt. and still nothing happens. no software update. and still your phone will be stock up and u cant oppen. the yellow triangle will appear thats why i cant update the software update. jose do u encounter this problem? do i really need to update the software? of samsung galaxy s2???

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            I suggest you update your Samsung Galaxy S2 via Samsung Kies in Windows rather than OTA.

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            So it’s one of those pirated games huh ;) I think Street Fighter should be able to work on the Samsung Galaxy S2. Have you tried checking out YouTube for some video guides there?

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            Try installing the Siyah Kernel again. It that doesn’t work flash the latest XWLSN Firmware – http://www.wiredmash.com/samsung-galaxy-s2-jelly-bean-4-1-2-xwlsn-firmware-review/

  • Vijay Kumar

    step5 is failed
    FAIL!(red) in odin
    wat to do now????

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Have you tried changing your micro-usb cable? :)

  • paul

    sir, ask ko lang po, i’m using a samsung stock jelly bean rom xxlsj and 3.0.31 siyah kernel on my galaxy s2 local version, the problem is i’m experiencing large battery drainage on this kernel, is there any best setting for sTweaks, para ma maximize ko yung battery life ng galaxy s2 ko? thanks and more power

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Definitely XWLSJ is probably the worst Samsung Galaxy S2 Jelly Bean Firmware due to the battery leak. I suggest you flash the DXLS8 Firmware for the Philippines. Check out http://www.sammobile.com/firmwares

      Let me know how it goes :)

  • shifee

    Can i install this on my rooted phone without unrooting?

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      You mean the Official Samsung Firmware? Once you flash Samsung’s Firmware your phone will automatically be unrooted, however, if you’re a fan of Samsung’s Firmware and you still want your phone to be rooted you can check out NeatROM Lite – http://www.wiredmash.com/neatrom-lite-review-for-the-samsung-galaxy-s2/

  • harshdeep

    hi.
    can i use firmware from some other country to unroot my device????

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Sure why not ;) As long as you got the GT-i9100, the international variant.

  • Vishnu gopal

    Hello :) im running my s2 in xwlst and its orginal INU. Suppose I root my phone and afterwards if I load ur official firmware to unroot will the phone be back to original I.e can I get updates from samsung kies?

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Vishnu. I suggest you look for the latest firmware for your country, I believe it’s the XWLST, the same one you mentioned. You can look for your firmware at http://www.sammobile.com/firmwares You can use that official firmware to unroot your phone :) The firmware in the guide above is a Ice Cream Sandwich (4.0) version. Quite outdated.

      • Vishnu gopal

        Few more doubts :) Can I load other countries firmwares? So that I can go from 4.1.2 to 2.3.6?

        • http://www.wiredmash.com/ Jose Francisco Farrugia

          Sure but I wouldn’t understand why you want to be on Gingerbread ;) Now that’s quite outdated. Anyway, I suggest you use your country’s 2.3.6 firmware instead of another country’s ;)

  • gazza

    Hello,
    I live in Finland, my daughters phone was on the verge of being thown away, it had the stuck on the Galaxy S2 logo problem eveytime it was rebooted, tried to install Jellybean using Kies but message came back Device Not Supported,
    I then tried your unrooting procedure explained here somewhat sceptical, a few problems but at the end of the process the phone is now up and running with the Polish firmware,
    Many thanks, 5 Stars

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Gazza. Glad you managed to fix your daughters phone. You’re welcome mate. :)

  • vikram

    hi i am a very peculiar problem with my phone i bought the phone in china 10 months ago when i came to my home in India last year it worked fine and during that time it was on gingerbread but then i went back and got it updated to ICS and it worked fine there in china but now that i am back in India for good the phone is unable to register itself on home network and weirdly thought the data connection is working fine. should i first get the hardware check and then go for some software change or is it the problem of ROM

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Vikram. Try checking if it can be upgraded again via Samsung Kies – http://www.samsung.com/us/kies/‎ It might be that your Galaxy S2 is locked with a certain Chinese Network Carrier. Nonetheless, try checking if there any updates via Samsung Kies first. Let me know how it goes :)

  • Manuel

    Greetings!

    I live in Paraguay. I installed Siyah kernel in my S2. It blocked my videocamera, the home button didn’t work anymore, and my cell phone had to be rebooted several times. I’d never reccomend anyone to root their phone!

    Your method worked like a charm, and once again I have a factory phone. Thank you thank you!

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Ola Manuel. That’s strange. It should work on any GT-i9100 variant. Is your phone locked to a particular network in Paraguay?

  • Stella Serania

    Hi
    tried this procedure and it failed in ODIN.
    already used two micro-usb cable

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Stella. Have you tried using Odin 1.85? :) Let me know how it goes.

      • Stella Serania

        Yup. Used the link you provided. Still failed though. What else can I do?

        • http://www.wiredmash.com/ Jose Francisco Farrugia

          Stella, try Odin 3.07 :)

  • Keyur Pandya

    hey wiredmash …look i got problem…I have installed SLIM BEAN rom on my s2////and i wanna get rid of yellow triangle ..i did tried USB JIG and ROOT TRIANGLE AWAY APP…no stuff worked now?…

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Keyur. Well, those are the only two possible methods I recommend. You can try asking around at the XDA-Developers Forum. The USB Jig should have removed the Triangle. If the triangle doesn’t bother you, just leave it there :)

  • topek

    hello..im from malaysia..my samsung cannot connect to wifi when im update to jelly bean 4.1.2..when im try to connect the wifi,jus show up the coment “authentication error occurred”..my samsung model i9100g..what going on?i try to fix many time,but still dont get the solution..please help me..

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Topek. Have you tried updating it via Samsung Kies on your desktop computer?

  • Laddi dhillon

    PLEASE HELP ME

    I WATCHED YOUR JELLY BEAN UPDATE WIth ODIN TUTORIAL ………

    BUT WHEN I START ODIN PROCESS IT WAS NOT SHOWING BOOT process ………..AFTER waiting for 10 MINS. I REMOVED THE CABLE AND BATTERY ALSO.BUT WHEN I TURNED IT ON AGAIN IT WAS SHOWING SOFTWARE UPDATE FAIL…………..THIS IS MY 2ND DAY AFTER THAT UPDATE FAIL…..NOW ALSO IT WAS SHOWING SOFWARE UPDATE FAIL ON MAIN SCREEN……..PLS HELP ME!!

  • Laddi dhillon

    this is what it was showing from 2 days nothing happened after that………

  • Aditya Kondramutla

    Hello

    I have Samsung Galaxy S2 and i am trying to update it new version and it was failed. After that i was not able to switch on my mobile and stuck up with boot screen.Even volume down + menu + power button was not working….i am really worried…want i need to do now???????
    i hope u will help me in this….waiting for your reply….

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Aditya. Have you tried removing and placing the battery back in? Before turning on press the Volume Down + Home Button + Power Button for 10 seconds. You should be able to get into Recovery Mode ;)

  • Lucas

    Anyone,plz help me I live in Brazil sorry for my bad english,but ok I want to now is the Polish firmware it can be updated with Kies or I have to download a ROM with the 4.1.2?I do not want to download a ROM,cuz i worked hard to get my games on the higher level(kidding i only hacked them)but please tem me anyone i need help!

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Lucas. Try updating it with the following firmware – http://www.wiredmash.com/samsung-galaxy-s2-jelly-bean-xwlss-firmware-may-2013/

      Let me know how it goes :)

      • Lucas

        Downloading…when its done i tell you

        • Lucas

          it will unroot my s2?

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            Yep it will as long as you got a GT-i9100. I recommend you flash the latest XWLSS Jelly Bean Version instead as it’s a later version than the version posted above – http://www.wiredmash.com/samsung-galaxy-s2-jelly-bean-xwlss-firmware-may-2013/

            Let me know how it goes.

          • Lucas

            Tnxs man…tnks a lot!!=)=)

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            You’re welcome Lucas. :)

          • Lucas

            im getting an error,on the 2 odins (1.85 and 3.07)it fails

          • http://www.wiredmash.com/ Jose Francisco Farrugia

            Have you tried changing your USB cable? What’s the error?

  • ernz

    Hi there. I recently just rooted my phone. But it got bricked after trying to get worldclockmod or smtg. So i followed a youtube video to unroot it. It did unroot it but it was stuck at th logo screen. I then proceed to wipe out my phone and it finally booted up. But now, i wanna update it back to jellybean, which i did before rooting. The problem is kies said that my current firmware is not supported. :( How? Thanks wiredmash!

  • Navaja

    How to unroot Galaxy S2 I9100 to Jelly Bean 4.1.

  • Mohsin

    Hello wiredmash,
    i live saudi arabia, so can i get the method of unrooting galaxy s2 gt-i9100
    sorry for my bad english. plz i need ur help

    • Mohsin

      And one more question what is the difference between XXLS8 and all

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Yep, it should work. Any Official Samsung Firmware should work flawlessly on your GT-i9100.

  • Anjo

    Hi.. Thank you for this tutorial.. I managed to do exactly as you said and Successful in the process.
    I just want to ask is it possible to update your phone thru Samsung Kies Air after doing this? Because when i tried to update it there is an error that device not supported. when i tried it manually it shows no updates available.. please help..

    • http://www.wiredmash.com/ Jose Francisco Farrugia

      Hi Anjo. Sometimes it works, sometimes it doesn’t. If it doesn’t work, you got to download your country’s firmware for it to be updated via Samsung Kies. Check out http://www.sammobile.com/firmwares

  • farshad

    hello how to unroot samsung galaxy s2 ? i have siyah karnel! please help me i dont want my phone rooted!

  • Gys

    hi i live in south africa and i cant find the oficial firmware will the pollish firmware work ?

  • Chin Chee Fung

    Hi,nice to meet you.
    I am from Malaysia,i wanna ask why does my Samsung Galaxy S2 had rooted but it cant on back,i just lag at the first start.i had format it but still cant open,can you tell me how to open it back.

  • ikm

    thank you soo much! you really saved my ass

  • Azlina

    Hi Jose !!
    I’m from Singapore and it works for me.. yeah many Thanks!!

  • chicagochoice

    im looking for the usa firmware region… help me

  • Abhishek Prasad

    I purchased a Galaxy S2 from online site, but it is a Korean Import with Ginger Bread 2.3.4. While i am connecting for update (Via Wifi,Mobile data, or samsung kies) handset is displaying “no update available”. would the above process will work for my handset.

  • gamewornjersey

    Will this method work to unroot if OmniRom was used? I don’t want to make an annoying situation worse than it already is. Thanks!

  • aniket

    hey dude!!! when i click pda in odin.after that to select firmware no files shows whch i hav downloaded from ur link..
    please help me out with that
    thank you

  • Oddi

    for me it says unknow device and i have kies installed

  • Michael Ellis

    is there anny other place i can get the firmwear for my s2 ? all the links on your site is no good .