Official Samsung Jelly Bean 4.1.2 for the Samsung Galaxy S2 i9100

UPDATED: March 2013 Firmware Update – Jelly Bean 4.1.2 for Samsung Galaxy S2 i9100 (XWLSJ)

The Samsung Galaxy S2 has been around for two years already and it has been updated from Gingerbread to Ice Cream Sandwich early 2012. A few months after, Google released their latest sweet, Jelly Bean. Samsung later promised that the Galaxy S2 will be updated to Jelly Bean without giving an exact date on the release. There was a leaked build of Jelly Bean firmware floating around, however, a number of bugs accompanied with it.

A week ago, Samsung officially released the Jelly Bean (4.1.2) Firmware for the Galaxy S2 i9100 (International Version) to two selected countries, Spain and China. Both firmwares are compatible to most i9100 devices, thus, if you purchased an unlocked Galaxy S2 i9100 from another country it would work flawlessly with Spain’s Jelly Bean firmware.

What’s New:

New Battery Percentage of Samsung Galaxy S2 - Official Jelly Bean Firmware

New Battery Percentage of Samsung Galaxy S2 – Official Jelly Bean Firmware

  • Updated TouchWiz User Interface – Similar to Galaxy S3 and Note 2 (Smoother Transitions – Project Butter)
  • Added Battery Percentage at Notifications Bar
  • Added Smart Stay
  • Improved Lock Screen – Custom Apps, Weather and News Stream
  • New Galaxy S3 and Note 2 Widgets
  • Added Notification Settings Shortcut Drawer

Prior to using the Official Firmware from Samsung, I was using several custom ROMs and Kernels including Cyanogenmod 10 and SuperNexus. The battrey life on some ROMs were horrific only lasting a few hours, however, with the official firmware I seem to have noticed better battery life especially when I am using it over WiFi and Cellular Data.

Official Samsung Jelly Bean (4.1.2) for the Samsung Galaxy S2 i9100

Official Samsung Jelly Bean (4.1.2) for the Samsung Galaxy S2 i9100

I’ll be using the Official Samsung Jelly Bean Firmware for the next couple of weeks and if I am satisfied with it, I’ll continue using it as my daily driver. I’ll wait for my region’s firmware to come out and that’s when I’ll flash my Galaxy S2 again.

How-to Guide: Update to Jelly Bean 4.12 Firmware on Samsung Galaxy S2 i9100

So you’ve got an aging Samsung Galaxy S2 with Ice Cream Sandwich installed and you can’t wait for the official firmware for your region and country? Here’s a quick guide in obtaining the officially Jelly Bean 4.1.2 Firmware for the Samsung Galaxy S2:

Note: This won’t work on AT&T, T-Mobile, Verizon and Sprint versions of the Samsung Galaxy S2. This works only on the international version.

  1. Download the Spanish Firmware (I9100XWLS8) V 4.1.2 (Jelly Bean) and extract to a folder.
  2. Download Odin and run it. It’s best that you have Samsung Kies already installed as this will provide communication between your Galaxy S2 and your computer.
  3. Power Off your Galaxy S2 i9100 and set it in Download Mode by pressing Volume Down + Menu Button + Power Button for 10 seconds.
  4. Once in Download Mode, connect your Micro-USB cable to your computer and press Volume Up to activate Download Mode. A yellow box will appear in Odin signifying a successful connection.
  5. Click PDA in Odin and find the contents of the I9100XWLS8 zip file you extracted before. We’re looking for the following filename “I9100XWLS8_I9100XXLS8_I9100FOPLS3_HOME.tar“. Press Start.
  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. 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.
Samsung Galaxy S2 with delicious Jelly Bean Firmware

Samsung Galaxy S2 with delicious Jelly Bean Firmware

Do you have plans in flashing your Samsung Galaxcy S2 to the Official Jelly Bean Firmware? Hesistant? Feel free to share your questions below.

  • http://twitter.com/Shreejan123 Shreejan Khanal

    thanks…. i successfully updated to jelly bean and its awesomeeeeee…my phone seems new again..though battery drains a little faster than on ICS. but its not much of a problem comparing to the cool new features of JB 4.1.2

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

      I am glad it was successful. Give it a few days so that the battery can calibrate itself :)

      • http://twitter.com/Shreejan123 Shreejan Khanal

        please help..battery is draining horribly fast…it drains about 30 % overnight..when i see the graph,its constantly reducing…please help ASAP…thanks

        • Rey Kernel

          Try battery saver app from playstore or try to root your GS2 and install advance battery saver app. Good luck.

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

            Hey Rey. Those Battery saving Apps don’t really work from what I read. It’s just a drain on resources. I would always stick to the phone’s “Power Saving” options which come built in.

  • Vikas

    CAN THIS UPDATE WILL WORK IN SAMSUNG INDIA PHONES

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

      Yes, it will work as long as you have an international version of the Samsung Galaxy S2 (i9100).

      • VIKAS

        iT WORKED I INSTALLED AND GOING BUTTER SMOOTH . .

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

          Congratulations! Enjoy :)

          • vikas jain

            but one issue is there the s planer widget is not working as when i activate this wigdet my launcher becomes unresponsive. .plz help

  • faiz

    this update will void my warranty or not??

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

      Well, you can always flash back the original firmware for your region :)

  • somesh

    can i update this firmware on my galaxy s2 i9100m bell

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

      No, this will only work on the international unlocked version of the Galaxy S2.

  • Webse

    Do I need a backup before flash the new version? Or is it the same like an officel update and everything is the same after reboot?
    Do I need rooted rights?
    Plz for answer

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

      Hi There. Before anything else please make sure you are installing it on an unlocked version of the Samsung Galaxy S2 i9100 (Not Verizon, AT&T etc). As a precaution I suggest you backup all your files. If you are coming from the official ICS firmware this will be treated as an update. And no you don’t need your phone to be rooted for this to work.

      • webse

        thx for your fast answer!
        my handy is unlocked so i will do it :-)

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

          Go ahead. Let me know how it goes. :)

          • webse

            Thank you very much! It works! You are a hero!

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

            I am glad my guide was useful :)

  • Chris

    I have a problem please help me now what is the Password for tethering AndroidAP?

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  • Bogdy

    THANKSS

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

      You’re welcome ;)

  • Peter N

    How can I determine if I have an international version of this phone ?. (Australia here).
    I purchased the phone outright, so not on any plan.

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

      Hi Peter. If you purchased the phone not on a carrier plan or from a network, then it should be the international unlocked version. You can further check by typing this in on the phonepad – *#SIMLOCK#

      Everything should be OFF. Let me know if you have any other queries :)

  • http://www.facebook.com/mick.dansen MiCk 少年

    Hello, do you have tutorial or download link Firmware on Samsung Galaxy S2 i9100 G version? Thanks

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

      Hi Mick. Unfortunately not since I don’t own a device myself. I read the Jelly Bean Firmware is already available for the G variant. Check out http://www.sammobile.com

      • http://www.facebook.com/mick.dansen MiCk 少年

        I have problem with my current location(malaysia) on certain apps such as FB,instaplace n etc.

        Is there any fix? Thanks :)

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

          What’s the problem exactly?

          • http://www.facebook.com/mick.dansen MiCk 少年

            My phone gps cant sync my current location which is malaysia map. Its sync on spain maps, which the firmware that i use is spain firmware I9100XWLSD. So is there any solution to sync my gps location to current location?

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

            Whoo. That’s extremely strange. I just tried it and it works flawlessly here. I am assuming your GPS is on and you are outdoors testing it out?

          • http://www.facebook.com/mick.dansen MiCk 少年

            Yup. Turn on, even updating gps with wifi still my location at spain. But it only occur at apps, not at S2 official maps. I re-install the apps and still cant fix.

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

            That’s quite strange. Have you tried changing your location in Settings? If that won’t work try resetting your phone. Let me know.

  • http://www.facebook.com/mick.dansen MiCk 少年

    Hello there.

    I have problem with my current location(malaysia) on certain apps such as FB,instaplace n etc.

    Is there any fix? Thanks :)

  • angelinyou

    Hello, just want to ask, is the international version you are referring also include Philippines?

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

      Yep. :)

      • angelinyou

        Thanks for the info :)

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

          You’re welcome :)

  • Benette Abas

    Hi I’m from Philippines and was able to upgrade my SG2 to jelly bean.. the new user interface is great.. thanks.. but have some problem with the GPS.. any idea how to fix it.. thanks in advance..

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

      Hi Benette. Have you tried restarting your phone? I had a GPS issue in which I restarted my phone and everything worked out fine.

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  • Cazzonga1

    Worked a right treat, however, GPS seems to not work anymore :-/

  • somera

    Hey i was wondering, i bought my galaxy s2 in Thailand and now i moved to Australia can i still update it?

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

      Yes, you can very well update it via Samsung Kies or you can flash it with another country’s firmware as along as you have a Samsung Galaxy S2 GT-i9100 :)

      • somera

        Does the update depend on the mobile network that i’m using or not? (i’m using yes optus in australia)

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

          Nope, however, at times your phone might be locked to a particular carrier. This can be fixed by downloading an App if you ever get prompted to enter a SIM unlock code :)

          • somera

            Thank u so much you’ve been a big help!! Btw i think my phone is unlocked. Thanks again :D

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

            You’re welcome Somera. If your phone is unlocked, the merrier! Good luck! :)

  • Sean

    hey bro! uhm i have samsung galaxy s2 i9100, ICS, rooted, with litening rom, is this applicable for my phone? im afraid i might ruin my phone, but i really want to try upgrading to JB..

  • Christian

    i can’t find Download the Spanish Firmware (I9100XWLS8) in Sammobille please update your blog.

    Thanks

  • jaalaa

    hi everyone. I have galaxy s2 GT-I9100 i have updated jellybean but now my phone is not recognizing sim card. what should i do. pls help me?

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

      Hi There! Is it displaying an error or a message? Where are you located? It might be some modem issues. Have you tried doing a factory reset or Wipe Cache/Wipe Partition (Recovery Mode – Volume Up + Home Button + Power Button)?

  • jdroy57

    have an s2. just updated. no service now. advice?

  • Julius

    hi po! may problema ako sa phone ko nawawala lagi yung signal :(, i mean lagi emergency calls only. how can i fix it?

    • Julius

      oh. sorry , do you speak tagalog or bisaya ? :)

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

        I can understand a little bit of Tagalog, however, I can clearly understand Bisaya. Nevertheless, I understand your question. Have you tried flashing the latest XWLSN Firmware instead – http://www.wiredmash.com/samsung-galaxy-s2-i9100-android-4-1-2-xwlsn-firmware-april-2013/

        • Julius

          salamat kaayo :). i’ll just update my phone if i experience again “emergency calls only”, im currently using I9100DXLPF_I9100OLBLPF_GLB (it says globe firmware when i downloaded it)

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

            Hi Julius. Where did you see that it says Globe Firmware? :)

          • Julius

            Igot it from sammobile.com (actually i got it here http://www.sammobile.com/firmwares/1/) if you will click country there is 4 options for philippines: XTE ,Globe, Smart, Sun. I was curious about that 4 so I just downloaded Globe firmware because my network is globe XD. Ok ra ba ingon ato ako gihimo ?

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

            That’s Ice Cream Sandwich right?

          • Julius

            yup. i also downloaded XTE (2.3.6)

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

            Why don’t you update to the latest XWLSN Jelly Bean Firmware – http://www.wiredmash.com/samsung-galaxy-s2-i9100-android-4-1-2-xwlsn-firmware-april-2013/

          • Julius

            i have no serial number in my phone? is that okay ? how can i fix it?

          • Julius

            i mean, i have my imei number but my phone serial number in setting is 0000000000. is it normal?

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

            You’re not the only experiencing this as several others are having issues with ICS. I believe it’s a bug of some sort. ;) Are you still under warranty?

          • Julius

            thanks :)) . i just updated my phone to XWLSN firmware . i’m checking it if i have issues with the network again before i root it.

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

            Awesome! :)

          • Julius

            what would you suggest? Siyah-s2-v6.0b5-CWM or PhilZ-cwm6-XWLSN-OXX-4.92.3-signed ? and also i’m thinking if vanillarootboxrom or neat rom

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

            Hi Julius. I suggest Siyah Kernel. And I am about to install Neat Rom. I’ll be providing a guide on how to do it shortly :)

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

            Well, it’s not much of a big deal as you still have the serial number on the board of the phone ;)

          • Dhel Capiones

            sir can i ask xwlsn

          • Dhel Capiones

            sir julius yun akin din gusto ko sana i convert sa gt si1900 kc ito is shwm250k skin kya gusto ko e convert.yung tanong ko yung xte openline sa lhat ng network sun,globe,smart? din kpag pinili ko nmn yung GLB globe locked lng sya? di sya pede sa smart and sun sir?

  • http://www.facebook.com/mike.m.choi Mike Choi

    it automatically downloaded/updated itself this morning for me on my GT-i9100 (unlocked, Korean). i was running ICS before (manually updated via ODIN). this time, no ODIN needed, just happened OTA… ICS kept crashing a lot with bad battery life. Let’s see how Jelly Bean fares…

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

      Hi Mike. Cool! Which build version are you running now?

  • http://twitter.com/henahenares Hena Henares

    hi. I have a galaxy s2 from korea. its shw-m250L. I believe its stock rom is ICS, then I updated it to jelly bean. the problem is I rooted it, but I bricked it. when its in ICS, I successfully rooted it, but when I tried it after updating to jellybean, it bricked. its the same process I madde on ics. I think that’s the problem. can you please help me on this.

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

      Hi Hena. Did you convert your SHW-M250L to i9100? Have you tried flashing the latest XWLSN Firmware?

      • http://twitter.com/henahenares Hena Henares

        no..its still m250 when I tried rooting it…

        • http://twitter.com/henahenares Hena Henares

          and by the way,…its dead now… my phone doesn’t even turning on

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

            Well, I wouldn’t recommend flashing a GT-i9100 firmware for your model as there are a few differences. What do you mean it’s dead now? Does your phone try to bootup? Is it stuck at the bootup screen?

  • Naqaxh

    Hi jose francisco… Actually im trying to update my GTI9100 S-II phone to jelly bean 4.1.2 but when i connect wire to my phone in downloading Mode and Hit start then after a minute or a few seconds almost an error is shown at the top left corner of Odin ie; FAIL . instead of PASS
    I tried alot of versions but the same error appears since last 2 weeks..
    I have a mark of ORANGE at the back of my phone..
    Please help me out.. will be waiting for ur response

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

      Hi Naqaxh. Have you tried changing your micro-usb cable?

  • simply

    thank you.. done it successfully!

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

      Great to hear that. Glad you got it working. :)

  • Navaja

    hi I am navaja. i am your s2 fan. i have small problem on my s2. some times my s2 Showing wrong battery stats, after i restart the 4n . again it showing correct battery stats, is this hardware or software problem

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

      Hi Navaja. Might be a software issue. Which firmware are you currently using?

      • Navaja

        thankx for your quick respond. i9100xwlsw

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

          Did you check Samsung Kies for any new firmware updates?

          • Navaja

            yeah. i froget to tell you one think . after i connect to 4n on switch off mode to charger and remove after few second. after that battery meter coming normal stats

          • Navaja

            i am planing to change my battery. wat is your idea

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

            You can try that. They should be affordable. Try getting the 2000mAH battery :)

          • Navaja

            hi jose thankx i am going to order this battery “2450mAh Gold Business Battery for Samsung Galaxy S2 ” is that damage my samsung s2 mobile hardware parts

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

            Why don’t you order the original Samsung Galaxy S2 battery? It’s safer ;)

          • Navaja

            thankx jose. i will order original Samsung Galaxy S2 battery

  • Ramsha Shahzad

    After jelly bean upgrade front camera failed to work of my S2…. plZ tell me What 2 dO..?

    • Ramsha Shahzad

      i AlsO reset my phne but it doesn’t work