Jelly Bean is no new thing to us. It’s almost a year since Google launched it. And whenever Google launches a new update of Android, Samsung brings a new device in the market with that OS update. Samsung rolled out Jelly Bean updates after the launch of their second phablet Galaxy Note II. Subsequently, they announced Jelly Bean upgrade to devices like Galaxy S3, Galaxy S Advance, Galaxy Ace 2 etc. Till now, Samsung has released JB firmwares for almost all the devices which they had included in the list, at the time of announcement. Recently they rolled out Android 4.1.2 upgrade for Galaxy S2 I9100 (International variant). And now it’s up for another variant of Galaxy S2. Yes, you got it right. Android 4.1.2 is now officially launched for Galaxy S2 I9100G, in the form of XXLSR firmware.

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Android 4.1.2 XXLSR Jelly Bean firmware is specifically released for France country. If you are from France then you can upgrade your phone through Samsung’s official updating tool ‘Kies’ or through OTA too. But if you don’t belong to France and still want to upgrade your phone to Android 4.1.2 then don’t worry. Just follow step by step instructions given in this guide & manually upgrade your Galaxy S2 I9100G. So, let’s begin!

Disclaimer : Steps given in this article are considered as risky & can cause damage to your device. You should not try to attempt these things if you aren’t aware of it. Please follow this guide completely at your own risk. If any damage happened to your device while following this tutorial, we should not be held liable for it.

The given article is strictly intended for Samsung Galaxy S2 having model number GT-I9100G. Using this guide on any other model or variant (of Galaxy S2 i.e, I9100) might give you undesired results. Your device may get bricked by doing so.

Pre-Requisites:

• Charge your device up to 75% battery level.

• It is highly recommended to backup all your data from internal storage memory (includes contacts, messages (SMS/MMS), call logs, Internet APNs etc.). Your phone data will vanish after installation of this firmware (excluding External storage like SD card).

• Samsung device drivers must be installed on your computer in order to make the phone recognized by it. You can install the same by installing Samsung Kies. To download it manually, click here. OR Download device drivers directly from below:

Dec 30, 2017  Do you want to Install any Custom ROM For Samsung Galaxy S2 device? Then you are at the right place. Here we will list all the Custom ROM For Samsung Galaxy S2. If you have a Samsung Galaxy S2 device, then you may be knowing that this device runs on Android OS. Well, the biggest advantage of Android is that it is an open-source project. Jul 01, 2012  Step 1 – Download Android 4.1 JB for Galaxy S2 to your computer. Step 2 – Connect and mount your Galaxy S2 USB memory on your computer using the USB cable. Step 3 – Now copy/paste the downloaded ZIP file to your SD card. Make sure the file is in the SD card root (not in any folder).

Procedure to Update Samsung Galaxy S2 I9100G with XXLSR Jelly Bean Firmware (Android 4.1.2):

• Download Odin Multi Downloader v3.07 (Firmware flashing Program) & Jelly Bean 4.1.2 Package from the links mentioned below :

• Extract firmware package (.zip file) to any convenient location on your computer. You’ll find a file with .tar.md5 extension.

• Now, switch off the phone completely. Enter into download mode. For doing the same, press & hold Volume down + Home button (Middle one). While holding both buttons, simply press Power key till you see the warning message appeared on your phone screen. Press Volume up to continue. Finally you’ll see the construction Android robot & a yellow triangle, that means your device has entered in download mode.

• Open Odin Multi Downloader tool on your Computer which you’ve just downloaded & connect the phone using USB cable.

• If your phone is connected successfully, youll see that the ID:COM section (located at top left) is turned blue with a random COM port number appeared below it (If your ID:COM box doesnt turn out to be blue, don’t worry. Just install Samsung drivers using the link mentioned in Pre-requisites).

• In Odin, select PDA tab & choose “I9100GXXLSR_I9100GXXLSP_I9100GXEFLSR_HOME.tar.md5″ file. Keep all the remaining options as they are. Just make sure that Re-Partition box is not ticked.

• Finally hit Start button to initiate the flashing process of Android 4.1.2 Jelly Bean firmware on your Galaxy S2. Sit back & relax until Odin finishes its task. When flashing process gets done, Odin will display the Pass message above ID:COM (with the Green background color) & device will restart automatically.

• Unplug the device from Computer.

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• Now you will need to factory reset the phone in order to avoid boot loops & malfunctioning of the phone.

• To factory reset, youll have to boot in the recovery mode. The same can be achieved by following some simple steps.

1. Switch off the phone (you can do this by removing battery or pressing power button).
2. Press & hold Volume up + Home button together & then press Power key. You can release Power button as soon as Samsung logo appears.
3. Your device is now booted into recovery mode.

• Since touch wont work in recovery, use Volume up/down & power key only for navigation & selection respectively.

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• Now highlight Wipe data/factory reset by using Volume buttons & select it using power key. The same you have to do with Wipe Cache.

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• After getting done with all these things, select reboot system now option to restart the phone.

• You may see that the phone is booting slowly than usual but dont worry it’s normal & this is for the first time only.

Congratulations! You’ve successfully upgraded your Galaxy S2 GT-I9100G to Android 4.1.2 XXLSR Jelly Bean firmware. Do report us how it is working for you. Feel free to ask any doubt in comment section below, we will try our best to answer you as quick as possible.