I9105XXUBML1 Android 4.2.2 JB Firmware For Galaxy S2 Plus I9105 – How To Guide

Warning: This tutorial is only for Galaxy S2 Plus GT-I9105. Don’t try this guide on any other Android device. Also, we (True Android Team) are not responsible for any damage caused due to the instruction given in this page. Try this at your own risk. However, it is very unlikely that your device will be damaged if you follow all the instructions as it is which are mentioned in procedure.

Pre Requisites:

Though official firmware restore all existing data but we recommend to back up your data first before proceeding to avoid any uncomfortable situation such as bootloop fix.

1. Backup your device data. You can follow our ultimate backup guide.

2.  Make sure your device have at least 60% battery power. You can install an app like Battery Percentage on your Android device to check it easily.

3. You already have USB Driver Installed for Galaxy S2 Plus GT-I9105 in your PC. [Download USB Drivers]

4. Make sure USB Debugging is enabled otherwise you won’t able to transfer file between PC and Galaxy S2 Plus GT-I9105. [Guide].

How To Update Galaxy S2 Plus GT-I9105 via OTA

1. First of all make sure you have stable internet connection (Wi-Fi or data network) on your device.
2. Now, go to Android app drawer and then select Settings.
3. Then locate About Device and tap on it.
4. Next select Software update from About device screen.
5. Then tap on Update option.
6. You should see an update, press OK to download and install. (Remember, download using 3G or network data will incur additional charges to your phone bill!)
7. Soon your device will reboot to complete the installation process.

If you see “The latest update have already been installed” massage while checking update then your device yet to receive an OTA update. Check back within few days or jump to next procedure.

How To Update Galaxy S2 Plus GT-I9105 via Kies

1. Make sure you have stable internet connection on your computer.
2. Now download and install Samsung Kies on your computer.
3. Turn on your device (if it off) and then connect it to computer with USB cable.
4. Run Samsung Kies and wait for it to detect your device.
5. You should see a New Firmware Upgrade is available at Samsung Kies home screen.
6. Press the Firmware Upgrade button to proceed.
7. Follow on screen instruction and soon you will see your device running upgrade and reboot automatically. Once done, you can disconnect your device from computer.

Again! If you see “This is the latest firmware” in Samsung Kies, then your device yet to receive the latest update on Kies. Its good time to go for manual update instruction that located below.

I9105XXUBML1 Android 4.2.2 Jelly Bean Firmware Details:
PDA: I9105XXUBML1
CSC: I9105OXEBML1
Download: I9105XXUBML1_I9105OXEBML1_SER.zip

[Please Note: After flashing this firmware you will lost any installed custom ROM including CM10.2, AOKP, Avatar, Beanstalk, Omni ROM, Slim ROM, Pac-Man, Paranoid Android, LiquidSmooth or Carbon.]

How To Install I9105XXUBML1 Android 4.2.2 Jelly Bean On Galaxy S2 Plus GT-I9105 Manually

1. Download Odin v3.09.
2. Extract Firmware zip file that you downloaded earlier from above link, you will get a .tar.md5 file and some other files (optional).
3. Extract Odin zip file and you will get Odin3 v3.09.exe along with few other files.
4. Power off your Android device. Wait 5-6 seconds for vibration to confirm complete switch off.
5. Now, put the Galaxy S2 Plus GT-I9105  in Download Mode by pressing and holding down the Home & Volume Down button together while pressing the Power button. A warning screen will come up; press Volume Up button to enter Download Mode.
6. Now run Odin3 v3.09.exe (see Step 3) as an Administrator because Admin privileges is required to complete the process smoothly (only applicable Windows Vista and higher).
7. Now connect your device to your PC using USB cable. An “Added!!” massage will appear in Odin’s message box. If you don’t get the same then you should try another USB port (try USB port located in back in your desktop PC). If that too don’t work then you should reinstall the driver. If you successfully see the “Added!!” message in Odin then you are ready to go in next step. You should also see COM port with a number in Yellow if you successfully added your device.
8. Click the AP Button, and select that .tar.md5 file that you get in Step 2. If you are using old Odin then add the file to PDA button.
9. In Odin window, make sure only Auto Reboot and F. Reset Time checkboxes are selected.
10. Double check everything that we mentioned in Step 8 & Step 9 above. Now, once satisfied hit the START button to begin the flashing process.
11. Once flashing completed, your Galaxy S2 Plus GT-I9105 will restart and soon you will see a PASS message with green background in the left-most box at the very top of the Odin. You can now unplug the USB cable to disconnect your device from computer.

Congrats! You just updated your Galaxy S2 Plus GT-I9105 to Android 4.2.2 Jelly Bean firmware. Go to Settings > About device to verify this firmware update.

Fix Boot Loop Issue On Galaxy S2 Plus GT-I9105

If Galaxy S2 Plus GT-I9105 stuck at booting animation for more than 10 minutes after Step 11 then follow below instructions:

1. Go to recovery mode. To do so, press and hold the Volume Up, Home and Power buttons together.
2. Now perform Wipe data/Factory Reset and Wipe Cache Partition task before selecting reboot system now function. In recovery mode use Volume keys to navigate between options and Power key to select the option.

Please note, performing wiping task will erase your device internal memory data and not external SD card data.

That’s it! Let us know about your latest Android 4.2.2 Jelly Bean experience.