Update Galaxy S2 Plus NFC GT-I9105P to Android 4.2.2 XXUBMI3 Official Firmware

Installing Android 4.2.2 XXUBMI3 on Galaxy S2 Plus NFC GT-I9105P will be a piece of cake. We have a guide that will help you install the new firmware on your smartphone and then you will be able to see all that this OS has to offer.

The new Jelly Bean firmware has seen two versions already: one in November for Portugal (TPH carrier), Germany (O2 carrier), Bulgaria, Macedonia and Serbia (for Telekom) and one released this month for the Netherlands (T-Mobile), Open Austria, Slovenia (Si.mobil), Bulgaria (VVT) and Italy. The official new firmware comes after the launch date of the handset, which was in February 2013.

When you want to upgrade your Galaxy S2 Plus I9105P to the Android 4.2.2 XXUBMI3 official firmware, you will have to prepare for this: if the phone is rooted, the new firmware will delete its system partition and revoke the root access.

The data of major importance that your device runs will not be erased and the internal / external SD cards will not be affected.

You should use today’s tutorial on a phone which has a custom ROM pre-installed. Also, don’t perform the update on another phone because if you do that, the following will happen: the device will end up bricked.

Since the KIES logo of the firmware is activated, you will get to update the smartphone with Samsung’s KIES software, too. If you don’t want to do that via this tool or our guide, you should try with OTA by making use of the Software Update button under Settings menu.


Some quick info about what’s included in the new firmware: such as bug fixes, new download notifications, USB debug white-list, new Gallery app which delivers faster speeds when loading, long-pressing the WiFi and Bluetooth icons in Quick Settings will toggle the on/off state, new sounds for wireless charging and low battery, and fixed Bluetooth audio streaming bugs.

The pre-requisites below are what you should do now:

  • enable USB Debugging on the handset;
  • flash USB drivers fit for the Galaxy S2 Plus from here on your laptop;
  • keep the USB cord of your phone close to you so that you can use it later;
  • charge the phone’s battery;
  • be sure to create 2 kinds of backups, which must be a standard one and a NANDroid one, too, via these instructions;
  • turn off, on both your notebook and your NFC phone, every single one of the security programs flashed on them;
  • follow our tutorial only if the notebook or comp is running Windows.Galaxy-S2-Plus-I9105P


  1. You should get the guide going by first performing this first step: download the Jelly Bean 4.2.2 XXUBMI3 stock firmware (you must choose the file compatible with your I9105P by country: Portugal, Germany, Macedonia, Serbia, Bulgaria, Netherlands, Austria, Slovenia, Bulgaria – VVT and Italy) and then Odin tool from this page on your PC/laptop. These same two packages should be unzipped on your notebook.
  2. After your laptop or comp sees these files, you need to do this next: boot the smartphone into Download Mode. For this step, you have to press and hold, at the same time, these Volume Down + Home + Power and, after you do as such, the screen will have the Android icon on it and a warning message, so you should now press Volume Up.
  3. Next item to be ticked off the guide list: launch, as an Admin and on your laptop, the Odin.
  4. Take the USB cord that we told you to keep close and use it to establish a connection between the two devices you own.
  5. The Odin will, in a few seconds, begin to detect the handset and then display a yellow ID:COM box and an “Added!!” message; if the previous two don’t make their way on the display, you have to re-install the USB drivers or use a USB port which is different to the one used previously.
  6. Another step you must follow is detailed now: click on PDA, opt for a file with a CODE in its name, tap Phone, opt for a file with MODEM in the name, click on CSC, choose a file which has CSC in its name, tap PIT and select a file that comes with a .pit extension.
  7. Check Re-partition, F. Reset Time and Auto Reboot now. You will be welcomed by an option labelled “Start“. Tap it.
  8. After the new firmware is flashed on the device, the latter is going to restart, pop up a “Pass” message and then you will be able to unplug the Samsung GT-I9105P from your PC or laptop to freely enjoy the Jelly Bean 4.2.2 XXUBMI3.

If this official firmware is not what it’s made to be, go back to the previous ROM with the NANDroid backup file. In case of any kind of issue, leave a comment below.

Posted In How To - By Mihai Mateescu

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