Update Galaxy Ace 2 with pre-released Jelly Bean 4.1.2 OS

If you want to be among the first users who are updating the Samsung Galaxy Ace 2 to official Android 4.1.2 Jelly Bean OS, then the timing is perfect as a pre-released version of the firmware has just been leaked. Therefore, by completing this step by step guide you will be able to install the stock Jelly Bean software on your Galaxy Ace 2 before the OTA launch meaning that you won’t have to wait until Samsung or your carrier will start rolling out the Android 4.1.2 ROM. The suitable tutorial is being explained below, so for further aspects check the same.

Now, this version of the update has the built number XXMB2 and is the first leaked variant of the official Android 4.1.2 Jelly Bean OS, which will soon be made available for your Galaxy Ace 2 handset. The exact release date of the OTA firmware hasn’t been officially announced and furthermore, as you know, when talking about official updates, the same will not arrive to all the Ace 2 users at the same time. The ROM will be made available on different markets, on different periods and also the carriers will provide the software on different dates. So, why to wait that long, when you can flash the Jelly Bean OS on your Galaxy Ace 2 starting from now?

The best part is that we are dealing with the stock ROM and not with a custom one. Therefore you will not have to perform complex operations in order to prepare your Ace 2 for the installation procedure. But, since this is a leaked version of the Jelly Bean firmware, you will have to apply a manual flashing operation in order to update your device with the latest Android system. Therefore, consider this tutorial a complex and risky one; read all the lines from below for avoiding the unpleasant situations.

For detailing the up mentioned facts, here is what you need to know at this point: you don’t have to previously root your smartphone for being able to install the leaked Jelly Bean OS. Also, if you do have a rooted device, then, by completing this step by step guide you will revoke the root access and relock the bootloader. Therefore, if your Galaxy Ace 2 is currently running on a custom ROM, now you will be able to flash the stock firmware and also restore its lost warranty. After applying the present procedure, if you will want to re-root your phone, you will have to use a guide that is suitable with the official Jelly Bean 4.1.2 software.

Since this is still a manual installation procedure, for being able to avoid the unpleasant situations and for ensuring that everything will work as planned, before going any further you need to take care of the pre requisites. The same are being explained and detailed during the next list, so take a look and complete the following preparation tasks.

  • Backup the Samsung Galaxy Ace 2 data. For the updating process Odin will be used, which means that it is unlikely to lose your personal info, but you can never be too sure what happens. Actually, if you will get a boot loop (in the end of the update operation) a full wipe of the system will have to be performed in order to make things work. That’s why I do recommend you to save the contacts, text messages, call logs, EFS and everything else you need to.
  • Then, make sure that you are having access to a Windows powered computer or notebook, to your smartphone and to its USB cord.
  • Deactivate the security settings and uninstall the security programs from both computer and handset because these tools are usually interfering with the update operation and we don’t want that to happen.
  • Charge the battery of your device if you notice that there is less than 60% power left on your phone; else the Galaxy Ace 2 might get turned off in the middle of the installation procedure and you will risk in bricking your handset.
  • Apply the following guide only if you want to update the Samsung Galaxy Ace 2 to leaked and official Android 4.1.2 Jelly Bean OS; installing the firmware on a similar device by using the same steps will make you brick your smartphone.

How to Update Galaxy Ace 2 with leaked Jelly Bean 4.1.2 XXMB2 OS

  1. Download Samsung KIES and install the proper drivers for your phone on your computer.
  2. Download and install Odin on the computer.
  3. Download the update file from here.
  4. Extract the firmware file on the computer.
  5. On the PC open Odin.
  6. Turn off the phone.
  7. Reboot it into download mode.
  8. With the Galaxy Ace 2 in download mode use the USB cable and connect the device with the computer.
  9. Take a look on Odin: the “added” message should now be displayed and the ID:COM section should be either yellow or blue.
  10. If different, it means that something went wrong; so you will have to disconnect the devices, turn off Odin, reinstall the drivers and then repeat the procedure from the beginning.
  11. Then, from Odin, select “PDA” and pick the “I8160XXMB2” file and “CSC” and pick the “I8160OXAMB4” file.
  12. Don’t make any other changes; click on “Start” to begin the update process.
  13. When it is done, on Odin the “pass” message will be displayed; you can unplug the USB cable and reboot your phone.

If the first boot takes longer than usual, don’t panic there is nothing wrong with your handset. But if you do get a boot loop here is what you need to do:

  • Reboot the phone into recovery mode.
  • From the recovery mode select “wipe data factory reset” and “wipe cache partition” (remember to backup the data or else everything will be wiped out).
  • Then select “+++go back+++” and “reboot system now”.
  • Done.

Furthermore, if during the update operation, Odin gets stuck, you need to unplug the USb cable, turn off Odin, force restart your smartphone, reinstall the drivers on the computer and then re-do all the steps from the beginning.

Congratulations, now you know everything about how to update the Samsung Galaxy Ace 2 to official Android 4.1.2 Jelly Bean OS. Be aware as this is a leaked variant (a pre-released version to be more precise) of the official update that will soon be OTA released by Samsung for the Galaxy Ace 2 which means that there might be some minor bugs into the firmware system. So, test the software and share your impressions and thoughts with us and with other users by using the comments area from below.

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