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How to Update HTC Thunderbolt to AOKP Jelly Bean 4.1.1 Custom ROM

The Jelly Bean based AOKP custom ROM firmware is being made available for most of the Android powered smartphones out there as the third party devs are working hardly for testing updates suitable for new devices daily. The same can be applied for the HTC Thunderbolt handset, which can now be easily updated to AOKP Android 4.1.1 custom ROM, all thanks to those of xda-developers who had managed to develop the mentioned platform for your phone. You can learn how to install the software by following the present step by step guide, so for the proper procedure check the lines from below.

Unfortunately, when it comes to OS updates, HTC seems to forget its Thunderbolt, as the smartphone was left outside the Jelly Bean wave though many other devices had already received the Android 4.1 flavor. Anyway, fortunately for you, there are numerous custom ROMs available and suitable for your HTC phone, so for being able to update its system just complete the steps from this how to guide. Also make sure you read all the following lines as this operation is being considered risky and you don’t want to mess things up.

What must be clear for you is that the present AOKP Jelly Bean update is not an official firmware released by HTC for your Thunderbolt. That means you will have to manually install the OS, as the KIES can’t be used. Furthermore, you need to complete other operations first so that you can safely apply this tutorial; you have these preparation tasks mentioned during the next few lines, so take your time and read the same. But before we do that, you should first know which the main features that will be flashed on your Thunderbolt are and for this, you have the following list. As this is a custom ROM, there will be some bugs too, and from what we could find, you will notice issues with the video camera, with Netflix and with WiFi tethering.

HTC Thunderbolt Jelly Bean AOKP main Features

HTC Thunderbolt Jelly Bean AOKP main Features

As you are about to perform an operation which is not supported by HTC, you will first need to make sure that your data is in safe hands. For this you must consider in completing a backup. Why? Well, for applying the Jelly Bean update on your Thunderbolt you will have to make a full wipe of the system, which will erase all the data from the internal storage of your device (you don’t need to backup the info from the SD card though). Therefore, before going any further, take care of the backup process. If you are a newbie, then maybe you will find helpful the next tips:

When the backup is completed you must check whether your phone is rooted or not. If not, then you must gain root access over its OS. A custom ROM can be flashed only on a system that has the factory restrictions removed and this can be done only by rooting the same. The root operation is also considered risky as the warranty will get void, so be careful in what you do. As soon as you root the Thunderbolt, you will then have to install a custom recovery image (preferable CWM recovery) on it. This tool will be used for making the wipe and for installing the AOKP ROM (more about this during the proper steps).

Now, after taking care of the above mentioned lines, you must perform the pre requisites. These are only few and easy to deal operations, but by skipping this section you will risk in bricking your device. So, we can say that this is the most relevant part of the present tutorial. First, as you may probably tell, you will have to use a Windows running computer with Internet connection enabled, your Thunderbolt and its official USB cord. Then, the update procedure can be interrupted by the security programs which are installed on your computer and on your handset. So, just deactivate the security protection first. Next, for being able to connect your device with the PC, the USB debugging option must be enabled on your smartphone. And finally you should charge your phone. Also make sure you are applying the next steps only for the HTC Thunderbolt and not for similar devices, as you can end up in bricking them.

How to Update HTC Thunderbolt to AOKP Jelly Bean 4.1.1 Custom ROM

  1. The first thing to do is to download the update file (download link here) and the Google Apps package from here to your computer.
  2. Connect the handset with the computer by using the USB cord.
  3. Select the downloaded files and copy them to your phone’s SD card.
  4. Disconnect the device by removing the USB cord.
  5. Turn off the HTC Thunderbolt and enter it in recovery mode.
  6. The recovery mode can be reached by pressing on the Volume Down button and on the Power one simultaneously.
  7. From recovery mode menu first perform the wipe I mentioned before: “wipe data factory reset” and “wipe cache partition”.
  8. When done, you should return to the recovery menu; for this select “+++go back+++”.
  9. Now, select “install zip from sd card” and “choose zip from sd card” for beginning the installation procedure.
  10. Pick the update file first and install it on your phone and when finished do the same for flashing the Google apps package.
  11. Wait until the installation ends and don’t make any other changes.
  12. Select “+++go back+++” and “reboot system now” for ending the update operation.

Well, that was all for today as the HTC Thunderbolt was successfully updated to Android 4.1.1 Jelly Bean OS. All this was possible thanks to those of xda-developers who had first tested the AOKP custom ROM firmware on the Thunderbolt. All you should do now is to test the new OS and see how it performs on your phone. In the end, share your impressions with us and do tell us if there are bugs or things that aren’t working as it should.

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