Update Sony Xperia ZL with CM10.1 Jelly Bean 4.2.2 Custom ROM

When owning a high end Android powered smartphone it’s all about tweaking and performing customization and optimization operations; and what can you do more than updating to a custom ROM firmware? If you think so too, then this guide will be extremely helpful for you as during the next lines I will teach you how to update the Sony Xperia ZL with the CM10.1 Android 4.2.2 Jelly Bean custom ROM software. Therefore, if I have aroused your attention, then take a look below and see if you choose to flash the CM10.1 system on your Xperia ZL and update to custom Jelly Bean 4.2.2 OS or not.

Before beginning the update procedure, you first have to read some general aspects related to the present version of the CM software. The ROM has been developed and offered by those of xda-developers so we have them to thanks for the present step by step guide. This is the unofficial variant of the CM10.1 firmware, so you will not update your Xperia ZL with the official CM system. Furthermore, the same is not an official or stock Android 4.2.2 Jelly Bean update released by Sony for your Xperia ZL; you are dealing with a custom ROM.

Don’t worry though as even if this is not the official CM10.1 custom ROM, the platform is stable and has no bugs or issues, meaning that the firmware will smoothly run on your Sony Xperia ZL. Also, you will get all the CM10.1 features, apps and capabilities, all included on a custom Jelly Bean 4.2.2 OS. So, in order to conclude, here is want you need to know: this is an unofficial update available for the Zl; by flashing the CM10.1 OS on your phone you will install extra features and apps that can be used for improving the performances of you device and for changing the looks and the Android interface from the same.

Anyway, if you still want to know more about the CM10.1 custom ROM then check our source page by going here. Then, resume the rest of the lines explained on this tutorial for learning how to prepare the Xperia ZL for the update operation and then for learning how to install the firmware into its system. Remember that this is not the only update available for your phone, so you can anytime choose to flash a different ROM, like the CM10.1 and MIUI based Avatar custom ROM.

In order to succeed with this method, you need to have a rooted smartphone; also, on your device a custom recovery image must be installed because the stock recovery can’t be used when trying to flash custom ROMs. When rooting the warranty will get void as you will perform an unofficial procedure, so be careful in what you apply on your handset. Note that the warranty can be easily restored if needed; all you need to do is to downgrade / update your Xperia ZL to official / stock Android Jelly Bean OS.

It is recommended to backup the ZL data because you are about to complete a complex operation. Also, in order to make things works you will have to wipe the system of your device, meaning that you will lose all of your personal info. So, use backup and restore apps from Google Play (or follow our backup and restore guides) and save anything you need to. Take note as if you have rooted your handset, then you can also save the current ROM by applying a Nandroid backup.

As usual, a Windows running computer, your phone and its USB cord are being required. On both computer and smartphone you should first uninstall or deactivate all the security tools or programs for avoiding the unpleasant situations. Also, the phone must be charged (minimum 60% power should be there) or else it might get turned off in the middle of the update procedure – and get bricked. Enable the USB debugging option on your Xperia ZL or else you will not be able to properly connect the phone with the computer.

The present guide is compatible only with the Sony Xperia ZL so don’t try to apply the next steps and the above explained pre requisites on a similar or different device as the present version of CM10.1 Jelly Bean 4.2.2 custom ROM will work only on the mentioned handset.

How to Update Sony Xperia ZL with CM10.1 Jelly Bean 4.2.2 Custom ROM Firmware

  1. Download the update file from here (get the FXP210_cm-10.1-20130310-UNOFFICIAL-odin.zip file) .
  2. Save the file on your computer first.
  3. Use the USB cable and connect your phone with the computer.
  4. Select the downloaded file and copy-paste, or just drag and drop, the same from the PC to your Xperia ZL.
  5. Unplug the USB cable and turn off the phone.
  6. Reboot it into recovery mode.
  7. Select “wipe data factory reset”, “wipe cache partition” and “wipe dalvick cache”.
  8. Return to the main menu of recovery.
  9. This time select “install zip from sd card” and “choose zip from sd card”.
  10. Pick the CM10.1 file and flash the same.
  11. Wait while the firmware is being installed.
  12. When the flashing procedure is over, select “+++go back+++” followed by “reboot system now”.
  13. If in the end your phone will get stuck in a boot loop, the re-wipe the system once more by using the recovery mode again.

Good job, you have completed the tutorial, so now your Sony Xperia ZL is being running on the unofficial CM10.1 Custom ROM firmware. The phone is being powered by a custom Android 4.2.2 Jelly Bean OS, so test the same for checking if there are bugs or not (there shouldn’t be any kind of issues). Do share your general impressions related to the software and to the step by step guide with us and with other users by using the comments area from below.

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