How to Install Xperia Arc LT15i / LT15a Android 4.1.1 Jelly Bean CM10 Custom Firmware

• Last modified: Tips

Android 4.1.1 Jelly for Sony Ericsson Xperia Arc LT15i / LT15a is now available, all thanks to the CyanogenMod 10 (CM10) community working behind it. This custom ROM is the work from FreeXperia team who has brought Jelly Bean stock Android experience to your Xperia Arc phones. You can easily install Android 4.1.1 CM10 Jelly Bean on Xperia Arc LT15i / LT15a with the easy tutorial given below. You need to have ClockworkMod recovery installed.

In this tutorial, we will tell you how to update Xperia Arc LT15i / LT15a to CM10 Android 4.1.1 Jelly Bean firmware with complete steps and instructions. Make sure you backup all your data as given in the tips below, because you never know when something might go wrong and you’d have to roll over. Let’s get on with the tutorial now.

Disclaimer: All the tools, mods or ROMs mentioned below belong to their respective owners/developers. We (TeamAndroid.com) or the developers are not to be held responsible if you damage or brick your device. We don’t have you on gun point to try out this tutorial ;-)

What’s Not Working:

  • Lots of features. This ROM is still WIP (work in progress).

Make sure you have installed all your USB drivers for the Sony Ericsson Xperia Arc to connect it with the computer. Download Sony Ericsson Xperia Arc USB drivers! Apart from just the USB drivers, there are a few more things that you need to take care of.

1. You need to enable USB debugging mode. This helps to connect your Android phone with the PC. See here: How to Enable USB Debugging.

2. Your phone battery should be 80-85% charged. If your phone goes off suddenly because of battery, during flashing ROMs or installing mods and updates — your phone might go dead permanently. See here: How to Check Battery Percentage.

3. Backup all your important data that you might need as soon as your flash a new ROM, or make a backup for just in case, you never know when anything might go wrong. See below on how to backup data:

4. Your phone should be factory unlocked. Additional instructions for locked Android devices will be added in the tutorial for unlocking devices.

UPDATE: CM10 with the latest Android 4.1.2 is now available for this Android phone. Read here for the tutorial.

Now, let’s proceed with the tutorial on the next page and update Xperia Arc LT15i / LT15a to Android 4.1.1 Jelly Bean CM10 firmware.


  • igmedio dela rosa

    Hello guys, I have some problem rearding to my lt15i, its running slowly, can u help me?

    • http://www.sizzledcore.com Haris Nadeem

      It is running slow on this CM10 ROM?