How To Install Android 4.4.2 KitKat CM11 ROM on Xperia X10

The Sony Xperia X10 is old a lot but not cheap yet, it can still experience some latest Android updates. The Xperia X10 is even capable for Android KitKat. I have been noticing for almost past two years that the development community love to pay special attention on Xperia X10. Thanks to senior XDA developer To37f, the Android 4.4.2 KitKat based CyanogenMod 10 is available for the Sony Xperia X10 unofficially.

This Sony Ericsson Xperia X10 Android 4.4.2 KitKat CM11 build is still under alpha stages and contains bugs. This unofficial CyanogenMod build contains nearly same bugs as Evervolv 4.4.2 as bugs are due to kernel. However we hope that the developer iron out many issues soon. You should give this alpha Xperia X10 Android 4.4 ROM a try.

Requirements & Downloading Files

1. Make sure you have Xperia X10 with an unlocked bootloader.
2. Make sure you have a custom recovery installed on your phone (Note: You must be running on latest version of recovery of CWM or TWRP).
3. Download FlashTool to your computer from here.
4. Make sure USB phone drivers are installed on your computer (You may use flash tool for drivers installation.
5. Make a backup of your device’s data as the below procedure can wipe everything.
6. Download Xperia X10 KitKat CM10 ROM from XDA thread.
7. Download CM11 FTF File from here.
8. Download KitKat Gapps from here.

Disclaimer: Use everything at your own risk as Magmobibeta will not be responsible if you damage the device arising from this use. You have been warned, so proceed carefully

How To Install CyanogenMod 11 ROM on Xperia X10

Step #1: Launch the FlashTool on your computer and connect phone using a USB cable.

Step #2: Copy the nAa kernel ftf file you downloaded into the “firmwares” folder inside the “Flashtool” folder.

Step #3: Hit the lightning icon in FlashTool and select nAa ftf kernel. Then hit OK button to start kernel installation. And follow the onscreen instructions.

Step #4: Transfer the downloaded ROM zip file and Gapps package to root folder of your phone.

Step #5: Reboot phone in recovery mode by holding down Back key a few times when the Sony Ericsson logo appears on the screen as the phone is booting up.

Step #6: Take nandroid backup of your current firmware as if you mess up anything wrongly, you will be able to go back to previous position with this backup. If you are usingClockworkMod recovery, navigate to Backup and Restore>Backup. If you are on TeamWin’s TWRP recovery, navigate to Backup option, there tick all of boxes and then swipe to confirm backup.

Step #7: Select “Install” or “Install Zip”, select the CyanogenMod ROM zip package and confirm installation.

Step #8: Repeat the previous step again but this time install Google Apps package.

Step #9: Perform a wipe now. TWRP users need to tap on “Wipe” first, and then swipe to “Swipe to factory reset”. If you are using CWM, select Wipe data/Factory reset first and confirm the action.

Step #10: Select “reboot system now” or “reboot” to restart your Xperia X10.

Great job, the Android 4.4.2 KitKat based CM11 ROM is now installed on your Xperia X10. If you experience any error, you can leave comment and let us know.