The CyanogenMod 10 (CM10) is out for the Sony Xperia X8, an unofficial build is now available, the CM10 is based on Android 4.1.1 Jelly Bean, it’s AOSP custom ROM that gives you fully stock Android experience, thanks to senior XDA developer member Daveee10. The ROM features trebuchet launcher, power widget toggles on notification bar, performance settings, and faster UI.
However it’s not fully stable yet, it’s just preview build and you can expect some bugs, the FM Radio, Camera, Mic, Project Butter, HW video encoder/decoder and Audio/Video Playback aren’t working yet. You can use this build just to taste Android 4.1 Jelly Bean but developer will fix these bugs soon in near future.
Do note that your device must be rooted with ClockworkMod recovery installed its battery should be charged. Make a backup of your device data such as SMS, internet setting, contacts music files etc because the below procedure may wipe data, you can sync your contacts with Gmail account and for messages use SMS apps, lastly use file expert app to backup apps.
DISCLAIMER: Please proceed the below guide at your own risk, Android Egis will not be held responsible if your device lost data or get damaged following this guide.
Step #2: Transfer the downloaded ROM .zip file to SD card of device.
Step #3: Install the kernel you downloaded in first step via flash tool.
Step #4: Turn the device off.
Step #5: Reboot the device into recovery mode, to do so, power on device, during the bootup, press the Back button several times. This will carry the phone into ClockworkMod Recovery mode (Note: In recovery mode use volume keys to navigate and power button to select).
Step #6: In recovery mode, create a nandroid backup of your current ROM, it’s important because if anything not work out that you expect from this ROM, you’ll be able to easily revert back to your current state. To create backup select “Backup and Restore”, and then select “Backup” again.
Step #7: Perform full wipe:
Wipe data/factory reset
Advanced > Wipe Dalvik cache
Step #8: Select “Install Zip from SD Card” then “Choose Zip from SD Card” and locate the downloaded ROM .zip file that you’ve transferred in above step and confirm installation. Wait till installation complete.
Step #9: Once the installation is completed, select “Go Back” after that select “Reboot System Now.”
Step #10: Once the phone is rebooted, reboot phone again.
That’s it, you’re done. Enjoy Android 4.1 Jelly Bean, do comment below for queries. You can also visit the original thread of XDA link given in first step.