Update Galaxy S2 to Android 4.2 with CyanogenMod 10.1 nightlies [official]
The Samsung Galaxy S2 is still waiting for the Jelly Bean update but CyanogenMod loves to upgrade your Android devices to Jelly Bean even Android 4.2, the official CyanogenMod nightly build is now available for the Galaxy S2 I9100.
CyanogenMod offers a lot of customizable features that allow you to optimize the interface and many useful apps such as Apollo music player, file manager apps, etc while nightly build makes new build automatically to bring new changes but bear in mind it may bring bugs.
Read on how to install CyanogenMod 10.1 on Galaxy S2 I9100, your Galaxy S2 must be on XXLPQ ICS firmware and rooted with ClockworkMod recovery installed, check your device firmware detail from Setting>About Phone, or check out our this guide to install XXLPQ firmware and follow our this guide to root Galaxy Note 2 on XXLPQ. Back up everything 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 gets damaged following this guide.
Step #2: Transfer downloaded zip files to the internal SD card of device.
Step #3: Turn the device off.
Step #4: Reboot the device into recovery mode by holding down volume up, home and power buttons.
Step #5: 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 #6: Perform wipe, select the wipe data/factory reset, and confirm on the next screen.
Step #7: Return to main menu by selecting “Go Back”.
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.
Step #9: Repeat the previous step and install the Google Apps package in the same manner.
Step #10: Once the installation is completed, select “Go Back” after that select “Reboot System Now” to reboot phone.
That’s it, the CyanogenMod is now installed on your Galaxy S2, enjoy! If you experience any error during installation, do comment.