Xperia M Lollipop 5.1.1 ROM is an Official build compiled from Cyanogenmod 12.1 sources. This is an Official build brought to you by FXP, the Free Xperia Project. You have everything working on this build and this ROM ready for day to day usage and as it is still a NIGHTLY build you will be receiving most stable snapshots in future.
Installing custom ROM requires a custom recovery to be installed on your device, which may VOID your warranty and may delete all your data.
Before proceeding further you may consider backup your all data.
Please visit the Disclaimer page below to agree with the risks involved and proceed before flashing this ROM to your phone:
ROM Disclaimer link
Things needed for the Xperia M lollipop ROM installation:
Philz recovery download link for Xperia M
Xperia M lollipop ROM CyanogenMod 12.1 download link
Lollipop 5.1.1 Google Apps download link
You need an unlocked bootloader.
If you don’t have an unlock bootloader then you can unlock from here:
Xperia bootloader unlocking link\
Installing Xperia M Lollipop ROM:
Copy the ROM and Gapps zip file to your SD card or internal memory(By using a USB cable or via adb push command).
Reboot into recovery by pressing key combination or type the following command if you are on a PC:
$ adb reboot recovery
Wipe Data / Factory Reset
Format /system, clean Dalvik Cache (If you are coming from KitKat ROM)
This step may delete all your data. Make sure that you have a backup of your data. If not then follow the below link:
Data Backup guide
Select the Install Zip from SDcard option.
Select the ROM zip file where you have kept in the SD card and do the same for GApps also.
That’s all guys. Have fun and just stay tuned with us for more of such updates and we are always here to listen to your concerns.