Sony Xperia Z1 is a superb smartphone from Sony, now the Xperia Z1 users time to taste the KitKat flavor. This is not a official ROM from Sony, it is developed by CyanogenMod developers. You can update the Sony Xperia Z1 with Android 4.4.4 CM11 M8 Custom ROM using this simple tutorial. Since it is not a official ROM it require custom recovery to flash the ROM.
- First backup all your contacts, call logs and SMS.
- Enable USB debugging mode from Settings->Applications->Development->USB debugging in your device.
- Install latest Sony Xperia Z1 USB drives on your computer.
How To Install Android 4.4.4 CM11 M8 Custom ROM On Sony Xperia Z1
2.Connect your device to computer and transfer the downloaded files to your internal SD card and make sure the files are in the SD card root.
3.Disconnect device from PC and turn off the device.
4.Now enter into bootloader mode by pressing and holding volume up+volume down and power buttons together.
5.Now enter into bootloader and go to recovery option. Here perform a full data wipe by selecting “wipe data/factory reset”, cache wipe by selecting “wipe cache partition” and also perform wipe dalvik cache .
6.Now go to main screen and select “install zip from SD card”. Navigate using volume keys and select Android 4.4.4 ROM zip file that you copied to your SD card and select it using the Power button.
7.Same procedure (step 6 only) is applied for Google Apps package also.
8.After installations go back and reboot the device.
For the confirmation go to Settings>>About phone to verify the firmware update.