4. Open Overlay Update Center APP, by double clicking on it, the initialising screen shuld take a couple of minutes to finish just wait till the end of the process, as it download devices specific configurations
3. Shut down your device
2.2 for Xperia 2012+ Lines, copy the firmware into the phone internal memory, not in the sdcard
2.1 for Xperia 2011 Lines, copy the firmware to your sdcard's root
1. First Install Overlay Update Center that you purchased
--- IMPORTENT ---
Don't turn off the device untill the end of the installation process ! the device will restart automaticly when the process is finished.
8. Installation will start and it will take couple of Seconds, when done the app will ask you for reboot just click on reboot, and wait.
The installation will continue on your device for couple of minutes.
Congratulations you installed Overlay Firmware into your Xperia, Enjoy your device and feel the Real Z3 Experience
7. After connecting the device in fastboot mode, the application will ask you to select the device you connectedSelect the device you connected and click "OK"
6. Click on “Install“ button , and follow instructions to go into fastboot mode
5. Click “Install“, this window will open
2. Then Copy your downloaded firmware package to your phone.
Overlay can only be isntalled on Devices with Unlocked Bootloader,