How to perform Sony Xperia Z5 Hard Reset?
Warning! All data files will be lost!
- Start by turn off the cell phone by holding down the Power key.
- You should download flashtool from Sony website: http://developer.sonymobile.com/services/flash-tool/
- Make sure, that you have installed drivers for your USB data cable.
- Press and hold Volume Down, and connect to USB cable.
- Follow the instructions on your screen, and accept appropriate options.