- First download firmware.
- Copy RAW file to SD card and put SD card to Zenfone4.
- Start a Droidboot mode.(press power + vol up button)
Posted：金曜日, 5月 20, 2016 by lonestar
My Zenfone4 broke completely. I could never do Factory reset.System is currently suspended.(photo below) I was able to be revived from this state in the following way.