How To update OTA without bootloop on Rooted Zenfone 2

How To update OTA without bootloop on Rooted Zenfone 2 First things first: (get this straight, dont download the wrong firmware and flash the wrong thing) ZE550ML = Z008 ZE551ML[2gb,4gb ram] = Z00A Files Needed: Drivers for Asus Zenfone 2 installed on PC ADB installed on your PC (Download) Flash Tools (Download) Pre-rooted system.img and recovery (Download) (Download the correct firmware which is present in your phone) Steps: Download the pre-rooted system.img folder (Download the correct firmware according to your phone ZE550ML = Z008 , ZE551ML = Z00A ) Download and run WinRAR . Click on the .zip part of the system.img file. You will see that WinRAR puts all the parts together and offers you an option to extract the one big system.img. Go ahead and extract it to the folder the other parts of the ROM are in. Unzip the FlashTools.zip and copy the following 4 downloaded files and paste it into extracted flashtools folder: boot.img (~ 11MB) droidboot.img (~ 13MB) recovery.img (~ 11MB) sys...