[Share] How to : Revert back your Zenfone 5 From Marshmallow to Lollipop [ENG]

So, after a while playing around with the Marshmallow build things i think i miss a lot of Zenfone 5 stock features like ZenUI and Splendid (that app is cool btw, but isn't supported on custom rom). I'm pretty sure that you guys feel the same way too and want to know the easiest steps to get your device back to stock ROM even if you didn't take any backup before. This ROM is cleaned (debloated) from unnecessesary stuff and added few tweaks on the build.prop so the device will perform better even from real custom rom. Note that for installation you need the unlocked bootloader and Intel USB Driver is properly installed on your computer.

Installation :

Download the recovery image, adb files, ROM and GApps
Copy the ROM and GApps to SD Card along with the optional installation packages
Copy your files that you want to backed up because we are going to do a clean install
Reboot your device to droidboot (fastboot) mode [ power + vol. up]
Put recovery image inside adb folder
Clean the device using command "fastboot erase system"; "fastboot erase data" and "fastboot erase cache"
Flash the recovery using following command : "fastboot flash recovery Recovery.img"
Reboot to recovery : "fastboot reboot-bootloader"
Mount manually every partition
Once again wipe everything except SD Card
Install the ROM, clear cache
Install GApps, clear cache
Install SuperSU, clear cache
Install optional packages (Xposed, V4A), don't forget to clear cache after installing any zips
Once it booted up to system, open ASUS Autostart Manager and allow SuperSU to autostart at boot
Open SuperSU and disable "mount namespace separation"