how to root asus zenfone 2 ze551ml or ze550ml so first of all you need to download some files beta supersu.zip beta apk unlocck bootloader and the last thing u need to download twrp recovery for ur asus download plateform tools installation progress- install beta super su apk in your znfone and copy beta super su.zip in internal sd card install adb drivers in your pc install intel android drivers then connect ur cable with pc now hold volume up and power so when u feel vibration leave power key and hold volume up key until it goes to bootloader and open plateform tools writhe these cmd given below fastboot flash recovery (recovery name).img and hit enter and open unlock.bat from fastboot unlocker and then click on restore after that go to recovery mode and then click on install bowse your beta super su zip from internal storage and swipe it and now your is zenfone now rooted a nd enjoy Thanks to all created and uploaded by malik...