There are two methods to hard reset your Asus ZenFone 5 mobile device. Before attempting any of the two methods, you should be aware of the fact that all data stored on the device will be lost after the reset.
Hard Reset Asus ZenFone
First switch off your phone as you would normally. Proceed to press and then hold the Volume up button and the power button concurrently. Release the keys only when you see menu on the screen. If the menu appears, press the volume down button to select ‘’Recovery’’ option, and push the power button to confirm. Select ‘’Yes, delete all user data’’. Still use the volume down button to scroll and the power key to select. To restart the phone choose ‘’Reboot system now’’. At this final step your hard reset is a success.
Hard Reset Asus ZenFone 2:
With your phone on, scroll tosettings and find backup and reset. Choose factory data reset and choose Reset Phone. You will be prompted for a safety code and then select Erase everything. Press Ok to confirm and the operation is done.
Note that method 1 only works with the phone off while method 2 only works when the phone is on.