Some models of Zenfone are equipped with AMOLED screen and to ensure the function of AMOLED screen working well, sleep time for the screen cannot set as "Never "
Such as ZenFone 3 Deluxe(ZS570KL) , ZenFone 4 Pro (ZS551KL) , ZenFone 4 Selfie Pro (ZD552KL) , etc.
