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Screen won't turn off/go to sleep

I have a Zenfone max plus (m1) and the phone won't go to sleep when I press the power button or when the screen times out. It just blinks black and goes to the lockscreen. I've tried disabling gesture control and I opened the case to see if there was any dirt on it (it was clean). The problem seems to go away when the phone is charging, but comes back a couple seconds after unplugging it.

Rising Star I
Have you tried factory reset ?


Have you tried factory reset ?

View post
Just tried it now, and it didn't help.

Community Legend II
Hi canoemanofnewmarket
Thank you for your asking.
1. Kindly try to enter "Safe Mode". If the function works well in Safe Mode yet the issue remains out of Safe Mode, please check on any disturbance from the installed 3rd party apps.
# How to enter and exit "Safe Mode"
[Phone/Pad] How to Enter and Exit Safe Mode? | Official Support | ASUS Global2. Please clean the power key and press the power key several times for it's fluency
3. Make sure that the "Double-tap to wake up" is closed
Settings>Advanced>ZenMotion>Touch Gesture>Double-tap to wake up
4. Furthermore, kindly check on SMMI test 
Calculator> type ".12345+=">SMMI TEST>Single Test>Proximity Test/ECompass Test/Modem Test/GSensor Test
If any of the SMMI test is fail,please bring your device to the repair center for device checking.

Since you had tried the factory reset, if the situation remain the same, please contact ASUS repair center in the country of your residence:
If it is impossible to access the service center during Covid-19 period, please try Call us: