Hi
fabio.fcsantosThank you for your asking. Kindly provide the information below so that we could better assist you.
1. Model Name: Settings>System>About phone
Refer to the link below to check the model name by model no. in the link
https://www.asus.com/support/FAQ/1014441/ 2. Your current firmware version
Settings>System>About Phone>Software information
If you try to update to the latest version, does the issue still remain?
3. After reboot, does the situation remain the same?
4. Please 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 Global5. Please check on SMMI test
Calculator> type ".12345+=">SMMI TEST>Single Test>Proximity Sensor Test