My menu and back button doesn't work please someone help

[Android Central Question]

My j7 sky pro doesn't have a touch key light duration location, it's not under device nor display, the power saving mode has been turned off and it doesnt have a way to turn them back on, this has just recently started and the phone is only 5 months old....please help me

 

[belodion]

Does this persist in Safe Mode?
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