91
I don’t hear when somebody calls/message me, I just see missed calls/
messages notifications on display.
• Please check if Interruptions/Do not disturb mode is activated on your
device. If it is activated you can see a “Star” symbol (for Android OS 5.X
version) or icon (for Android OS 6.X version) displayed on notification
panel. In this case you need deactivate Interruptions/Do not disturb mode.
To do it just press volume up or down key and select “All” (on Android 5.X)
or modify it in Settings > Sound & notifications > Interruptions ( for Android
5.X) or Do not disturb ( for Android 6.X).
My device asks me to enter some password/code/key that I don’t remember
or don’t know due to this device has been used by another person before and I
can’t get this password/code/key from him/her.
• Password/code/key request could be caused by same security feature
activated on this device. You can try to perform Factory data reset, but
remember that if it doesn’t help you need to apply authorized repair center
and it will not be regarded as warranty case.