iPhone 12 does not wake up while on call
Recently, I am unable to wake up the iPhone while on call. I may want to end the call, or enter some inputs while connected to an automated voice call and so on, but nothing works.
The phone does not wake up till the call is disconnected from the caller's end.
Now, I use a non-Apple brand back cover, but this was never a problem until recently.
This has been very frustrating for the last few weeks. Request your help.