I am running Android 5.0.1 on my Nexus 4. This has started happening recently. Whenever my phone is locked, and I try to unlock, nothing happens on pressing the power button. Initially I thought my battery was getting drained to zero and phone was shutting down, but that's not the case. I need to long press power button and restart my phone forcefully. Some observations are:
- This issue was not there when I was on 5.0.0.
- Also I am finding that this is happening when I play a game and then close the game and leave the phone. Most recently, I have been playing Swish and Drift Zone.
- However, even after uninstalling the issue persists.
Any suggestions/references to overcome this issue are welcome. TIA.