Automatically flash on while keeping in pocket

[AC Question]

Automatically flash on don't know how, and phone gets hang. Ringtone is not working properly mean if my phone is in normal mode doesn't ring.

 

[B. Diddy]

Welcome to Android Central! Which phone? Do you mean that the phone's screen turns on while it's in your pocket, or are you actually referring to the camera LED flash?

If you tell us which phone, we might be able to suggest a cache partition wipe. Otherwise, try booting into Safe Mode, which temporarily disables all 3rd party apps. On most Android devices, while powered on, press and hold Power until the Power Off menu appears. Press and hold the Power Off selection until the Safe Mode prompt appears. Tap OK.

If the problem disappears in Safe Mode, then something you installed is causing the problem. You may have to uninstall apps one by one until the problem disappears. If the problem persists in Safe Mode, then it's more likely to be a hardware or firmware problem.