If I select the silent mode in my phone, the phone flashes after a call arrives. This flashing goes down after the call disconnects, but not always. At times the phone keeps flashing until and unless i unlock the keypad (if it's locked) or check the missed call (if it's unlocked). Is it a firmware problem (I am using version 4.18.) or there any other reason behind it?
If it's a firmware problem, I know what to do, otherwise please provide a solution. (It sucks battery very fast).








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