It's a very weird issue, after i hold my phone with the screen down it suddenly locks it self and the screen goes off without any reason. And no i did not pressed the power button while im holding it.


The only documented example of this I could find was in Sony phones. Turning off Stamina fixed it for this person. They also recommend clearing the cache for Stamina

  • Turn off Stamina mode from Power management.
  • Go to Settings -> Apps -> All -> Stamina mode -> Force stop, Clear data and restart your phone.
  • Yes had Sony phone too.. And stamina turned on. Maybe this is a battery saving mechanism, usually when you put your phone down you don't use it.. Thanks. – user221573 Apr 19 '17 at 22:36

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