S1538385344802, Feb 11, 2019 : I leave my phone to charging for night, everything was OK. I woke up and took my phone with me to bed. I wanted to use buttons to unlock. They don't work. Unlock button and volume buttons just don't work. Except these everything is fine, same as always been. How can I turn off phone from system by touch? I think it may help. Phone has 100% so kinda hard to wait..