Recent content by ButterflyBush

Hi, sorry for any grammar mistake. So I've been using Samsung Galaxy S5 (SM-G900H) for 3,5 years. 1. I never updated my OS until a few months ago from its original KitKat 4.4 to Marshmallow 6.0.1. Since then every time I unlock my phone, the screen will become black but I know that it's...