Hi, I have strange problem with my s3 lte. When I try to lock system the clock freeze and then after etc. One hour when I try to unlock screen clock is in same time. Time is counting only when screen is on. I tryed few custom roms, few stock rom and result is the same... I dont have sync of time.p.s after fresh instaltion rom clock works about half day and then the problem is backing. Pls help me.