Hi guys! I have Samsung Galaxy S6 DUOS. When the newest version of Android become available for Galaxy S6, I installed it. After about week, home button and lock screen button on my phone started annoying. Screen sometimes turns on automatic and turns off after a couple of seconds. When I try lock screen, sometimes it's locked but in the most cases, screen still light and automatic locked after x seconds. Other problem is when I want lock phone after I do everything what I want, I can't do that. I try press lock button on the different positions (a little bit up, in the middle, down,...) but the problem is same. Same problem is with home button. When I try "escape" from the all of the apps, I press home button but simply it doesn't have effect. I must exit with "back" button. I figured out that in the most cases these problems occur when the phone is little bit cold. More specifically, when I previously did not do anything like sending message, watch video, listen music,... when the processor is "cold". I still have warranity but I would love to know if I can do something with software because I would love to solve problem before that will probably do service. Please, help me. Tnx.