I have my phone for at 11 months and I never had a problem with the phone when it comes to charging, however recently my phone charges very slowly. It normally takes like a hour for it to go from 0% to 71%, but now it takes a hour & a half to get from 0% to 50%. Additionally, even if I charge it when its turned off & I leave it alone it still charges slowly to the point where It now takes 6 hours to charge completely. My guess of why I'm having this issue is because of heat. I need a solution, is there anything I can so that my phone will fast charge again?