I just recently activated a Boost iPhone 6s. I upgraded it to the 9.3 Beta 5 and as it was charging through iTunes at about 67% it got dangerously hot. I first noticed it and struck me as odd and then it just got hotter. It cooled down eventually, it may have been syncing the time? Then, today I noticed it next to another 6s and the brightness on mine seemed weaker, even all the way up. So now I just restored to 9.2.1 and the brightness seems to function normally? Anyone else experiencing these issues? Is there a way to download an earlier Beta other than the latest ota? If this thing overheated that badly, should I just exchange it to be safe?