I swear to god I cannot be the only one getting all these problems. My phones hot, low power mode barely helps, battery drains so fast, and more recently whenever I use Emojis, the app that they are used in hangs for about 5 seconds then the message finally sends. Would a reset all settings help here? Will that act like a clear cache kinda thing. I got a feeling that the actual software is bugged on my phone. In that case, is it worth backing up my 9 b4, DFUing a clean 8.4, then direct updating to 9 b4 then restore from backup? I need help, because this is killing me and I need my data that I've got on iOS 9.