I firmly believe that all the functionality that people are saying to turn off does very little. My phone can sit for hours..pulling down email, bluetooth activated, wireless activated, data activated, etc and I would say that in that case battery life is more than sufficient and the phone is very cool to touch. Browsing does make the phone warm and maybe even hot and along with that CPU is obviously suffering. LINE, for such a relatively simple chat app is the second biggest heat producer/CPU user. It really chews through the CPU/battery. The worst offender is HERE. It got so hot yesterday, I'm thinking it started to affect the GPS. After nearly an hours use (plugged in obviously) and towards the end of the route, it started to recalculate after every turn and would briefly say that I needed to do a U-turn after turning on to the road that HERE suggested. At least it didn't shut down like it did the other day, although maybe that would have been better.
I also have the flickering/jumping issues described in its many forms here:
http://forums.windowscentral.com/nok...ing-issue.html. The phone had Cyan on it, but I upgraded immediately to Denim so don't know if Denim is the issue. The CPU usage/heat issue does seem to be somehow screen related. Sounds like there could be a fix on the way so we'll see. Would be nice to see a fully sorted 930.
In every other way, I am happy with the phone (no lifting screen yet *fingers crossed*). The camera is fantastic and gives me 90-95% of the shots I can get with my RX100.