I searched but found no answers.
This started about 2 weeks ago. I have a D1; sitting on desk with nothing running, the processor area gets real warm. Kills extended battery by 4 PM with no use.
I took it to VZW (out of warranty period) and did a hard reset. I installed 0 apps on the phone to see if it would fix the issue. No luck. We decided it was a hardware issue because I tried my original battery instead of the extended battery in case it was some type of battery failure. Same thing.
Today: bought a friends D1 from since she left VZW. I put my battery in since it was charged and activated the phone. Same problem. I tried her original battery after charging it and same problem.
It is getting warm similar if you are overclocking it or playing games on the phone.
Also; non-rooted. All stock