2 HD2's both have problems

[TurboMiles]

One HD2 will not stay running. It started about 2 weeks ago when it was stock. I hard reset it and it is still problematic. If the phone is off for a while you can turn it on and it will boot into the OS and connect to the internet, everything works at this point. Play around on the phone for a little, could be 10 seconds could be 10 minutes, then it will freeze and hang on that screen until you pull the battery. Once in a while it will turn itself off and reboot. Most of the time when it reboots itself it will not get pass the first screen and sometimes vibrate 5-6 time rapidly then hang on that screen.

The other phone is stable and I have no problems with it other then it will not get on Tmobile's network. The wifi is also a little picky. I have flashed 2.15, 2.14 and 2.12 trying to find a radio that would work. It still will not get on the network.

Both phone have been flashed with energy rom.