Tilt won't turn on

[AndyNJ]

My Tilt (running the HTC ROM circa October-ish) won't turn on. It gets to the "smart mobility" screen and the R, G, D numbers pop up, but that's it. won't go past that.

tried with and without the SD and SIM cards and it changed nothing. doesn't matter if it's plugged in or not.

when i go into diagnostics mode, it stops when the screen displays "serial."

i've had the phone for 6 months without any real problems before now and this just kind of came out of no where.

any ideas before i go take a ride to AT&T tomorrow? also, do they have the ability to read my contacts (possibly other data too) if they need to replace the phone?

[Shadowdh]

Actually I have been having this same problem with a Vario III, its just started after 4 months of use, no problems at all, I switched batteries today to see if this makes any difference, it seems to as it came on ok, my problem seemed to be that when the battery power got to around 57-59% then it would switch off... would be difficult to switch back on... if the old battery (1600mAh) was at 100% it worked fine, if it was below 55% it also seemed to work fine... wierd...