Ok I have had this phone for a few moths without any problems til now.
I normally bring my USB cable to work with me (phone reception is terrible so I normally leave it plugged in all day to keep the phone charged). Until 2 days ago this has always worked. Now when I plug the phone in the phone does not charge, the PC does not see the phone, and the phone does not appear as a device. So far I have tried:
1. Unmounting the SD card and restarting the phone.
2. Rebooting the phone in Safe Mode (to eliminate any third party issues)
3. Reinstalled the software on the PC and trying to re-connect the phone.
4. Reboot the PC.
5. Change the mode of the phone (Mass Media Storage, PC Mode, etc.)
The phone does appear in the Device manager as a phone, but only as an unknown device. The install driver does not seem to help. The USB's work on the PC and the USB on the phone will charge the device with the wall charger. The computer I am using is running XP Pro Service Pack 3. The Driver version on the PC is 4.7, and the phone is stock. Any help is appreciated.
Update: Upgraded the phone to Froyo (2.2) still would not connect. And also tried a Hard reset without any help there either.