I've never tried to root this phone - its my wifes.

Today we tried installing the OTA gingerbread update. Now the phone is stuck in Bootloader.

I need noob help here. Please tell me specifics on what to do if recovery is possible.

The phone says:
Bootloader
04.02
Err:A5,70,00,00,2F


Batter OK
OK to Program
Transfer Mode:
USB