Hello Chris,
If i undesratdn correctly , the upgrade fails on the 7911 , so you went to factory reset by unplug the network cable , press the # button and connect the cable , the handset because blinking and then you released your hand from the # and pressed 123456789*0# right ?
and then there is no affect on the phone right ?
if you did exactly as the above and the phone didn't try to upgrade then you have a hardware problem becasue when you do the above , the phone starts communicating with the TFTP to get a new firmware since with the hardware reset the firmware has been deleted.
Amer