Yesterday I wasted a significant amount of time trying to update my stock AT&T branded HTC Titan from 7.1 (7720) to 7.8. I figured I would provide what I learned in order to get it working.
1. Backup your phone.
2. If you haven't updated your bootloader from the one that shipped with the phone, you need to do so. You'll get an error otherwise.
Instructions and download link here. I had to factory reset my phone before the HTC update program would recognize that the Titan was connected to my PC.
3. Follow the standard instructions from here: http://forum.xda-developers.com/showthread.php?t=1306415, choosing everything from 7720 (7.0.7403.0 - 7.10.8107.79) to the recent 7.8 cabs. I only needed the English language files for my update to work. You can put them all in the root folder for WP7 Update Cab Sender. Hit send.
4. Wait patiently.
5. Setup your phone again.
6. Enjoy.
I'm not responsible if this doesn't work for you, or if it messes up your phone. I just thought it might be helpful to someone not looking to waste their time.
1. Backup your phone.
2. If you haven't updated your bootloader from the one that shipped with the phone, you need to do so. You'll get an error otherwise.
Instructions and download link here. I had to factory reset my phone before the HTC update program would recognize that the Titan was connected to my PC.
3. Follow the standard instructions from here: http://forum.xda-developers.com/showthread.php?t=1306415, choosing everything from 7720 (7.0.7403.0 - 7.10.8107.79) to the recent 7.8 cabs. I only needed the English language files for my update to work. You can put them all in the root folder for WP7 Update Cab Sender. Hit send.
4. Wait patiently.
5. Setup your phone again.
6. Enjoy.
I'm not responsible if this doesn't work for you, or if it messes up your phone. I just thought it might be helpful to someone not looking to waste their time.