I am also having this problem. I have tried to get it OTA, the phone never finds it. So I tried to install manually with HTC Sync manager, and Sync manager won't work. I have tried on 2 different computers, one is win7 and the other is win 8. Sync manager opens up and quickly closes, never allowing any interactions. I have attempted to run as admin in older windows compatibility, and still nothing. What gives?
Sent from my HTC One using Tapatalk 4
Uninstall the program. Then do the following.
1.Turn off any antivirus program you may have.
2. Re download and install HTC Sync Manager.
3. Just in case, re download the Maintenance release 8.01.2013.
4. Save it to a location you'll remember.
4a. Attach phone via USB cable -preferably the one that came with your phone.
5. Launch HTC Sync Manager.
6. Find the Maintenance Release on your computer.
7.Following the instructions that are provided on the
HTC page that tell you how to do a manual install, begin
Doing it this way will erase everything
on the phone. Back it up BEFORE you begin the process.
Best of luck.