So I downloaded and started the upgrade to .148 today. Got as far as through the backup and went black and my LED is flashing. I've never backed up info in Desktop Manager and don't use it too much so I'm kind of at a loss. Not even sure if I can re-install the old OS. Anyone have any ideas? When I plug it in USB-style to my PC the LED blinks for longer and it keeps connecting/disconnecting when the LED goes through it's blink. Where should I start?
Be patient and follow the directions provided by the links posted above. sometimes it takes a few tries to get the PC to recognize the phone. I suggest just loading the new OS when you finally connect.
I had the same problem with mine. I was doing the upgrade OTA though.
In desperation since I left my cable at work, I took the battery out and let it sit for about 10 minutes. When I tried again it started working fine. Just some something to try for those in a tight situation similar to yours, but without a cable.