i had the issue for a previous update and i had to use "LTE OnOff" and force it to 1X (turn off 4g and 3g) and t found it on 1X??? don't ask me why, but it worked for many of us. but then took 2 hours to download....lol
Try restarting and then try, usually this is caused by a app blocking the app from completing, you are not using a task killer are you? If you are disable it..
My Droid X did the same thing and a hard reset worked for me.... Have you tried booting into safe mode and try update to see if that helped?
Enable Safe mode
katiestupendous wrote:I have a Thunderbolt with 2.2.1 and I know gingerbread was released. So i go into Software Update and check new and it loads for 5 seconds and then disapeers! And i have good 3g service too. Whats going on?
I had that issue when waiting for the update to fix the reboot bug. I eventually was able to get the update about a week later by checking the "check new" at that point.