Well, I guess I really screwed it up. I have an iPad2 3G running iOS 5.1.1. I used to use iTools to back it up; however, iTools stop working after updating to 5.1.1. Now that JB for iOS 6.1 came out; I wanted to upgrade to 6.1 and JB. I did the original JB on this iPad2 on my notebook (Win7 64bit) which does not have much hard disk space left. So I downloaded the newest version of Itunes to my desktop computer (Win7 64bit) 0Xand connect my iPad2 to it. I got the Itunes can not connect to your iPad2 error (0X8000012). I did some googling. One of the solution offered is to use iFile to delete /var/root/Library/Lockdown folder on my iPad2. Then connect the iPad2 to the desktop PC; that should solve the problem. Unfortunately, when I did this and connect the iPad2 to the desktop PC and run iTunes, I got this message "we are sorry we are unable to continue with your activation at this time." I tried to activate over wi-fi. Same problem. I tried to activate with or without the sim card; same result. I tried to go back to the notebook; same issue. I now have an unusable iPad2. I have looked through Apple support forum; it's pretty useless. If you are under warranty, you can get a replacement. Otherwise, buy a new one. Any suggestion or help is appreciated. Thank you.