I have an ipad 2 which is on iOS 5.1.1.
If I try to upgrade to iOS 6.x through iTunes I get errors while upgrading. Tried to re-install 5.1.1 and didnt work. Used tinyumbrealla and ran through all possible options (like updating hosts files, etc) and it didn't work. Tried to downgrade to 4.3.3 and that didn't work either.
I have SHSH blobs saved for multiple versions and I tried updating to all of them through itunes/redsnow and it doesn't work.
When I bought this ipad it was on 4.x. I did upgrade to 5.1.1. I am quite sure that it wasn't an OTA upgrade.
The final thing I tried through redsnow is to reach on this message:
"it seems the apticket flashed on the device cannot be re-used......"
Do I have any option left?? Or I will be stuck on 5.1.1 forever? Any help is highly appreciated