I have downloaded ios 5.1.1 and ios 5.0.1 ipsw files from [Moderator edit: Removed link to other site. We have good download links for firmware IPSWs here at this forum.]
but error pops up from itunes update and restore option?? Is it necessary to downgrade to ios 4.3.3 to update to ios 5.x.x as jailbreak does not work on ipad2 ios 4.3.5?? Kindly help with this issue..