Hello i need help with my ipad 2. So far i have been using jailbroken 4.3.3 but i want to upgrade to 5.1.1 and jailbreak it. however i am getting multiple errors. i downloaded a 5.1.1 ipsw and when i do option>restore in dfu mode it tells me my device is not eligible for the requested firmware. if i am not in dfu i get error 21 which is normal i think. So i edited my hosts file and got rid of all gs.apple.com lines and it still happens. I get unknown error 1600 when using tinyumbrella tss server. Next thing i tried was upgrading to 6.0 and then trying to downgrade but to no avail. apparently apple is still signing 5.1.1 so i guess that is not the problem. EDIT: I forget to add that i have saved all my shsh blobs from 4.3.3 to 6.0 and i read somewhere that it would be possible to downgrade from 6.0 with both 4.x and 5.x can someone please direct me to a guide or something? the only problem is i will probably ge the device not eligible error again. i successfuly downgraded to 4.3.3 again with TU TTS server and now i have it in DFU mode and it still wont upgrade to ios 5.1.1 or 5.0 someone please help me i have tried to fix this all day and to no avail.