this is the thread for how to save ur shsh files what are shsh blobs-shsh are specifically files which will help u to downgrade to the previous firmware after apple stops signing that firmware.These ARE really IMPORTANT FILES. method to save shsh step 1: Download the latest version of TinyUmbrella (Windows, Mac, Linux), and make sure you're running iTunes 10 on your PC or Mac. Step 2: Launch TinyUmbrella and connect your iOS device to your PC / Mac. Now select ‘Advanced Option’. Your ECID number should already be there, and make sure ‘Location’ is set to ‘Cydia’ step3:Now just click on ‘Save My SHSH’ and wait a few seconds Well done, now you got your SHSH blobs saved. (sorry if i made it somewhat unclear) download umbrella from here only:http://thefirmwareumbrella.blogspot.com/ update 1: u need not require to be jailbroken to save shsh file. update 2: its not important on which firmware u are u can still save ur shsh without being on that fw.. updateb 3:If there is a line which contains gs.apple.com in the hosts file, remove it or comment it out then save the file and exit..