TinyUmbrella saves the "SHSH blobs" of your Apple device (i.e. iPhone, iPod, or iPad), allowing you to bypass Apple's servers and downgrade your firmware through iTunes, whenever you want.
tinyumbrella saves the "shsh blobs" of your apple device (i.e. iphone, ipod, or ipad), allowing you to bypass apple's servers and downgrade your firmware through itunes, whenever you want. your device does not have to be jailbroken for tinyumbrella to work.
it allows you to downgrade your idevice so you can do the jailbreak.
ios firmware (to be downgraded to) can be downloaded from here. http://www.felixbruns.de/ipod/firmware/
Backup and Sync System and Hardware
portable save-shsh-blobs jailbreaking ios-downgrade