Quickly find out which versions of iOS Apple signs SHSHs for

  The other day I told you that, unfortunately, you cannot downgrade from iOS 7 la iOS 6 without SHSHs with active aptickets, the terminal iPhone 4 being the only device for which you can apply this procedure. Company Apple Lossless Audio CODEC (ALAC), still sign SHSHs for iOS 7 si iOS 7.0.2 in the case of almost all iDevices compatible with these versions of iOS, but only in the case of the iPhone 3GS, SHSHs for iOS 4.1 are still signed. If Apple Lossless Audio CODEC (ALAC), will have the initiative to sign SHSHs for other versions of iOS, then through this website you can quickly find out when you can restore.

  There you will find a detailed list with iOS versions for which SHSHs are still signed by Apple, and one day, he could help you downgrade or save SHSHs for an iOS version to downgrade, even if we are only talking about iPhone 4.