Dumping your SHSH blobs allows you to downgrade your iDevices firmware version to a lower version than you are currently running. This can often times be helpful in case you accidentally update to a firmware version that cannot be jailbroken; as by default Apple does. On the Summary tab, hit Restore. Decline the invitation to create chaos league patch 1.07 a backup and continue anyway. Once the process has completed, leave the device connected until it is activated. You will need to connect your Apple ID at this point. Read More. Thats not to say things dont go wrong, and it might surprise you to learn theres actually a right way to go about doing this. Heres how to remove your jailbreak and restore stock iOS to your iPhone, iPad or iPod Touch. Apple TV 2G Custom 4.1 Firmware 1. Apple TV 2G iOS 4.1 Custom Firmware Packages Installed Cydia OpenSSH. Part 1 Part 2 iPhone 4 Custom 4.1 Firmware 1. iPhone 4 4.1 UNACTIVATED Works for iPhone 4. Your iPhone should appear in iTunes by now, and you can follow the instructions from step 3 above. But What About Backups? There are a lot of tales online mainly anecdotal, which comes with the territory when it comes to jailbreaking that creating a backup of. Below are various different custom firmware files that were created using Pwnage Tool 4.1 download these if you are weary of creating your own. Your device. MUST be in pwned-DFU mode for these firmware files to restore properly(read below). The new Redsn0w, like PwageTool and Sn0wbreeze, lets you create custom firmware to preserve iPhone baseband. You can create custom IPSW firmware with RedSn0w with preserved baseband so you may unlock with UltraSn0w or Gevey SIM.