TinyUmbrella has been updated in anticipation of the imminent release of iOS 4.1.
What's New in This Version: ● Baseband Protection - Updating to 4.1 using TinyUmbrella will protect your baseband from update. THIS ONLY APPLIES TO IPHONE 4!!!!! If you have a 3G or 3GS and you update to 4.1 your baseband will likely be updated. ● SHSH Retrieval from Cydia - If you don't have your SHSH locally, TinyUmbrella will request them from Cydia on-demand; allowing the restore to continue ● Automatically point hosts to Cydia - Once you close TinyUmbrella, it points your hosts file to Cydia (for further baseband protection and update/restores without TinyUmbrella) ● iPod Touch 4G 4.1 support
You can find instructions on how to use Firmware Umbrella to save your SHSH blobs here: Windows:, Mac