New TinyUmbrealla Preserves iPhone 4 Baseband When Upgrading To iOS 4.1

iPhone 4 is a little bit different when it comes to baseband upgrades. If you update to a new iOS release, that will upgrade the baseband, you will be able to restore to a previous iOS and downgrade the baseband IF Apple is still signing that iOS. For example, if you update to iOS 4.1, your baseband will be upgraded to 2.10.4. BUT as long as Apple still signs iOS 4.0.2 you can downgrade to it, and the baseband will be downgraded as well to 1.59.00.

Because of that, notcom updated TinyUmbrella which comes with the following changelog:

  • 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)

Download TinyUmbrella here…

NOTE: DO NOT update to iOS 4.1 if you want to preserve your jailbreak/unlock. We will have more info and tutorials in the coming days/weeks



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