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iPhone 3GS iOS 4.1 Easy Unlock

November 30th, 2010 Leave a comment Go to comments

Got an iPhone 3G or 3GS on baseband (modem firmware) 05.xx.xx and had trouble unlocking in the past? God bless the Dev Team for working hard and discovering that the iPad baseband is vulnerable to exploit. I would’ve made a YouTube video with a how-to, but it was too easy to film. Best thing to do if you need to unlock is stick with iOS 4.1 as 4.2.1 may still have issues with unlocking. Get in while you can!

  • 1. Use redsn0w. OSX | Win
  • 2. Make sure your phone is plugged into USB the entire time.
  • 3. Enable the “Install iPad baseband” option and accept the warning.
  • 4. Once redsn0w is done, open Cydia from the phone, then search & install ultrasn0w 1.2.
  • 5. Restart your iPhone & enjoy a jailbroken iOS 4.1, unlocked 3G and/or 3GS!
  • UPDATE: If you’re one of the few experiencing poor battery performance after unlocking, it’s likely because of hacktivation with redsn0w. iOS 4.1 and up is attempting to “phone home” looking for valid push certificates, sucking up data without you knowing. Quick fix is to pop in a valid carrier SIM to activate (borrowed from a friend or family) or install SBSettings from Cydia & turn off any data when you’re not using your phone. There may be another updated solution from Cydia in a few days.