How to Update iPhone 4 from 4.XX to iOS 5.0/5.0.1 while preserving Baseband

This video is Only for iPhone 4 Users who depend on Ultrasn0w or Gevey Sim to Unlock their iPhones. This whole operation is done with the help of three things. Redsn0w, iOS 5.0/5.0.1 and a Custom iOS 5.0/5.0.1 firmware (also called No baseband Update firmware). Latest version of iTunes 10.5 is also required. Download Redsn0w for Windows: Download Redsn0w for Mac: Download iOS 5.0 or 5.0.1 for iPhone 4: Download CUSTOM iOS 5.0.1 for iPhone 4: PLEASE READ IMPORTANT NOTE: Since this is a Tethered Jailbreak, in order to make it Untether simply install ‘Corona 5.0.1 Untether’ from Cydia after following this video. Doing so will make your jailbreak Untether. What is Tethered Jailbreak: It Means if your battery dies on your iOS Devices or you reboot/restart , then you will get stuck on recovery screen. To get out of it, simply run Redsnow again and go to ‘Extras’. Here choose ‘Just boot’ option and follow the instructions by putting your device in DFU mode. You will be back to normal. Once iPhone 4 is back to normal state now you will have Cydia on your iPhone. Folks that have 01.59 baseband can freely install Ultrasn0w from Cydia to Unlock. And all those who have 03.10 or 04.10 baseband now will be able to Use Gevey Ultra sim again to Unlock their iPhones. Buy it from Make sure to add source in Cydia “”. Then install ‘FuriousMod’ from this source. Also search and install ‘Mobile

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