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Iphone Version : 4
Question Posted by : M Aggarwal
From : India
I have got iphone 4 with iOS 4.3.3 & firmware 04.10.01. I got my phone unlocked through gevey turbo sim. Will i be able to unlock my phone through same sim if i upgrade to ios 5.1 ? In that case what will be the new firmware on my phone? Please guide me.
First you have to create custom firmware using Redsnow . Follow the steps explained below . Supports Gevey Sim and Ultrasn0w (updated version will be released) by preserving baseband .
- Download iOS 5.1 ipsw firmware file
- Download Redsn0w 0.9.106
- Launch Redsn0w and go to Extras > Custom IPSW . Allow it to create the firmware file
- Now put your device in DFU. Go to Extras > Pwned DFU
- Now launch iTunes and press SHIFT + Rrstore and select the custom 5.1 file created in Step 3
Please Note that this will noy jailbreak your iPhone 4 . To jailbreak follow the iPhone 4 Jailbreak tutorial using Redsn0w .
Update : Read How to Unlock iPhone 4 5.1 using UltraSn0w Fixer . Supported basebands and devices only .
Question Edited by Sourish