Upgrade from iPhone 3GS iOS 4.3.5 BB 05.16.02 to iOS 5.1.1

Upgrade from iPhone 3GS iOS 4.3.5 BB 05.16.02 to iOS 5.1.1

Posted January 16, 2013 at 4:37pm by Akusmo · 3145 views
Hi, I have an iPhone 3GS iOS 4.3.5 BB 05.16.02 (thethered new bootrom) and I want to upgrade to iOS 5.1.1 or newer, whatever it's fine. I don't want to upgrade my BB as I might loose my GPS or WIFI. Can anybody guide me trough the steps of doing this please? Thanks in advance. Akusmo


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