Sorry if this is posted elsewhere. I am unable to locate the information.
I have an iPhone on IOS 4.1, Jailbroken and unlocked using Gevey Pro. The baseband is 2.10.04. I have SHSHs saved in Cydia and Tinyumbrella.
I'd like to upgrade to the IOS 5, but am concerned about inadvertently upgrading the baseband and being unable to use the Gevey unlock.
Would someone please point me to how I could go about upgrading safely to IOS 5. Thanks.