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help restoring/jailbreaking 3gs
i have a jailbroken iphone 3gs on 4.2.1, getting no service with my tesco sim, and cydia not working properly. since its on ios 4.2.1 i figured updating it to latest ios and a fresh jailbreak might be a good start. how do i go about updating it and jailbreaking it again? which software to use for untethered jailbreak? will i run into any problems since its an old phone?
also my itunes is linked to my iphone 5, will it be a problem using it to restore the 3gs?
any help appreciated.
i have a jailbroken iphone 3gs on 4.2.1, getting no service with my tesco sim, and cydia not working properly. since its on ios 4.2.1 i figured updating it to latest ios and a fresh jailbreak might be a good start. how do i go about updating it and jailbreaking it again? which software to use for untethered jailbreak? will i run into any problems since its an old phone?
also my itunes is linked to my iphone 5, will it be a problem using it to restore the 3gs?
any help appreciated.