How to Jailbreak Your iPhone 3GS Using RedSn0w (Windows) [4.3.5]

How to Jailbreak Your iPhone 3GS Using RedSn0w (Windows) [4.3.5]

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MaEsTrO - September 17, 2011 at 7:34pm
Hi, I just baught a 3GS 32Gb Iphone and it's already unlocked in another country, now i'm using it with a different sim which works great but it's not jailbroken ( no cydia installed ), model number is MC133B and it's also Old boot. I was wondering if i jailbreak my iphone will it be locked again? and how can i check if it is factory unlocked. Note that the IOS is 4.3.5 and BB 05.16.02. that's why i'm worried about jailbreaking it coz if it's locked i will be stuck in this unlockable baseband and i'll have to upgrade to BB 6.15 and loose my GPS which i don't want to. Any help?!