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Risks of Unlocking iPhone 3GS

jadog

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Are there any risks in doing an unlock of my iPhone 3GS? I'm on baseband 05.16.05 and on IOS version 5.0.1 and I know that I need to re-flash to baseband 06.15.00 to get off of the AT&T network and be able to use any sim card. I've read in some places however that once you downgrade to the 06.15.00 baseband, then there's no coming back. Is that a bad thing? I've also read where some users complained of losing their GPS. I'm just wanting to make sure before I take the plunge.
 

Jmills87

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Upgrading to the 06.15.00 baseband will permanently void your warranty, there is no way to downgrade to any other baseband once you've done it and you will most likely lose GPS. That being said, it is your ONLY option if you want to unlock that phone.
 

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