Thread: Upgraded to 2.2.1? Not AT&T? Heres how to Downgrade! View Single Post
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QuickPWN
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Join Date: Jan 2009
Posts: 344
Posted 01-28-2009, 08:54 PM #5 (permalink)
iPhone 3G users: Do not upgrade to firmware 2.2.1 if you want to unlock your iPhone 3G because it permanently updates your baseband and you can't use yellowsn0w iPhone 3G unlock with the newest baseband.
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