
06-17-2009, 11:38 AM
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iPhone? More like MyPhone
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Join Date: May 2008
Device + Firmware: iPhone 3gS 32gb 3.1.2 3g 16gb
Operating System: Sony Vaio 3gb/250gb Advent 4211c 2gb /120gb/Tower 2gb/1.25tb Win 7RC/OSX
Posts: 237
Thanks: 6
Thanked 36 Times in 33 Posts
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Backups can only go forwards not backwards, so if your backup is 2.2.1 it will only synch with 2.2.1 firmware or 3.0 firware. So your 2.1 3g will need to be upgraded to 2.2.1 or 3.0 to use the backup with iTunes, or if you have both jailbroken you could SSH the relevant information out of the 2.2.1 iphone and the SSH it back into the 2.1 iphone.
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