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12-04-2007, 01:46 PM #1Downgrading/upgrading
Can I jailbreak/ install Installer.app my friends phone w/out him losing his contacts and other information? Plan on doing a downgrade/prep/upgrade.
12-04-2007, 01:51 PM #2
First sync with iTunes then sync again after your all done
12-04-2007, 01:53 PM #3
The answer is yes you can, but you run the risk that if something were to go wrong (which it really could), then you wouldn't have a current backup.