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Free iPad iPhone iPod Touch Jailbreak Support > Jailbreaking an old iphone

Hello.
I have a jailbroken iphone 3GS with a 3.1.2 (7D11) firmware. Presently, I can't see my iphone in my itunes even though the computer recognizes it and Cydia doesn't load, stating it has an untrusted server certificate.

How can I fix this? Any help would be greatly appreciated.
July 16, 2012 | Registered CommenterJae Lee
I would restore it after putting it in DFU mode. Here's a how-to video: http://www.guidemyjailbreak.com/how-do-i-enter-dfu-mode-ios/

After it enters DFU mode, hit the restore button in iTunes.

Let us know if this works for you,

Luke
July 16, 2012 | Registered CommenterLuke Abell
I appreciate the help!! Thank you!
July 17, 2012 | Unregistered CommenterJae
No problem!
July 17, 2012 | Registered CommenterLuke Abell