3GS upgrade to ios5

iphonestar

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Mar 5, 2011
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Hi,

I have a US AT&T unlocked Iphone 3GS running on ios 3.1.3 and baseband 05.12.01. I would like to upgrade to the latest ios5 to take advantage of the icloud functionality. I am currently running my phone on O2 network and I don't have the original AT&T sim. Is it possible to do this currently or do I need to wait for some time ?

Thanks for your help !
 

iDonev

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Jan 11, 2011
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Hi,

I have a US AT&T unlocked Iphone 3GS running on ios 3.1.3 and baseband 05.12.01. I would like to upgrade to the latest ios5 to take advantage of the icloud functionality. I am currently running my phone on O2 network and I don't have the original AT&T sim. Is it possible to do this currently or do I need to wait for some time ?

Thanks for your help !

Right now all iOS 5 jailbreaks are tethered, meaning you would have to plug your phone in a computer every time it runs out of battery or you power it down.

If you're okay with that follow this tutorial. Just make sure in Step 4 to go to Expert Mode - General and check the box that says Activate the iPhone.
 

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