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Originally Posted by DaWizard  For Iphone 4 it will not work, you cannot activate using the downgraded firmware cause it will not ask you to activate using the carrier sim. I've tried it many times as it will just fall to 1013 Error. Cause Tinyumbrella is using the Port 80 and it cause itunes to have error in restoring and not allowing users to activate |
when you get error 1013 that mean you are succeeded. now close itune and just use greenpoison try again and again you will succeeded i did more then 6 peace of 4g today with this method
there is one trick when you get error 1013 close itune open green poison bring your device in dfu and jailbreak it as quickly as possible (do it even in seconds)
i did many
regards