Question about Apple iPhone 3G

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Iphone Unlocking Problem

Got two iPhones. Using T-Mobile. Jailbroke using pwnage 2.2.1. Installed latest version of yellowsn0w. One phone is working fine. The other cannot find the network. Both SIM cards work in the working phone...so it isn't the SIM card. I jailbroke and unlocked the non-working phone three times. No change. Also rebooted, turned off 3G network and data roaming, reset network settings, turned on and off the airplane mode (on the working phone, when I do this it takes several seconds to find the network and connect. With the non-working phone, it looks for like a 1/4 of a second and just rests with a single dot. After a minute or two it shows "No Service." Any thoughts??

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Hi,try this way.cydia hit MANAGE,go to sources,you will see repo666.ultrasn0w.com,please instal it,if you did try reinstal..it will work.good luck

Posted on Sep 06, 2009

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If you are trying to upgrade to 3.0 you can not unlock a 3g under 3.0 firmware.

2g solution


3g solution

Posted on Jul 01, 2009

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