November 28, 2022
Dev-Team Downgrades 3G iPhone Modem Firmware

Dev-Team Downgrades 3G iPhone Modem Firmware

Posted July 27, 2008 at 12:01pm by iClarified · 24399 views
The iPhone Dev-Team has successfully downgraded the modem firmware on the new 3G iPhone in its first step towards hacking the 3G baseband.

This image is the “About” screen from a 3G iPhone that was bought in a store last week. As you can see the modem firmware version has been successfully downgraded to an older “beta” firmware. This is not an unlock (yet), but it is our illustration of the first progress made with regard to hacking the 3G baseband. We have accomplished this by being able to execute our own code on the baseband that allows us to circumvent security checks and flash the baseband with older, disallowed firmware. Please note this has been accomplished using software only, the iPhone 3G has not been disassembled or hardware modified in any way.

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Dev-Team Downgrades 3G iPhone Modem Firmware
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Charleston - March 19, 2009 at 9:40pm
Hi, Is it possible to downgrade the modem firmware from 02.30.03 to a previous version? People are saying that once the iPhone has been upgraded that it relocks and CANNOT be unlocked. Is this true?
james - July 28, 2008 at 12:56am
I hope this will fix the very weak wifi signal on the iphone!!!
redrum8888 - July 27, 2008 at 11:18pm
does anyone having problems installing apps. ever since the update of the 2.0 firmware and the installer, i can't install anymore games and stuffs. please iclarified do somethings with the installer where we can installer, my firmware is 114. thanks in advances
Draconni - July 27, 2008 at 1:27pm
Go Devs, go!
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