Update (04/11/2009): Those who have 05.11.xx baseband but have not been able to use fuzzyband’s baseband downgrader due to various reasons including non-supporting bootloader version should have a look at a new unlock tool released for the iPhone 3G and iPhone 3GS by Geohot. It’s known as blacksn0w, it will work for iPhones running the latest firmware 3.1.2 on baseband 05.11.07: http://www.gadgetlite.com/2009/11/04/blacksn0w-iphone-3g-3gs-os-3-1-2/

iphone3gdowngradebaseband

We’ve been increasing contacted about whether it is possible to downgrade the new iPhone OS 3.1’s newly upgraded baseband 05.11.07 on the iPhone 3G / 3GS. At first we were quite convinced that the iPhone Dev Team would soon work something out for those who have mistakenly upgraded their iPhone 3G / 3GS and wait. But now it seems many are now understandably eager and want to be able to use their locked up iPhones again. That’s the bad news, the good news now is that there is a method to safely downgrade your iPhone 3G’s updated baseband from 05.11.07 back to an ultrasn0w unlockable baseband – 04.26.08.

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Update (04/11/2009): Those who have 05.11.xx baseband but have not been able to use fuzzyband’s baseband downgrader due to various reasons including non-supporting bootloader version should have a look at a new unlock tool released for the iPhone 3G and iPhone 3GS by Geohot. It’s known as blacksn0w, it will work for iPhones running the latest firmware 3.1.2 on baseband 05.11.07: http://www.gadgetlite.com/2009/11/04/blacksn0w-iphone-3g-3gs-os-3-1-2/

Update (28/09/2009): Those looking to downgrade the baseband version 05.11.07 from the new iPhone OS 3.1 update should read our guide: How to: Downgrade iPhone 3G baseband – 05.11.07 to 04.26.08

We reported about the possibility of downgrading the iPhone 3Gs’ baseband (which had been unexpectedly affected by the 2.2.1 firmware update) by using a tool from ModMyi called pHaseBanDowngrader a few weeks ago. Thanks to all those who

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