The Fuzzyband application has been updated to now support iPhone 3G on OS 3.0. This app upgrades/downgrade your baseband to 4.26.08 which is the one needed for Ultrasn0w to work.
UPGRADING:
Upgrading is for users that wish to remain on 2.2.1 but also unlock. Upgrading will put the 4.26.08 baseband from 3.0 on the modem so that ultrasn0w may be installed from cydia
DOWNGRADING:
Downgrading works from any version greater than 4.26.08 (currently 5.08.01 is the newest version available, found in 3.1 beta 1). It will put your baseband back at version 4.26.08 which is the current unlockable version by ultrasn0w.
Downgrading only works on phones that have the 05.08 (5.8) Bootloader from the factory. This is a very limited number of phones that were released in the first few weeks of the 3G production cycle.
If you do not know your bootloader then you can run Fuzzyband and it will report the version number for you.
How to get it: Open Cydia and type in Fuzzyband, it is hosted on the BigBoss repo so you will already have it.
Hi there! My iPhone 3g is running under 3.0os but its baseband was updated to 5.08.01 accidentally, I’m trying to use fuzzyband but it’s ver 1.0 which nor support os3.0, how can I update the fuzzy? What should I do?
Well to update it there should be a notification on Cydia that there is an update. What I would do is delete Fuzzyband and reinstall it MAKING SURE that you download it from BigBoss’s repo.