Update (10/05/2009): There is now another tool to downgrade your iPhone 3G’s baseband.
Finally, at last! A baseband downgrade tool for iPhone 3G. Readers who are iPhone 3G users who unexpectedly and accidentally upgraded their iPhone 3G’s baseband during the iPhone firmware 2.2.1 update will be happy to know that ModMyi (not the iPhone Dev Team) have come up with a tool that claims to downgrade your iPhone’s baseband from 02.30.03 back to 02.28.00.
While back in February, the iPhone Dev Team did specifically release a Pwnage Tool for iPhone 3G users so
that they could update their iPhone 3Gs safely to firmware 2.2.1 while preserving baseband 02.28.00. It seemed this message didn’t get across to many in the right time and as a result a significant large number of iPhone 3G users who had their iPhones unlocked during the previous fimware version ended up just having a bricked “iPhone 3G Touch”.
Well the good news have finally come, after two months, ModMyi is now reporting that a tool called pHaseBanDowngrader has just been released that allows iPhone 3G users to downgrade baseband from 02.30.03 to 02.28.00.
Before you go ahead with the pHaseBanDowngrader baseband downgrade tool, everyone should know that from the release notes available for this new tool, its not the simpliest tool in the world to use and therefore use at your own risk (though this is so new that we don’t know yet what the risks could be)! We will keep everyone updated of any updates or new instructions regarding the pHaseBanDowngrader.
ModMyi says:
…this tool has been tested by multiple people and WILL NOT brick your device. if you have bootloader version 5.9 it will not work. you can try but it will not work (still no risk of brick)
Apparently most new iPhone 3G’s come with bootloader version 5.9. You can checkout this link for instructions to check your bootloader’s version. The below is a short quote from the tool’s read me file:
To run the pHaseBanDowngrader, connect via SSH to your iPhone and copy the downloaded folder (phasebandowngrader) into the folder “/Applications” on your iPhone.
Note: The folder MUST named phasebandowngrader with lowercase letters!To run it, open MobileTerminal and type “login”. The user is “root” and password is “alpine” by default. Then type: “cd / Applications/phasebandowngrader/”, then, to run the downgrader, type “./phasebandowngrader
So if you’re interested in having a try at the new baseband downgrade tool for your bricked iPhone 3G, you can download pHaseBanDowngrader using the download links available over at ModMyi. I think its fair to say at this time the pHaseBanDowngrader isn’t definitely going to work but it seems to have great potential. We’ll keep everyone updated with any news!
Update (10/05/2009): There is now another tool to downgrade your iPhone 3G’s baseband.
[...] Update (15/04/2009): For those looking for a baseband downgrade solution for the iPhone 3G, ModMyi have now released a tool which could help you… [...]
[...] Update (15/04/2009): For those looking for a baseband downgrade solution for the iPhone 3G, ModMyi have now released a tool which could help you… [...]
[...] [Via: gadgetlite] [...]
[...] now downgrade from iPhone 2.30 to iPhone 2.28 which will work with yellowsn0w says a report over at gadgetlite. This is achieved by an iPhone 3G baseband firmware downgrade utility know as [...]
I recommed to download from cydia 3g bbd and run it!!! Work great!!!!
Thanks for your help. Nice
is there anything for bootloader 5.9?
[...] 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 tipped us about this news, it looks like there is now [...]
Anything on DownBB for 6.2 bootloader? 2.30.3 to 2.28
Hi Danny, thanks for your comment. We just checked recently, yesterday in fact, unfortunately still no updates to support higher bootloader versions so far. We will upate with a new guide as soon as anything becomes available so do keep asking us or sign up to our feed (http://feeds2.feedburner.com/gadgetlite) to stay updated!
[...] been cursed with Modem Firmware 2.30, you’re kind of screwed. There is a iPhone 3G baseband downgrader here, but I’ve never tried it. So your mileage may [...]
[...] firmware. Even if you roll back to 2.2 or earlier, the baseband will still be the same. Try this: How to downgrade iPhone 3G baseband 02.30.03 to 02.28.00 – ModMyi downgrader tool released! | Gadget… __________________ http://twitter.com/jamesus If I have helped you, don’t forget to tip the [...]
For those who still in firmware 2.2.1 baseband 02.30.03 & bootloader after 5.8, you are no longer doomed.
Fuzzyband (can be downloaded using Cydia) upgraded my iphone 3g into baseband 04.26.08. You need to tap Fuzzyband after installed & it will ask whether you wish to upgrade your baseband firmware.
Next step is to install Ultrasn0w, you may refer to other article on iHackintosh on how to unlock using ultrasn0w.
And voila …. it was unlocked.
I need unlock 3g 3.1.3 bootloader 6.4?