Screwed Up iPhone 2.2.1 Baseband

[clin86]

I think i accidentally screwed up the modem firmware while trying to update to 2.2.1 i totally forgot i had yellowsnow installed on my iphone and clicked on the restore to 2.2.1. now my modem firmware is the new 02.30.03, is there anyway i can download the old modem firmware back to 2.2? anyone knows?

 

[polishmacuser]

I think i accidentally screwed up the modem firmware while trying to update to 2.2.1 i totally forgot i had yellowsnow installed on my iphone and clicked on the restore to 2.2.1. now my modem firmware is the new 02.30.03, is there anyway i can download the old modem firmware back to 2.2? anyone knows?

http://blog.iphone-dev.org/

this should explain all your questions

 

[Tokiopop]

You can't use yellowsn0w now. You should've used PwnageTool to create a custom IPWS which wont upgrade the baseband. You'll just have to wait for the Dev Team to patch yellowsn0w for the new baseband. 🙁

 

[clin86]

ahh ok. so is there no way i can downgrade the modem firmware back to the old version?

 

[bytethese]

ahh ok. so is there no way i can downgrade the modem firmware back to the old version?

Nope. Dev team tells you not to upgrade for this reason. 🙂

 

[Tokiopop]

I think there might be a way, but would require you to take the baseband chip out, and use a hex editor on it... 😱

 

[macdim]

I think there might be a way, but would require you to take the baseband chip out, and use a hex editor on it... 😱

Geez.... what's the point of even mentioning it lol 😱

 

[Tokiopop]

Geez.... what's the point of even mentioning it lol 😱

Some phone shops will do this, unofficially of course.