Any ideas on how to downgrade baseband from 05.14.02

[Cowboy]

I've got an iphone 3G that the previous owner decided to "accidentally" update to 4.1, even though I explicitly told her not to...

anyways, I have baseband 05.14.02 and I need to downgrade by whatever means necessary. Any ideas?



P.S I can't wait until the 4.2 iOS is released so that the dev team can give us the unlock!

[Sagath]

Cant be done, basebands dont go backwards, even if you move back to 4.02 or some such.

Just going to have to wait a couple more weeks for the 4.2 jailbreak and carrier unlock sorry :(

[Cowboy]

That's what I was afraid of...

I already tried loading 3.1.3 and 4.0 to no avail.

Alright whatever... Just gonna be without a phone for a few days.

[_dangtx_]

as per above. also dont try no more, dont wanna bork it like i did with mine. and no the unbricking techniques dont work. i got a nice paperweight on me desk now :D

[Cowboy]

I'm pretty sure you can unbork it if you tried hard enough. Its not like you shorted the board or something.

[Sagath]

A quick update: 3G and 3GS now have unlocks available for firmwares up to, and including 4.2.1. iPhone 4 firmware 4.1+ is slated as 'soon to follow'...whatever that means haha.

You can find them in the usual locations; iphone-devteams website.

[Synth]

If you are not already jailbroken, you can use Limera1n. The procedure is fairly straightforward.

To unlock, there is a nifty new exploit for iPhones with basebands 05.14 & 05.15. It involves upgrading to an iPad baseband (06.15) using the PwnageTool.

Read more here.

I you do go through with it, please post your impressions/experience. I thought my iPhone was a goner (I have a thread here relating my water + iPhone experience) but it turns out after multiple resets the phone works perfectly still. I have succesfuly jailbroken using Limera1n but have yet to test this new unlock.

Cheers!

Edit: just saw that there are risks involved, including losing GPS.

[Sagath]

I did it on my old 3G for the guy who bought it from me (He updated like a 'tard).

It works perfectly with the 6.15 baseband firmware. No GPS issues on his phone. Unlocked from rogers to Bell, working 100%