iPhone 3G on 4.2.1 with 06.15.00 downgrade baseband?

[kriista1234]

I had to unlock via the 06.15.00 iPad baseband a few months ago when that's what was available.

I no longer have a dedicated GPS so I wanted to use the iPhone GPS and it turns out the iPad baseband kills the GPS on the iPhone 3G.

I did some searching but didn't find anything specifically on this.

Is there a more recent firmware/baseband/unlock than 4.2.1 + 06.15.00 for the 3G?

 

[Crystal-RX]

Nothing so far. I think you have to stuck with this baseband for now.

 

[eastercat]

Do a search on bootrom. IIRC, 3G phones with the old bootrom can downgrade bb. However, it's only found in about 10% of 3G phones sold. Can't hurt to try.

BTW, the ipad bb killing gps is a well-known issue. So is the issue of not being able to downgrade bb in normal circumstances.

ETA:sorry, bootloader, not bootrom

 

[kriista1234]

Is 4.2.1 the last 3G firmware?

This 06.15.00 baseband sucks! It wasn't until recently that I even realized the iPhone could do GPS without a data plan (I'm on a 'pay as you go plan') so I didn't think twice about upgrading to the iPad baseband.

 

[kriista1234]

According to this you can downgrade your 06.15.00 if you have an old bootloader.

http://www.youtube.com/watch?v=3gxJrggEVI4

I downloaded fuzzyband and it says I can downgrade (I've not pressed it yet as I don't want to mess things up further).

Anyone try this?

 

[Crystal-RX]

4.2.1 is the latest IOS for 3G.

Since your phone has been jailbroken/unlocked. Download Fuzzyband from Cydia and run it to see if you lucky enough to have a bootloader 05.08 on your phone. If you do, you can use Fuzzyband to downgrade your baseband.

Good luck!

 

[Crystal-RX]

According to this you can downgrade your 06.15.00 if you have an old bootloader.

http://www.youtube.com/watch?v=3gxJrggEVI4

I downloaded fuzzyband and it says I can downgrade (I've not pressed it yet as I don't want to mess things up further).

Anyone try this?

Wow. You are really that lucky person. Yes, use fuzzyband to downgrade your baseband.

 

[kriista1234]

It said I could do it but when I hit downgrade it said it couldn't.

Taking a look at this at the moment:

http://www.ihackintosh.com/2011/01/...-05-13-xx-iphone-3g-with-bootloader-5-8-only/

I installed 3G Fuzzyband (which shows app version as 1.0) where as that link above shows fuzzyband as 4.1

With the 1.0 fuzzyband it didn't show my baseband (it said "null / null"). Gonna see if adding this certificate thing works.

I'm hopefully that fuzzyband didn't tell me I couldn't from the start though.

 

[kriista1234]

Shucks, turns out I'm on baseband 5.09 and can't do it.

 

[Crystal-RX]

Yeah. Fuzzyband only works for bootloader 05.08 or lower.

 

[Applejuiced]

Bad luck dude.

 

[caglarutku]

BB 06.15.00 Bootloader 05.09 to BB 05.13.04 is POSSIBLE!!!

I had to unlock via the 06.15.00 iPad baseband a few months ago when that's what was available.

I no longer have a dedicated GPS so I wanted to use the iPhone GPS and it turns out the iPad baseband kills the GPS on the iPhone 3G.

I did some searching but didn't find anything specifically on this.

Is there a more recent firmware/baseband/unlock than 4.2.1 + 06.15.00 for the 3G?

Yes, it is possible. I just downgraded from 06.15.00 Bootloader 5.9 to Baseband 05.13.04. No problem at all

http://www.redmondpie.com/how-to-downgrade-iphone-3gs-3g-06.15.00-to-05.13.04-baseband-for-unlock-and-working-gps/