iPhone 3GS, 4.2.1 iOS, 6.15 Baseband, 6.04 Bootloader

[vital2]

Current specs:
iPhone 3GS, 4.2.1 iOS, 6.15 Baseband, 6.04 Bootloader, jailbroken/unlocked.

What are my options if I used redsn0w to jailbreak with the iPad 6.15 baseband? I'd like to downgrade the baseband to get GPS working again.

[Simon]

No way to downgrade your baseband right now sorry

[vital2]

Is someone working on this? How long to wait until a fix is released?

[i.Annie]

There hasn't been a fix for a while nor does it look like there will be one any time soon. I could be wrong, but I haven't hear any progress on that.

[Simon]

It was mentioned to be in the works a while ago. No progress or ETA have been given though. Not sure if it will ever happen.

[vital2]

Just did some research and looks like work for the ipad baseband downgrade has been postponed until Unlock is out for iPhone 4 Baseband 2.10.04. I see a lot of people starting threads here about the same thing. Maybe this should be stickied?

[reVain]

An unlock for that baseband 02.10.04 has been in the works as early as November 2010, so don't get your hopes up for the baseband downgrade that was rumored.

[FriendlyEllis]

Try Reseting your network settings
GENERAL
RESET
RESET NETWORK SETTINGS

The phone will reboot. When it's done, go outside and hit the maps icon. Cancel anything it says about connecting to networks so that it's totally reliant on GPS.

Worked for me on 6.15bb IOS 4.2.1 greenpoison broken.

Hope it works for you too!

[RochOAR]

Ellis, the maps app doesn't use GPS. It uses cell towers as assisted GPS. the broken GPS feature affects real GOS apps such as Navigon.

[FriendlyEllis]

I know but it still fixes the GPS. I use a London A-Z with GPS and it's very good.

[ThrillHill1]

I have an iPhone 3GS running 4.2.1FW / 06.15.00 BB / greenpois0n broken and ultrasn0w 1.2 unlocked. I'll reinstall TomTom 1.5 and see if I can get it to work using this method...

[FriendlyEllis]

Sorry Guys. I,M WRONG!!!!!

Realised it was picking up on wifi routers, but bang on, I tell you.
Installed TomTom to test GPS and realised my GPS isn't working afterall. Sorry for misleading anyone!!

[i.Annie]

True GPS apps won't work. There are lots of GPS apps in the app store that run off wifi/edge/3G. Read the descriptions and they will usually say something about that.

Tomtom and Navigon are the most common true navigation apps that don't work after the iPad bb upgrade.