iPhone 3GS Firmware 3.0 baseband 5.11.07 help

[benparko]

Hey,

I have an iPhone 3GS currently jailbroken on firmware 3.1.2 with baseband 5.11.07 and bootloader 06.04. I jailbroke it with Blackra1n and unlocked it with blacksn0w (blacksn0w is in the package installed with blackra1n) to use on any network carrier. Now I am one of the unfortunate users with either an iPhone 3GS or an iPod Touch 3rd Gen that the jailbreak is teathered, meaning that whenever you switch the phone off or it runs out of battery - you have to re-run Blackra1n again to get your phone working again. Now as you can imagine this is very annoying.

So...... I've been looking around at a way to downgrade firmware to 3.0.1 wich is unteathered. NOW.... I know there are a lot of steps to do so. To downgrade firmware to 3.0.1 (from 3.1.2) and then to be able to unlock it, I need to first downgrade the baseband to 4.26.08 (from 5.11.07) so I can use Ultrasn0w to unlock to any carrier. But to downgrade basebands with Fuzzyband, you need to be on a bootloader lower than 5.8.

So.. Does anyone know how I can manage to unlock my SIM to any carrier on firmware 3.0.1 and baseband 5.11.07?? Because I know GeoHotz blacksn0w 5.11.07 unlock is only for firmware 3.1.2...

ANY HELP??

Thanks in advance!

P.S. this is my first post, so I hope I'm in the right section!

[mavrik101]

No way to downgrade the baseband. Fuzzy wont work on newer bb.

[iphonebuddy]

Tethered jailbreak is due to the new bootrom. I dont think downgrade will help you anyway.

[Simtech]

You can not change the bootrom on any phone via firmware, it is a physical chip.

[benparko]

im a little confused because i have the 6.4 bootrom and 5.11.07 baseband and im unteathered and i have a 3gs. the problem wasnt teathered but it was boot looping. i fixed it by making a custom firmware with pwnage tool 3.1.4!



thanks for your help

[budu]

Please check your PM!

[mavrik101]

I have the same problem with boot looping, but I dont own a mac. Any way of getting the custom you created?

[benparko]

I have the same problem with boot looping, but I dont own a mac. Any way of getting the custom you created?

Hey,

Just google it. Once you install the custom firmware, you wont have any problems. works fine for me.