I am trying to jailbreak my 3G, it has firmware version 2.2.1 (5H11) and modem firmware 02.30.03 I did a restore on the phone and then started Quickpwn22.1. I have already downloaded the software for this: iphone1,2_2.2.1_5H11_restore

When I open quickpwn and select that file, it indicates it does not match the firmware on my device, (iphone1,2_2.2)

How do I change, downgrade or upgrade the firmware to the right one, or to 5G77?

Thanks.

You need the most recent version of Quickpwn
http://www.hackint0sh.org/forum/f168/64668.htm
Read the posts please.

Cause you are at firmware 2.2.1 with baseband 02.30.03 already you wont be able to use the phone function cause the Yellowsn0w unlock does not wirk with the baseband. Plus - the baseband can't be downgraded to the working version, sorry, you're kind of stuck.
You only can use the iPhone as an ipod for now but need to jailbreak it to do so.

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iPhone 3GS factory unlocked (3.1.2; Blackra1n, Cydia, OpenSSH, custom 3.0 ipcc file (no sig), tethering hack by Dev team, 32 GB)
iPhone 3G (3.0.1; Redsn0w 0.8, Cydia, OpenSSH) 16 GB

i was wondering; so there is no possible way of downgrading the baseband

Not as of today

__________________
Read the stickies and search the forum before posting!
If you want to become a Hackint0sh supporter click here
----------
iPhone 3GS factory unlocked (3.1.2; Blackra1n, Cydia, OpenSSH, custom 3.0 ipcc file (no sig), tethering hack by Dev team, 32 GB)
iPhone 3G (3.0.1; Redsn0w 0.8, Cydia, OpenSSH) 16 GB