Hi Guys,

Tomorrow I should have my UK version Iphone 3G, according to the guy I've bought it from, its a week old and activated, also locked to o2.

So its likely to have the latest firmware 2.2.1 and 02.30.03 baseband.

I want to unlock and jail break the phone.

From what ive read on team dev, I need to restore with a custom firmware that preserves the base band.
GOLDEN RULE: If you have a 3G iPhone running 2.2 firmware and you want to keep your ability to use yellowns0w (or the option to use it in the future) do NOT use QuickPwn, and do not use the official ipsw or the iTunes update process without using PwnageTool.
Yellowsn0w will NOT work with the baseband version (02.30.03) that is present in the recent 2.2.1 update. If you want to use Yellownsn0w you will need to create and restore using a custom .ipsw that will allow you to update safely to 2.2.1 without applying the 02.30.03 baseband update. You’ll then have a 3G iPhone running 2.2.1 with an older baseband version that is still vulnerable to yellowsn0w, following these steps ensures that yellowsn0w will still operate.
Please read all parts of this post before downloading and using these tools.
Read items 1, 2 and 3 again and again.
At the bottom of this post are the bittorrent files for the latest versions of PwnageTool and QuickPwn.
These apps are suitable for the recent 2.2.1 release.
The Yellowsn0w version has been updated to 0.9.7. Yellowsn0w is available from Cydia or Installer - this version allows compatibility with pwned 2.2.1 system (not baseband). Again„ remember 0.9.7 yellowsn0w DOES NOT WORK WITH 2.2.1 (02.30.03) directly - you need to be running a ‘pwned’ version of 2.2.1 which didn’t upgrade the baseband during the restore/upgrade.
Users of OS X 10.5.6 will be unable to use DFU mode correctly, please see the note towards the end of this post to easily fix this issue.

I downloaded Custom ISPW iPhone 3G Firmware v2.2.1 w/ 02.28.00 from pirate bay and have the latest version of quickpwn.

So am I right in thinking that I use quickpwn to unlock the iphone using the above custom firmware, then that leaves me free to install yellow snow?

My pc is windows vista 32 bit ultimate.

Sorry if all this is been asked before, ive read lots of posts and im getting dazed and confused.

thanks

goldfish

If you wanted to unlock it you should have checked on the BB before you bought it.
You cannot downgrade the BB (unless it was one of the early ones with BL 5.8) so you are fooked.
A piggyback SIM is your only option until FW3.0 is released and possibly unlocked.

__________________
He who asks a question looks foolish for 5 minutes. He who doesn't ask a question remains foolish forever.

I got a piggy back sim on order, was considering going with these guys for the sake of 24bucks, will save me a truck load of pain.

Going with which guys?
24 bucks is a lot to pay for a piggyback SIM, which one have you ordered and which network do you want to use your phone on?

__________________
He who asks a question looks foolish for 5 minutes. He who doesn't ask a question remains foolish forever.