Note : If you are planning on using Gevey SIM, please take a quick peek at this marathon race into chasing the mystery behind Pwned iPhone 3G 2.2 and Gevey SIM issues.
This custom pwned firmware version 2.2 has the older Baseband, Factory default logos (No Pwnapple at boot!) , Pre-activated for non-ATT users, Root Partition size 1000 MB, Cydia and Installer as a bonus to make life simple!
Recommended Steps :
Pwn your iPhone 3G when at firmware version 2.1 using QuickPwn 2.2 either using Windows or Mac(STRICTLY REQUIRED)
Now, download this Custom Firmware v2.2 using the following Rapidshare links (totalling 236.6 MB, use HJSplit to Join these files)
The following ipsw is with 533 MB root partition (DeFacto as it is termed by Johnny)!
No boot logos (standard apple logo)
533mb root partition
No baseband upgrade
Activated for T-mobile
You Tube activated
Use iTunes v8.0.2 on either Windows or Macs (Late 2008 Macbooks included) and hold the Shift (Windows) / Option (Mac) buttons and browse to the .ipsw you just downloaded (and joined) and let iTunes do the rest!
You should now have iPhone 2.2 firmware with all the new features and the best of Open Source offerings (Cydia and its wonderful applications which Apple may never approve in the near future!).