iPhone 3G 2.2.1 bootloader 5.8 unlock

iPhone 3G 2.2.1 bootloader 5.8 unlocking follow steps below.

Great thanks to geohot for his exploit (bl 5.8),your truly rule the iPhone world since the first iPhone released.

Download the file Here.
Upload it to root of your iphone using SSH.


Install Mobile Terminal from Cydia
Open Mobile Terminal run the following commands as root:

1. Type in: su
2. Type in the password: alpine
3. Type in: chmod 755 BBUpdaterExtreme
4. Type in: launchctl unload /System/Library/LaunchDaemons/com.apple.CommCenter.plist
5. Type in: ./BBUpdaterExtreme update -f ICE2_02.28.00.fls -e ICE2_02.28.00.eep
6. Reboot your iPhone

Check under Settings-General to see your (hopefully) downgraded baseband!

How to Check iPhone 3G bootloader

Checking iPhone 3G bootloader is easy follow steps below.

1. Download BBUpdaterExtreme in this LINK Unzip the file. BBUpdaterExtreme is located inside Update_Baseband_02.28.00 folder.

2. Upload BBUpdaterExtreme in root using DiskAid.

3. Install MobileTerminal in Cydia (if you don't have it yet).

4. Once installed, open MobileTerminal.

5. Type the commands below line per line and hitting return button after each line. Take note of the caps.

6. login/type su

7.password: alpine
Note: when you type alpine, nothing is really displayed on screen. This is normal. Just continue typing.

8.type: cd /

9.type: chmod 755 BBUpdaterExtreme

10.type: launchctl unload /System/Library/LaunchDaemons/com.apple.CommCenter.plist

11.type: ./BBUpdaterExtreme queryversion

12.You will see the screen below. As you can see, my iPhone 3G has bootloader 05.09



Credits to geohot for everything.

* Applei.ph and Jaytrix for guide