Chris McGuire
Web strategy and development, social media strategy, setup and implementation, mobile marketing & development, content development including video production.
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By Chris
Feb 24th 2010
Want to unlock iPhone OS 3.1.3? You can…kind of
If you have an iPhone 3G which is on the latest 3.1.3 OS then you can jailbreak and unlock in most cases. If you have a 3GS…you are totally hooped at this time.
I had to find a solution when Caitlin upgraded her phone by accident and her Rogers iPhone 3GS wouldn’t work with her Fido SIM card. The only way to do it was with my older 3G so we had to switch handsets until further notice (great deal for me!). Im on a Mac but will try and provide alternatives for silly Windows users. These are not tested by me.
Step 1 – Plug your phone into your computer and open iTunes
Step 2 – Right click (cmd-click on Mac) on the iPhone within iTunes and select Backup. This may take a few minutes but make sure it completes or you may lose data when you restore the phone
Step 3 – Download Pwnage Tool for Mac (link) or BlackRa1n for Windows (link). Rather than rewrite them all, you can follow instructions on the links i provided on how to create a Jailbroken IPSW (this is the software that iTunes uses when installing software on the iPhone) and how to restore your phone.
Step 5 – You should now have a clean iPhone which is Jailbroken. It should have the Cydia store on the 2nd screen of apps.
Step 6 – Open Cydia and once it has updated, search for Fuzzyband. This software with down grade the Baseband allowing you to unlock the phone. Install this software.
Step 7 – Press the ‘home’ button and you should see a new icon for Fuzzyband. Open this and follow the instructions. The app will tell you if you can downgrade or not. If you can…good. If you cant…you’ve had it. Nothing to do but wait until the Dev team release their next update.
Step 8 – Now that you have a downgraded baseband, restart the phone.
Step 9 – open up Cydia again and follow these instructions to install Ultrasn0w. Once installed…restart the phone and you should be unlocked.
Feel free to leave me a comment about your experiences. These steps worked for me and ill try my best to help you out.
