How to Unlock iPhone 3G/3GS 3.1.2 Firmware with Ultrasn0w
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iPhone dev team has release PwnageTool 3.1.4 which can jailbreak iPhone 2G/3G/3GS 3.1.2 and iPod Touch 1G/2G 3.1.2 where as geohot’s Blackra1n can jailbreak all iPhone and iPod Touch 3.1.2 OS.
In order to unlock your iPhone 3G & 3GS 3.1.2 you must use Pwnagetool 3.1.4 to jailbreak first and then use Ultasn0w 0.9 to unlock iPhone 3.1.2. If you have already upgraded to firmware 3.1.2 without preserving your baseband then you are out of luck.
Only iPhone3G & 3GS 3.1.2 users with baseband 04.26.08 can use Ultrasn0w to unlock iPhone to use it with any carrier. Below is complete guide on how to unlock iPhone 3.1.2.
How to Unlock iPhone 3G 3.1.2 & iPhone 3GS 3.1.2
1. Download PwnageTool 3.1.4 and follow iPhone 3.1.2 Jailbreak guide.
2. Once you have successfully jailbreak your iPhone 3G/3GS 3.1.2 go to Cydia and click on Manage Tab.
3. Now select Sources and Click on Edit-Add to add following URL source
And click on Add Source
4. After Cydia completes adding of source search for “ultrasn0w” in Cydia and install Ultrasn0w which will automatically unlock your iPhone 3.1.2 OS.
That’s it.
Reader Comments
Seems I tried that (and Blacksn0w), it still says “searching..” at the top and the seleced provider is restricted.
Blackra1n let me install Cydia to my IPhone now and that’s it. it used to install Blacksn0w too…
tried these insrtuctions via Cydia to no avail.
Ver. 3.1.2 (7D11)
FW 05.11.07
Latest Cydia
ITunes 9.0.1
Running Windows XP, and I used Blackra1n.exe to install Cydia to get to install repository Http://repo666.ultrasn0w.com
repository for Blackrain is http://blackra1n.com
after using ultrasn0w to unlock my iphone 3g fw 3.1.2 it says ’searching…” at the top left corner. then goes to “no service.” how do i make it work? please help