Unlock iPhone 3G/3GS OS 3.1.2 using blacksn0w via Cydia (Mac/Windows)

blacksn0w bundled with blackra1n RC3 was released for both Mac and Windows users that can jailbreak and unlock iPhone. Follow the complete guide on how to jailbreak and unlock iPhone 3.1.2 firmware using blacksn0w. If you have already jailbroken your iPhone 3.1.2 firmware using backra1n then follow the simple steps to unlock your iPhone 3G/3GS 3.1.2 firmware.

It is important to note that iPhone 3G and 3GS users who already jailbroken iPhone OS 3.1.2 using PwnageTool 3.1.4 instead of blackra1n can use blacksn0w to unlock their iPhone 3.1.2 firmware. If you are on a 2G iPhone, blacksn0w will not work. You can use PwnageTool 3.1.4 to unlock iPhone 2G 3.1.2. Follow complete instructions on how to unlock iPhone 2G 3.1.2 firmware. We have already shared a tutorial on how to unlock iPhone 3G/3GS on 3.1.2 firmware with baseband 05.11.07 using blacksn0w without Cydia.

Follow simple steps listed below to unlock iPhone 3G and iPhone 3GS running on iPhone OS 3.1.2 using blacksn0w via Cydia.

Step 1 - Start ‘Cydia’ on your iPhone springboard.
Step 2 - Select ‘Manage’ tab at the bottom of your iPhone screen and then select ‘Sources’.

Step 3 - Select ‘Edit’ and then select ‘Add’. Now enter a url source. Type ‘http://blackra1n.com’ and select on ‘Add Source’. Once Cydia has added the source click on ‘Return to Cydia’ button.

Step 4 – Once the installation is completed. Search for ‘blacksn0w’ in Cydia and install it.

Step 5 - Reboot your iPhone. Your iPhone 3G or 3GS on 3.1.2 firmware will be unlocked automatically.

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Tagged as: iPhone, iPhone jailbreak, iPhone Tethering, iPhone Unlock