Step-by-Step Guide to Unlock iPhone 3GS running iPhone OS 3.0 using Purplesn0w

Jailbreak iPhone 3GS using purplera1n

As we all know, after releasing the jailbreak software for iPhone 3GS, Geohot also released his unlock method for iPhone 3GS.

Purplesn0w developed by Geohot is an alternative to ultrasn0w developed by the iPhone Dev Team to unlock iPhone 3GS. Geohot claims that his unlocking software actually improves on some of the common issues faced by using the ultrasn0w developed by the iPhone Dev team.

Update:

iPhone
3GS Users can't restore to iPhone OS 3.0
as Apple has stopped signing iPhone
OS 3.0 and iPhone 3.0.1 firmware files after releasing iPhone OS 3.1 so you can no
longer use this guide to jailbreak your iPhone 3GS.

Use this guide instead:

Step By Step Guide to Upgrade Jailbroken iPhone 3GS to iPhone OS 3.1 Using PwnageTool 3.1.3

The improvements mentioned by Geohot are as follows:

  • Corrects the Wi-Fi connectivity bar that does not show full signal strength
  • Reduces the rapid battery drain
  • Fixes some miscellaneous unlock related issues

Please note that Dev Team has also released an updated version of UltraSn0w (0.9)  which also resolves most of the issues mentioned above.

Some important points before we start:

Here is the step-by-step guide to unlocking your iPhone 3GS using purplesn0w:

Step 1: Launch Cydia on your iPhone

Unlock iPhone 3GS using purplesn0w

Step 2: Press the Manage tab at the bottom of the Cydia Home Screen.

Unlock iPhone 3GS using purplesn0w

Step 3: On the Manage section of Cydia, click on the second option named Sources.

Unlock iPhone 3GS using purplesn0w

Step 4: Now press the Edit button displayed on the top right corner of the screen.

Unlock iPhone 3GS using purplesn0w

Step 5: Press the Add button displayed on the top left corner of the screen.

Unlock iPhone 3GS using purplesn0w

Step 6: The screen will display a text box where you have to enter apt.geohot.com as the URL and press the Add Source button.

Unlock iPhone 3GS using purplesn0w

Step 7: Install com.geohot.purplesn0w

Unlock iPhone 3GS using purplesn0w

Step 8: As a final step, press the Home button and power OFF and then power ON your iPhone. You can do this by following the sequence:
i. Press the Home button for about 3 seconds
ii. Press the Power button on your iPhone
iii. Move the slider to the right. This will power OFF your iPhone
iv. While keeping the Home button pressed – press the Power button again to power ON your iPhone.

Unlock iPhone 3GS using purplesn0w

Step 9: You should now be able to insert any SIM card you want in your newly unlocked iPhone 3GS!

If you hit any issues with purplesn0w then you can try UltraSn0w by the Dev Team which also unlocks iPhone 3GS. You can checkout our step-by-step guide to unlock iPhone 3GS running iPhone OS 3.0 using UltraSn0w

Please let us know if you found this guide helpful in or Comments section below.

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