Unlock iPhone 3GS using UltraSn0w

Ultrasn0w only software for SIM unlock iPhone 3G and iPhone 3GS using UltraSn0w. Unlocking your iPhone 3GS will allow you to use your it with any cellphone carrier in the US and in the world, assuming they use SIM cards.

Unlock iPhone 3GS Guide:

1. You must to jailbreak your iPhone 3GS. It should take about 10 minutes and it is a necessary step to be able to unlock your iPhone.

2. After jailbreaking your iPhone 3GS, follow these simple steps to install UltraSn0w:
# Run Cydia or Icy
# Please add the repo repo666.ultrasn0w.com to Cydia or Icy. That last “o” is actually the number zero “0”! If you use the letter “o” you’ll get an error.
# Search for ‘ultrasn0w’ in cydia or icy and install ultrasn0w
# Reboot your iPhone 3G
# T-Mobile USA users should disable 3G before using ultrasn0w

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