We had recently written a article on how to Jailbreak Apple iPhone with Jailbreakme.com tool along with Jailbreaking Steps which would complete the 50% of the job, and if you would like to use the device with any Cellular Network or install cracked applications its recommended to use the Ultrasn0w application. The new version is just around the corner which was recently found on Twitter and this could be released this week.
Using the ultrasn0w 1.0.1 tool you could be able to Unlock any Apple iPhone and use any SIM Card all over the world and there is no need to worry about the carrier or the handset version. It supports upto iOS4 and you can just buy a new Locked device and Unlock it within minutes and use it in any country. The procedure for unlocking is listed below :
Tap on the Cydia Icon on your home screen and then tap on the Manage button. Here you will have to tap on the Sources button followed by adding a new source.
Tap on the ‘Edit’ link on the top right and then, tap on the ‘Add’ button the top left. You will be asked to enter a Cydia/APT URL Source where you will have to enter ‘http://repo666.ultrasn0w.com‘ and then tap on Add source.
Once the source is added you will be able to find ‘ultrasnow 0.93’ in cydia which you will have to install by tapping on the ‘Install’ button which will download 48kb around of data and install it by downloading Mobile Substrate and then preparing it followed by reboot of the device.
The key to this unlock is that you are going to have Cydia application on your device after the Jailbreakme.com Jailbreak following which you need to unlock it by adding its source. Compatible with Apple iPhone 4 baseband 01.59.00 and iPhone 3G / 3GS basebands 04.26.08, 05.11.07, 05.12.14 and 05.13.04.