When buying a 3G Apple iPhone in most markets you are automatically tied to a network such as At&T in the US and O2 in the UK. This means you won’t be able to use any other operators sim card in your iPhone.
DON''T WORRY!Singularity have just launched the excellent unlock card for 3G iPhone that your 3 G iphone can be used freely under different SIM cards operators’ network.
NO JAILBREAK REQUIRED
NO NEED TO DOWNGRADE ANY SOFTWARE/FIRMWARE.
No Technical Knowledge Required!
100% tested with Apple iPhone 3G.
Works with all networks.
Easy to use & hassle free.
Never drop line