YESSIM has claimed that they can unlock iPhone 3Gs using a YESSIM SIM card for all the unlocking purposes which the first in the world. They have video-proof complete with convoluted instructions and a dodgy FAQ on their website. The Sim Unlock was developed in Europe and requires a jailbroken iPhone 3G.
Iphone 3G YESSIM How to Unlock?
1. Jailbreak your phone
2. Make sure your Carrier simcard is valid and catch network(better double check in any other phone)
3. Set your YESSIM as boost mode / 00101 / Patch count 1
4. Able DATA ROAMING in you Iphone
5. Put your Carrier sim and yessim into your Iphone 3G
6. Go to Plane mode then Normal mode on your Iphone 3G
7. In case you still have NO SERVICE kindly go to courier mode, wait for around 20s, an error message will be displayed and you will have network
6. Enjoy... CALL 2G, CALL3G, DATA3G
Apple, Apple iPhone 3G, iPhone 3G unlock, jailbreak, jailbroken, Tips, YESSIM