TruongHan
Super V.I.P
Thấy được trang này,không biết thật hư như thế nào,cho anh em tham khảo xem
http://www.downgradeiphone.com/
Downgrade your iPhone 4 , 3GS , 3G.This is the definitive method to downgrade the baseband of your iPhone. We can do the downgrade of the baseband 01.59.00 (with iPhone 4 baseband 4.11.06, 4.11.07, 4.10.01, 3.10.01, 2.10.04).
The downgrade of the iPhone 3GS baseband of 5.12.07 (iPhone 3GS baseband with 5.13.04, 5.14.02, 5.15.04, 5.16.02, 06.15.00, 5.20.00).
We can do the downgrade of the baseband 05.11.07 (with iPhone 3G baseband 05.12.07, 05.13.04, 05.14.02, 05.15.04, 06.15.00) Our software is compatible with all firmware (including 4.3.3/4.3.4/4.3.5) and will unlock iPhone 4 models as well as all the others (3G, 3GS, & 2G) within just a few minutes. Now open the Downgrade app installed on your iPhone springboard. DowngradeiPhone will display the current Bootloader, Baseband and firmware version of your iPhone. Tap the downgrade button to downgrade Baseband
http://www.downgradeiphone.com/