how i solve the different sim card in iphone 3Gs and 4G

Q-how i solve the different sim card in iphone 3Gs and 4G?

A-A very easy simple and safe way in iphone 3gs and 4g.(different sim card)
open cydia/mange/source/edit/add then add source.
Cydia.pushfix.info open it and download sub package hacktivation patch.
after install put other sim. and enjoy.....

best regard
bilal zain