thank you, can you please explain to me more, because I don't understand how can I work with it !

Thanks for your reply, I have worked with it, but when I executed it, the system appears a message error that the System can't recognize the Dongle ! Unlock !

Hi
I have a Huawei E3131 , and I want to unlock it, but the issue is that I don't know how to use and send a MessageContent like "55534243123456780000000000000011060000000000000000000000000000"

which switches some 12d1:1f01 versions into 12d1:14db with serial type interfaces.

knowing that I work ...