1, there may be something wrong with the phone. You can try to brush it. Because N79 is an early machine, it has been discontinued, and many things can't be updated, which may be the reason why the mobile phone configuration is outdated. You can check the method of Nokia mobile phone brushing, or you can go to Saipan.

2. Maybe it's the software. See if other software will do this. If you choose to update the software directly from ibook, it may be fake. You can download another one directly from the Internet, or upload it to your computer.