I bought a new Motorola me525. Why can't I surf the Internet? I can't even call. I asked for expert advice.

First of all, if you don't register for the network, will you be prompted to register and dial a special number after booting up, and your father will help you brush the machine? Secondly, what is the status of your mobile phone now? Can it be used normally? Can you make a phone call? Have you turned on APN (mobile network data access function)? Did you ask the customer service whether the internet access function is turned on normally?