If you want a visa, I will give you a visa account number 97500349 and password 00000, which is the account number of 3G portal. After you enter the visa system, enter your account number, then enter your mobile phone serial number, and the certificate will be ready the next day after confirmation. Then, you can bind your account to your mobile phone, download the button wizard on the website, and you can install it directly. Because the account is bound, the software downloaded by your mobile phone will be visa-free in the future, directly.