How to change enterprise WeChat voice authentication into SMS authentication

First, make sure whether your mobile phone is operating. Sometimes it is not your mobile phone, even if you log in to WeChat to scan the QR code, you can't use it. You can change the verification method, such as SMS. If you don't change your mobile phone, then you need to check whether you have deleted the information stored in WeChat by mistake, which leads WeChat to think that your mobile phone is the first time to log on to WeChat, so you can't scan the code and change it to SMS verification. If SMS doesn't work, you can also invite three friends you often contact on WeChat to send you an application code for verification. If you still can't, I suggest you consult the WeChat backstage to see what the problem is.