What do you mean by reading SMS permission?

This means that some software will read your information and send it out.

For example, WeChat needs to send a short message to WeChat when the mobile phone is registered. This is texting.

At the same time, WeChat also has the right to read short messages, because the server will also send back a verification code message, which will be filled in automatically.

If both functions are disabled, the next step cannot be performed.