Joke Collection Website - Public benefit messages - How can I recover if my Apple phone can't receive the verification code?

How can I recover if my Apple phone can't receive the verification code?

Brand model: iPhone 13

System: IOS 15. 1

Take iPhone 13 as an example. This may be caused by a setup problem. Try turning off the Filter Unknown Senders button. There are two steps, and the specific steps are as follows: 1 Enter the setting information option.

2 Turn off filtering for unknown senders.