Wechat registration SMS has been sent, but not received.

Wechat registration SMS has been sent but not received. Please refer to the following troubleshooting and resolution steps:

1. Check SMS function: First, try to send SMS to others to confirm whether your SMS function is normal. If the SMS function is normal, then the problem may not be on your mobile phone.

2. Check the cell phone signal: Make sure you are in a good signal area, because the signal difference may lead to the failure or delay of SMS sending. If the signal is not good, try to switch to a place with a stronger signal.

3. Check the sending frequency of SMS: If a large number of verified SMS messages are sent in a short time, they may be regarded as spam messages or trigger a security mechanism, resulting in unsuccessful SMS sending. You can try sending it again later.

4. Waiting time: After sending the SMS, wait 15 to 25 seconds, and then return to the registration page for operation, which may help to avoid errors caused by too fast operation.

5. Check the mobile phone number: Make sure that the mobile phone number you are using is not registered with WeChat, and it is not a virtual mobile phone number, because the virtual mobile phone number does not support registering with WeChat.

6. Consider network problems: network instability or failure may lead to the failure to deliver short messages. In this case, you can wait for the network to return to normal before trying to send.

7. Check the receiver's settings: If your message is rejected by the other party, it may be because the other party has set the Do Not Disturb function or joined the blacklist. You can communicate with the receiver to confirm whether the Do Not Disturb function is enabled or blacklisted.

8. Consider the storage space of the mobile phone: If the storage space of the receiver's mobile phone is insufficient, it may also lead to the inability to receive short messages. It is suggested that the receiver clean up the storage space of the mobile phone.

9. Check the mobile phone system or WeChat version: If the receiver's mobile phone system or WeChat version is too low, it may affect the message receiving function. It is recommended to upgrade the receiver to the latest version.

10, other possible reasons: including WeChat server failure or mobile phone hardware problems. In this case, you can try to send it later or contact WeChat customer service for help.