The paper plane China can't receive the message.

1, signal problem: the paper plane needs to work in the area covered by network signal, and the mobile phone is in the position of weak signal or dead angle, so it can't receive short messages and move to the area with good signal again.

2. Operator restrictions: Some operators restrict short message communication, especially when receiving international short messages, using international SIM cards or verifying in foreign countries. Contact the operator to ask if there are any special restrictions.

3. Mobile phone settings: Some mobile phone devices intercept unknown senders, resulting in abnormal SMS reception. Please check your phone settings to ensure that SMS notifications are not blocked or intercepted.

4. Network delay: Due to network delay, SMS will be received after a certain delay. Please wait patiently for a while, but I haven't received it for a long time. Please resend the SMS for verification.

5. Input error: The mobile phone number entered in the paper plane application is wrong, so you can't receive the SMS naturally. Please check your mobile phone number carefully to make sure you have not entered it incorrectly.

6. Software or system interception: SMS interception or anti-harassment software installed in the mobile phone will intercept the verification code SMS of the paper plane by mistake, check whether there is such software in the mobile phone and adjust the relevant settings.