When users send/Receive messages by flying a letter, if you encounter an inability to send and receive messages, please refer to the following methods for troubleshooting:
1, please confirm the status of the friend receiving the message is normal, if he is down, off flying letter service and do not disclose the status of mobile phone number, may not normally send and receive messages.
2, please confirm your name or message content is sensitive words (reactionary, violence, pornography, etc.), if so, SMS may not be able to send and receive normal.
3, please confirm the good friend relationship is normal, if did not successfully establish the friend relationship, may not be able to send and receive the message normally. It is recommended that the two sides re-establish good friend relationship.
4, please confirm whether you will receive the message of the friend to the blacklist, or he was added to the blacklist. If this is the case, then the user and the friend are not able to send and receive messages properly.
5, please confirm that the friend status of receiving the message is "off-line". If his status is "Offline", then when the friend does not log on to the PC client or the mobile client, the user will not receive the message sent by the letter.
6, if the above methods can not send and receive messages, please go to the official website of the letter "Fly Letter questions I want to ask questions" place feedback, the problem feedback to customer service personnel, flying will help users to troubleshoot as soon as possible, and the results of the investigation feedback to the user. Users may need to provide the following information when they respond to a problem:
A the point at which the message is sent.
b the way to send (if the user is sent through the mobile client, you also need to provide the client's case).
C whether there is a message, if so, please provide the content of the message.