I can't understand this message.

According to the information you provided, the mobile phone prompts "No service", which you can detect in the following ways:

[1] Please confirm whether your mobile phone is set to airplane mode;

[2] Please confirm whether your mobile phone is in arrears;

[3] You can go to a place with good signal to restart the machine;

[4] You can change a card and try it on your mobile phone. If it works normally, I suggest you go to the business hall for testing. If not, it may be caused by the mobile phone system. You can go to the mobile phone repair shop to test your mobile phone.

Common reasons why mobile phones can't answer calls and their solutions are as follows:

[1] Check whether the mobile phone is in arrears, and suggest to pay for recharging;

[2] Check whether the mobile phone is set to call forwarding, airplane mode on, call barring, etc. It is recommended to cancel and try again;

[3] Check whether the function or signal of the mobile phone is normal, and suggest to change the mobile phone or location and try again;

[4] If roaming cannot be used in other places, it is recommended to check whether the local network signal is normal and whether roaming permission has been opened for this number;

[5] Try to restart or replace the mobile phone to see if you can answer the phone;

[6] Take the mobile phone card to the local business hall for testing or replacement.

You can't receive SMS or verification code due to the following reasons:

[1] You can check whether the mailbox is full first. If it is full, please delete some information.

[2] It cannot be received after being deleted. Can change the machine or card to test whether it is a hardware factor;

[3] After eliminating the above reasons, we can try to test whether it can be received in other places to see if it is the reason for the weak local signal.

If the above problems do not exist, please contact the local manual customer service to handle this problem.

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