Does ant treasure card activate the mobile phone or display no service?

The mobile phone prompts "no service", which can be detected 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 a good signal and restart the machine;

You can try a new card on your mobile phone. If it works normally, I suggest you go to the business hall to test it. If not, it may be caused by the mobile phone system. You can go to the mobile phone repair point to check your mobile phone.