No mobile data service means that the mobile phone has no signal and cannot connect to the Internet. The reasons are: 1. The signal in the environment is not good or it is not in the service area; 2. The mobile phone card is in arrears or expired; 3. . The mobile phone card is installed upside down; 4. There is a problem with the mobile phone system; 5. The mobile phone card is damaged; 6. Check whether the mobile phone supports hot swapping. Some mobile phones need to be shut down before a new card can be replaced.
#The operating environment of this tutorial: HarmonyOS 3 system, Huawei P30 mobile phone.
What does mobile data no service mean?
The reason why the mobile card shows no service
1. It may be that the signal in the environment is not good or the signal is not good. If it is not within the service area, the mobile phone will also display no service. Generally, it is enough to move to a place with a better signal.
2. It is also possible that the mobile phone card is in arrears or has expired. You can call the mobile phone card operator for consultation or go to a nearby business hall with a valid ID card to find out. If you are in arrears, just pay the phone bill.
3. If you are installing the card When installing the mobile phone card upside down, the SIM information cannot be read. Take out the mobile phone card to see if this is the problem.
4. It may also be a problem with the mobile phone system. You can shut down and restart the phone or restart the phone to check the data, or try inserting the phone card into another phone.
5. If it is a new card, check whether the card was damaged when cutting the card. If the mobile phone card is damaged, the information cannot be read, so no service will be displayed.
6. Check whether the phone supports hot-swapping. Some phones need to be shut down before a new card can be replaced.
For more related knowledge, please visit the FAQ column!
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