How is it that mobile phones can't always receive short messages?

If your phone can't receive SMS or MMS, you can do the following:

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2. Try to change the network environment;

3, check whether there is a message in the harassment interception:

① FunTouch OS 4.0/iQo Monster UI and above: Enter iHousekeeper- Harassment Interception-(Interception record in the upper right corner)-Information to view interception information.

②Funtouch OS 3. 1 to 3.2: Blacklist interception information cannot be viewed;

3 3 ③Funtouch OS 3.0 the following systems: I housekeeper-harassment interception-information interception view;

4. Whether to download the third-party software with the function of receiving short messages, and if so, try to uninstall the software;

5. Enter Settings-System Upgrade to check whether the mobile phone is the latest version. If not, you can try to upgrade to the latest system. (For some Funtouch OS9.2 models, go to Settings-My Device-iQOO Monster UI Version /Funtouch OS Version to view)

6. Try to replace the SIM card;

7. Restore all settings:

①fun touch OS 9.2/ikomonster UI and above: Enter mobile phone settings-system management-backup reset-restore all settings;

② Below ②Funtouch OS 9.2, enter Settings-More Settings-Backup and Reset/Restore Factory Settings-Restore all settings.