199 can't receive the short message of electric signal.

You can try to solve it from the following aspects:

1. Is there a problem with the check card? The method is to turn off the phone, take out the card, and then reinstall it for post-testing.

2. Confirm whether the internal storage space of the mobile phone is enough.

3. Check whether the SMS number is blacklisted. Such as mobile phone housekeeper (Huawei mobile phone preset) and mobile phone housekeeper and other third-party security control applications.

4. Check whether the interception software in the mobile phone intercepts the short message and whether the missed short message can be found in the interception information list. Third-party security control applications such as mobile phone housekeeper (mobile phone preset) and mobile phone housekeeper.

5. If you don't receive commercial information, such as bank information and website verification code. Please contact the relevant service provider to check whether there is a problem on the server side.