Huawei SIM is 'SOS only', how to fix it? Follow me. You can do it.
1.Try turning on Flight Mode for 10 seconds and then turning it off. and see if the symptoms disappear.
2.Switch SIM to try another device. or put another sim in If the SIM card is broken, change it with the service provider. [link|https://www.ufa222.info/%e0%b8%aa%e0%b8%a1%e0%b8%b1%e0%b8%84%e0%b8%a3%e0%b8%9a%e0%b8%b2%e0%b8%84%e0%b8%b2%e0%b8%a3%e0%b9%88%e0%b8%b2%e0%b9%80%e0%b8%a7%e0%b9%87%e0%b8%9a%e0%b8%95%e0%b8%a3%e0%b8%87/|...|new_window=true] ( In the event that the device does not lock the SIM )