Best answer by Ryan
View originalConnection problem or invalid MMI code
I have Huawei p20 lite and its not making calls or receiving calls even messages,it keep saying connection problem or invalid MMI code.please help
Hi @Momat ,
I am sorry to hear this! Have you removed & replaced the SIM card and then restarted the phone since this started to happen?
Once that has been done, please navigate to the phone's settings, go to Wireless Networks and then to Mobile Networks and then to the carrier/operator and carry out a manual network search, once done, choose iD Mobile and let me know what happens.
You might also be best trying to check for phone operating system updates too whilst you're in the phones settings.
Ryan
I am sorry to hear this! Have you removed & replaced the SIM card and then restarted the phone since this started to happen?
Once that has been done, please navigate to the phone's settings, go to Wireless Networks and then to Mobile Networks and then to the carrier/operator and carry out a manual network search, once done, choose iD Mobile and let me know what happens.
You might also be best trying to check for phone operating system updates too whilst you're in the phones settings.
Ryan
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