Have a good day. I have a Huawei p20 pro phone, the network signal works with 5 signals, the latest update has been set to 4 signals but does not work only 1 stands constantly unfortunately. 
Have a good day. I have a Huawei p20 pro phone, the network signal works with 5 signals, the latest update has been set to 4 signals but does not work only 1 stands constantly unfortunately.