"If you have a Umidigi G9x (or a phone with a UNISOC chip) and got the $5 3G surcharge text, don't throw the phone away! Try this:Dial *#*#83781#*#* to enter EngineerMode.Go to Telephony > VoLTE/VoWiFi.Enable 'VoLTE Whitelist'.Restart and check *#*#...
