5G or 4G ?
When my iPhone 12 is switched on it will show whether my mobile signal is 4G or 5G. Does anyone know a way to check what signal is being received after these numbers default to a signal strength icon ?
iPhone 12
Disable WiFi before running this Field Test.
You may check the current LTE band/5G/4G by dialing *3001#12345#* and pressing the call button and then selecting the Serving cell info option
See the pic below which is self-explanatory