Why does my phone network keep changing?

If you see the signal change it means that the phone is switching either between networks or the network can’t keep an HSPA+ connection stable (so it switches back to 3G).

To enable 5G, go to Settings > Connections > Mobile networks > Network mode and select 5G/4G/3G/2G (auto connect) .

Try resolving your experience by resetting your network settings . From your Home screen, simply navigate to Settings > General > Reset and reset network settings. Also, go to Settings > Cellular > Cellular Data Options and disable LTE if enabled.

When 5G speeds don’t provide a noticeably better experience , your iPhone automatically switches to LTE, saving battery life. 5G On: Always uses 5G network when it’s available. This might reduce battery life.