If you can, move to a different location (for example, go outside) and recheck your signal. You may be in an area without coverage if you don’t see a signal data indicator.
If this is the case, turn Wi-Fi off and check back. Note that sometimes this will not display if you have an active Wi-Fi connection.Check that there is a data indicator (for example, 3G, 4G, 5G) next to the signal strength bars at the top of the screen.If it’s already on, turn it off and on again. You may need to select Data usage on some devices before seeing this. Open your Settings app > Wireless and Networks or Connections > Mobile data or Cellular data.Downloads don’t start, time out or remain at 0%.