turn Wi-Fi or Bluetooth back on to enable those services, even while in Airplane Mode.
Turn on Airplane Mode. Swipe up from the bottom edge of the screen to open Control
Center, then tap . You can also turn Airplane Mode on or off in Settings. When Airplane
Mode is on, appears in the status bar at the top of the screen.
You can also turn Wi-Fi and Bluetooth on or off in Control Center.