Apple iPhone • Connections • 10–20 minutes
No network connection — Apple iPhone
Check for an iOS update
Why: An iOS update can repair the phone software that controls cellular service, Wi‑Fi, and Bluetooth.
What to do: Connect to any working Wi‑Fi network if one is available. Open Settings > General > Software Update. If an update appears, tap Update Now and follow the on-screen steps. If no connection works, continue to step 2.
What to look for: After the iPhone restarts, check whether the cellular bars, Wi‑Fi symbol, or Bluetooth device returns.
Turn Airplane Mode off and refresh the radios
Why: Airplane Mode turns off the iPhone’s wireless connections, and toggling it can refresh a stuck connection.
What to do: Open Settings. If Airplane Mode is on, turn it off. If it is already off, turn it on, wait 15 seconds, then turn it off again.
What to look for: Wait up to one minute for cellular bars, the Wi‑Fi symbol, or a Bluetooth connection to return.
Make sure cellular data is turned on
Why: Calls may still work while apps have no internet if Cellular Data is off.
What to do: Open Settings > Cellular. Turn on Cellular Data. Under SIMs, tap the line you use and make sure Turn On This Line is on. Do not delete an eSIM.
What to look for: Return to Settings > Cellular and confirm the Cellular Data switch remains green, then open a webpage with Wi‑Fi turned off.
Reconnect to Wi‑Fi
Why: A saved Wi‑Fi connection can stop working after its password or router settings change.
What to do: Open Settings > Wi‑Fi. Turn Wi‑Fi on, tap the network name, and enter its password if asked. If it says No Internet Connection, test another Wi‑Fi network before changing the iPhone.
What to look for: A checkmark should appear beside the network and the Wi‑Fi symbol should appear at the top of the screen.
Turn Bluetooth on and reconnect one device
Why: Testing one known device shows whether Bluetooth itself is unavailable or only one accessory lost its pairing.
What to do: Open Settings > Bluetooth and turn Bluetooth on. Put one nearby accessory in pairing mode, then tap its name under My Devices or Other Devices.
What to look for: The accessory should say Connected. If it does, Bluetooth is working even if another device still fails.
Restart the iPhone
Why: Restarting reloads the wireless services without removing saved networks or accounts.
What to do: Open Settings > General > Shut Down. Drag the slider, wait 30 seconds, then hold the Side button until the Apple logo appears.
What to look for: After startup, wait one minute and check for cellular bars, the Wi‑Fi symbol, and Bluetooth again.
Reset network settings only as a last step
Why: This can repair damaged connection settings, but it removes saved Wi‑Fi passwords, VPN settings, and other network choices.
What to do: Write down any Wi‑Fi passwords you need. Open Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings. Enter the passcode and confirm.
What to look for: After the iPhone restarts, reconnect to Wi‑Fi and test cellular data and Bluetooth again.