How to Fix iPhone Bluetooth Not Working?

When Bluetooth stops working, it’s usually a pairing cache issue, a temporary radio conflict, or the accessory being in the wrong pairing mode.

Fix iPhone Bluetooth Not Working

1. Toggle Bluetooth off/on (Settings > Bluetooth).
2. Toggle Airplane Mode on/off (this resets radios quickly).
3. Restart your iPhone.
4. Ensure the accessory is charged and in pairing mode.
5. Forget the device (Settings > Bluetooth > (i) > Forget This Device), then pair again.
6. Update iOS and the accessory firmware (if supported by its app).
7. Reset Network Settings if multiple Bluetooth devices fail.

Common Causes

• Too many saved pairings (cleanup helps).
• Interference from Wi‑Fi congestion (especially 2.4 GHz).
• Accessory supports only older profiles or has a buggy firmware.
• Car systems: old head units often require deleting the phone from the car’s memory too.