OnePlus
Turn Bluetooth On or Off auf OnePlus
Bluetooth on a OnePlus phone controls the short-range radio used for pairing headphones, in-ears, smartwatches and speakers. If that radio is switched off, no device shows up when you try to pair, even if the accessory itself is in pairing mode.
Battery drain is the main reason to disable it again after use. An active Bluetooth connection keeps scanning for paired devices in the background, which adds up over a full day.
Where to switch Bluetooth on or off
Go to Open the Settings ➔ Tap on Bluetooth & device connection ➔ Enable or disable Bluetooth. Toggling the switch here immediately activates or deactivates the radio, and any previously paired devices reconnect automatically once Bluetooth is back on and in range.
Use this settings path when you want a stable, permanent state rather than a quick toggle from the notification shade, since some quick-settings tiles only pause scanning without fully turning the radio off.
If your accessory still refuses to connect after enabling Bluetooth here, the device may need to be forgotten and re-paired instead, since a corrupted pairing entry behaves differently than Bluetooth simply being off.