Android
Turn Bluetooth On or Off auf Android
Bluetooth handles more than music streaming to headsets or a car radio. It also transfers files between devices and keeps accessories like keyboards or fitness trackers connected. Before any pairing works, the Bluetooth radio itself has to be switched on.
On Android, the main toggle sits inside the connectivity settings rather than only in the quick panel. If Bluetooth appears greyed out or a paired device will not reconnect, checking this setting directly is more reliable than relying on the shortcut tile.
Open Settings ➔ Connected devices ➔ Connection preferences ➔ Bluetooth. Inside this screen you find the Use Bluetooth switch. Enable it to turn Bluetooth on, or disable it to turn it off completely.
Turning Bluetooth off when you are not using any accessory saves battery, since the radio stops scanning for nearby devices in the background. If you pair devices often, leaving it enabled avoids repeating the pairing steps every time.
If a specific accessory still will not connect after enabling Bluetooth, the issue is usually with the paired device list rather than the radio itself, and forgetting or re-pairing that device solves it faster than toggling Bluetooth repeatedly.