Use the following procedure to reconnect Bluetooth.
1. Turn on the Bluetooth function of your Bluetooth MIDI device
2. Pair the OS with a Bluetooth MIDI device.
Android
2-1. Go to Settings, Apps and Notifications, and App Permissions on your Android and turn on the location settings for Zenbeats.
2-2. Go to [Settings] > [Device Connection] and turn on the Bluetooth function.
2-3. In Zenbeats, go to Menu > Settings > MIDI Input or MIDI Output, tap [ Add Bluetooth MIDI Device ], then tap the desired device from the scanned device list to connect (pair) it.
iOS
2-1. Go to "Settings" in iOS and turn on the Bluetooth function.
2-2. In Zenbeats, go to Menu > Settings > MIDI Input or MIDI Output, tap [ Add Bluetooth MIDI Device ], then tap the desired device from the scanned device list to connect (pair) it.
Windows
Make sure that the driver of the Bluetooth MIDI device is properly installed in Windows and connected (paired) as a MIDI device to Windows.
macOS
2-1. Go to "System Preferences" and then turn on the Bluetooth function.
2-2. Go to "System Preferences", "Audio MIDI Settings", "MIDI Studio", "Configure Bluetooth", and click the Connect of the desired device in the scanned device list to connect (pair).