If you are experiencing the issue of Bluetooth being connected but there is no sound, please try the following solutions, using BT20A PRO as an example.
Kindly refer to the tutorial video by clicking on the provided link. https://youtu.be/jnSGD5ffx6A
Step 1: Check the connection
Please ensure that the speaker wire is correctly connected and not bent.
Step 2: Select the correct output device and adjust the volume
Please select "Fosi Audio" product as the sound output device, make sure the volume of the audio source device is turned on, and adjust the volume on the Fosi Audio product accordingly.
Step 3: Reset all settings
You need to delete all Bluetooth connection records on all devices, unplug and replug the power cable and restart the connection. Most Fosi Audio Bluetooth products require manual deletion of Bluetooth connection records on the device. For BT20A PRO, you can disconnect the Bluetooth connection by long-pressing the volume button for 5 seconds, and then re-pair.
Step 4: Replace the output/input device
Try using a different Bluetooth device, speaker wire and speaker.
Step 5: There is no sound when only connected to a Windows computer
If it works fine on a phone/tablet or other Bluetooth devices but you cannot select Fosi Audio products as the sound output device on the Windows computer or there is no sound after connecting, you can disable absolute volume by modifying the registry settings.
If you have any questions or concerns, please don't hesitate to contact support@fosiaudio.com.
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