There is no sound when the HUAWEI Vision is connected to a speaker through AUX

Problem: When the HUAWEI Vision is connected to a smart speaker via an AUX cable, there is no sound from the speaker during music or video playback.

Solution: Use a converter to connect the S/PDIF port of the HUAWEI Vision to the AUX port of the speaker. Then, on the HUAWEI Vision, select the S/PDIF port as the output source by going to Settings > Sound > Output > S/PDIF.