- Insert U-Disk rather than the USB Cable.
- Switch to the correct input mode (BT/USB).
- Test other U-Disk.
- Store MP3 music format.
- Do not create a folder under the U-Disk.
- The U-Disk capacity should not exceed 32 GB, and each file should be smaller than 100MB.
- Format U-Disk to FAT32 on the computer.
- Note: BL20A: Blink red light when playing ; BL20C: Solid red light when playing
Kindly refer to the tutorial video by clicking on the provided link. https://youtu.be/RwN4idFfNG4
If you have any questions or concerns, please don't hesitate to contact support@fosiaudio.com.
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