中文
含义
错误码ERR 2表示USB设备相关故障。该代码表示声吧检测到USB端口异常——可能是USB设备不兼容、供电过载或USB接口物理损坏，导致USB音频播放或固件更新功能异常。
常见原因
- USB存储设备格式不兼容（如NTFS而非FAT32/exFAT）
- USB设备供电需求超过声吧USB端口输出能力（通常仅500mA）
- USB接口内部触点短接或物理损坏，触发过流保护
- USB音频文件编码格式声吧不支持（如DSD、FLAC 192kHz以上）
- USB延长线质量不佳导致信号衰减，设备无法识别
自助排查
- 拔掉USB设备，检查ERR 2是否消失——如消失则USB设备或文件有问题
- 将USB存储设备格式化为FAT32，存入标准MP3或WAV格式文件测试
- 更换USB设备测试，避免使用USB 3.0高速U盘（部分声吧兼容性较差）
- 不连接任何USB设备时仍报ERR 2，可能是USB接口硬件故障需送修
English
Meaning
Error code ERR 2 indicates a USB device-related fault. This code indicates that the soundbar has detected a USB port anomaly — possibly an incompatible USB device, overcurrent condition, or physical damage to the USB port — affecting USB audio playback or firmware update functionality.
Common Causes
- USB storage device format incompatible (e.g. NTFS instead of FAT32/exFAT)
- USB device power draw exceeds the soundbar’s USB port output capacity (typically 500mA)
- USB port internal contacts shorted or physically damaged, triggering overcurrent protection
- USB audio file encoding format not supported by the soundbar (e.g. DSD, FLAC above 192kHz)
- Poor quality USB extension cable causing signal degradation, device not recognized
Self-Check Steps
- Remove the USB device and check if ERR 2 disappears — if it does, the USB device or its files are the issue
- Format the USB storage device to FAT32 and test with standard MP3 or WAV files
- Try a different USB device, avoiding USB 3.0 high-speed drives (some soundbars have poor compatibility)
- If ERR 2 persists with no USB device connected, the USB port may have a hardware fault requiring repair