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Question 3 The screen is no brightness when do smart setting

1. Check whether the HUB is misaligned , all pins need be inserted.
2. Check whether the cable is connected to the input port of the module.
3. Check the chip of module ,if it is special chip,need update the firmware.
1) Check the word on the chip on the back of the module or directly consult the module manufacturer. After confirming the chip model, download the  firmware from our website,http://www.huidu.cn/en/firmware.html
2) If not sure what firmware to download, contact us directly.

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Huidu Asynchronous LED Controller