Common troubleshooting
At the same time press the two buttons for more than 5 seconds reset, reset should show 7.59, and then more than 5 seconds into 8.00. At the same time the buzzer ring. If you still show garbled, check the welding and the components are installed incorrectly. 2, showing a lack of strokes If it is a whole row is a position of the lack of strokes, check the resistance of 330 ohms, which 330 ohm resistance control of the digital tube 8 pen section, 其他故障陆续更新
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