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Possible causes of failure:
① suspected ESD electrostatic discharge breakdown.
Suggestions:
1), do a good job on site product equipment grounding and other protective measures to eliminate static electricity;
2), product storage requires the use of anti-static materials, good protection;
3), the use of anti-static gloves during installation.
② Check whether the procedures are mixed. For example, the program does not match the product model; the same model product program is not consistent.
Suggestions:
1) Confirm whether the program is custom-made;
2) Whether the program version is consistent with other products of the same model;
3) Communicate with regional application technicians for guidance and use the correct program.