H3.& h6.Component & investigation codes: updated investigation summary: the affected device was received for evaluation.No abnormalities were found on the appearance of the product.After visual inspection, functional testing was performed.As a result of the function test, it was confirmed that the led did not turn off even after removing the blade, confirming the customer's indicated failure.The root cause was the loose switch inside the handle.As a result, the internal switch that was loose was tightened.There was no repair history in the past.This was not a problem related to previous smith repairs.
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