Why can't the keyboard be swiped?

- Sep 03, 2019-

The cause of the failure: the keyboard card reader cable is damaged, the card reader module is invalid, and the keyboard master IC program is lost or invalid;

Solution: Use the software exclusion method and the substitution method to check the relevant components in the following order;

1. Re-write the keyboard master IC definition program;

2. Replace the card reader cable;

3. Card reader module;

4, keyboard master IC;

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