You are asking about the reason why the button of Mi Home Rice Cooker c1 is not working? The reasons are as follows:

1, the elasticity and contact points of the buttons will be affected by wear and tear, which will affect the triggering and function of the buttons.

2, the accumulation of dust or dirt on the keys affects the contact between the keys and the circuit board, resulting in the keys not triggering properly or malfunctioning.