Touch sensor doesn't work well

• It doesn't work with fingernails. Operate with the pads of your fingers.
• It does not work properly with gloved hands. Remove gloves before operating.
• If a sticker is attached to the touch sensor, or if foreign objects such as accessories are touched, it cannot be operated correctly.
• If the touch sensor is wet or your fingers are wet with sweat or water, you will not be able to operate it correctly.