Inspect and clean device buttons with appropriate materials.

Wipe down the circuit board and the buttons with a disposable wipe. Then, use a cotton swab to remove dirt and grime in the crevices of the device.

Disposable wipes designed for cleaning devices are most appropriate for cleaning device circuit board. Other appropriate materials include: water dampened cotton cloth, microfiber cloth, cotton swabs, and disposable wipes made for electronic devices.