How to fix non-working keys with a pencil for free

How to fix M-Audio Oxygen (and all other digital keyboards) non-working keys with a pencil for free. If this saved your old keyboard please support my work with a donation on my PayPal! Thanks https://paypal.me/michelecompmusic If any key on your keyboard does not work or does not respond correctly to your fingertips, you should do the following: 1) Remove knobs and sliders, open the keyboard, remove plastic buttons, and gently remove rubber strips on electric board; 2) With a pencil gently colors the contacts of the sensors located beneath the rubber strips; 3) Replace the rubber strips on the contacts, reset the plastic buttons, close the keyboard and retrieve knobs and faders; 4) Enjoy it and please like this video! ;)