Reset switch chromebook

invalid@example.com (Roberto Cabrera), Roberto Cabrera
Sun, 10 Jun 2018 02:44:35 +0000
Samsung Chromebooks

Good day!

I have a problem with my samsung chromebook XE303C12. When i opened my laptop I got a message saying CHROME OS IS MISSING OR DAMAGED. I already did all the possible fix i found on youtube and google.com/chromeos/recovery site and after ttying several times i got the same error message.
In view of the above, i just wanted to ask if you could tell me where to find the reset switch button on my laptop because i think thats the only way i can fix my laptop.
Thank you.