I have 2 routerboard 911L 2nd not working

Hardware MikroTik hardware general
1

I have 2 routerboard 911L 2nd not working. Any sugestions omn how to fix them?
The only thing that lites up is the power on Led. No LAN, no wireless,
I have done the reset proceedure and nothing
Is there anything else I could do?

2

You tried NetInstall?

Regards.