Defective Fortigate 40C

Hello,

a friend of mine gave me a Fortigate 40C appliance, that doesn't work anymore, after a Firmware Upgrade has been installed. I'm not very experienced with Fortigate Products, but when I power on the appliance, only the PWR LED and the three bars on the left side beneath the Fortigate Logo lit, all other LEDs - especially the status LED - are off. No link if I try to connect via ethernet. That seems more a hardware problem to me than a problem with the Firmware?

Has anyone experienced a similar problem in the past and perhaps knows a solution?

Kind Regards!

René