what do I do worng?

[urison]

I pledge my pine-A64 via the Kickstarter project
and got it almost a year ago.
it was the 2GB version
to be honest? i was really excited.
it came with the original power supply, the Bluetooth\ WiFi module, Air mouse keyboard and a HDMI to DVI adapter

BUT....

I build a 32 GB microSD (SanDisk class 10) card with one of the OS
connect everything to a computer screen (Xerox)
connect the Pine A64 to the power supply the red led switch on but nothing happened.
I install a new OS but still nothing..

I put everything aside and forgot from it.

few days ago I lookd for a Android OS system and try it again
this time with a smaller computer screen ASUS one
a HDMI to DVI new cable a new 32 microSD card (Kingston class 10)

and used the "PINE64 Installer" to build the mirror
I try few OS
Android 6, 7 , Remix

but It still does not work


so,
what do I do wrong??

is it possible that the board is damage?

thank you Uriel