MacBook Air does not load on start up

MacBook Air does not load on start upI have an early MacBook Air. No other info because I can’t start up.

I turn on input password begins to load then stops 2/3 of the way. Then black screen.

Tried

-apple diagnostics mode

and safe mode

and SMC

but there’s absolutely no loading at all.

Start D is not helpful bc it doesn’t take my network password.

Help?