Find My Locked MacBook Air Black screen

I just forgot my MacBook Air 2012 (Sonoma) at a Coffee and locked it via Find My, after I got it back I couldn't start the MacBook only the Boot Sound is there and after there's just a black screen. I can't access recovery mode or boot selector. I tried with a second monitor and plugged it in. I need it for school tomorrow so pleas help me.

submitted by /u/Timi_1543
[link] [comments]