Black Screen After Firmware Flash

Hi all,

I have a HP Chromebook 14 G4 KIP board. I ran MrChromeBox’s script for the full UEFI ROM. After the install I proceeded to restart and now have a black screen. No back light or anything. I let it sit for about 2 hours and no dice. I have an identical chromebook and debating trying the script on that one. I’m just not sure what went wrong with this install?

Those are your options: Unbricking | Chrultrabook Docs