RZ09-0330 After Screen Replacement Wont Boot tldr; Replaced screen, laptop won’t post/boot. Can still boot with old screen and can hot swap new screen in while running and it works fine, but post/boot checks won't let my laptop start with new screen. Any help would be greatly appreciated. My Blade Advanced 2020 had an issue with horizontal lines on the bottom of the screen and mirroring the top of the screen. External displays worked fine. I decided to try and replace both the screen and the display ribbon cable. The cable was almost impossible to find, but I found one OEM from another working RZ09-0330, same exact model, I checked all the identifiers on the cable, and everything matches exactly. The screen was much easier to find, and I got a brand-new replacement model # B156HAN12.0 which matches exactly the model # that came in my laptop. I removed the charger and battery and did the replacement. Powered on the laptop, the backlight of the new screen lit up, but nothing. No post, no ability to get into BIOS, no beeps, no boot,