Screen replacement won't power on
I followed the steps in the screen replacement guide step by step, carefully disassembling everything and then reassembling and plugging everything in. Then when I press the power button, it will make the boot up sound, but nothing else. I took the bottom panel back off to double check all of the wire connections, but still had no luck. Any troubleshooting suggestions? This is my first time replacing a screen.
Edit: Before starting this project, the old screen was cracked. It would still turn on and let you do everything, without being able to see the middle where it was cracked.