No Power To The Logicboard After Replacing Screen On A Hp Spectre X360

Before I replaced this screen I did powered up the device before disassembly with the power adapter and it booted fine. I did not check the power light at this point.

I received a laptop with cracked screen. I ordered a replacement screen.

When it arrived I dissembled the laptop very carefully by removing the battery, all cables, fan/heatsink and then the logicboard to remove the screen from the mounts.

After all the compoents were removed from the case I mounted the screen and replaced all the components. I reseated all the cables correctly and now there is no power to the unit at all. There is a power indicator light right next to the USB-C ports that powers the device, but the light is not turning on at all when the unit is on battery, or powered by the ac/dc adapter. The power button does not bring the device to life. I'm fearful I have damaged the logic board in someway but I don't see how, I was very careful.

Is there any way to see if the adapter is getting power? or determine what the cause is? On the off chance that the power adapter stopped working I need to see if its outputting power first, but I dont know how to test for power with a multimeter on this adapter since it's usb-c. I can not find any information on it online about testing this kind of adapter.

This is a serious problem for me because Its not my device, I took all precautions and I am on a very limited budget. But since this is a farily new type of model, I could have missed something. Any help would really be appreciated.

 

So I resolved it by discharging the power from the unit. I did not know about discharging the power in this fashion The HP Support person asked me to use the key combination Powerbutton+Mute Key (f7 on this model) for 20 seconds. I did that and the power light went amber after plugging in the power adapter. I turned it on and got a display from bios.