Chosen Solution

I changed the cracked digitizer on a kindle fire hd. Afterwards it won’t “power on”. I checked with multimeter and it’s getting power to the battery. I plugged it into a desktop and the desktop recognized that the device was plugged in. When I press the power button the screen stays blank. I’ve checked the connections and the LCD is plugged into the mother board. Any other ideas?

you probs damaged a connector, take it a part carefully and look for damages on any connector.