Chosen Solution
The tablet worked fine except the cracked screen. I install a new screen and put everything back together except the rear plastic part. When I connect a working charger to the tablet, the screen will not power on or show it is charging. I hooked the broken screen back on to the motherboard and I get the same result.
brentkhack , It sounds like a connector or a component may have come loose. Open the device and clean all the connections battery, display, etc., with a Qtip dampened with 90% or better Isopropyl Alcohol, look for any damage pins/terminals and reseat the connectors to ensure good connection and use a magnifier to check for missing, loose, damaged components. Check battery with DVOM to ensure battery is good and charged. Good luck. I hope this helped you out, if so let me know by pressing the helpful button.
