Samsung Galaxy Tab E

Problem Description	Symptoms	Solution	Source
No power, hard reset does nothing.		- Perform a power flush by leaving the battery lead unplugged and holding the power button for 25 seconds. Plug the battery back in and then wait 5-10 minutes to power back on. - Test with a known good battery. - LCD and charge port flex cables will sometimes come loose, reseat and test.	Source
Automatically shuts off after screen replacement.		This is caused due to the tablet thinking it has the smart cover attached at all times. A temporary fix is to remove all of the magnets and turn it back on. You may or may not be able to put the magnets back in after a reset.	Source