Chosen Solution
The Insignia Flex 11.6 will not power on after charging the battery and unplugging the ac adapter. However if I leave the ac adapter plugged in the device powers right on.
Put the tablet on the charger for a full 2 hours. Ensure the tablet is still connected to power and press the “Reset” button on the back of the tablet with a pin or paperclip (an ink pen likely will not reach inside the recessed hole, you will feel a button pressing when done correctly). The tablet should automatically restart, assuming it was charging prior to the reset. – Community@Insignia
my insignia 11.6" tablet did not have a reset button or pin hole, but what worked for me is holding down the power button for 30 sec. then releasing it and wait 2 min. then repeat the process over again. I was told to do this 3 times but it actually restarted on the second time. I was really worried as well cause it was fine last night the nothing I did would work. the person who told me to try the trick above. said that if the tablet gets hot it will shut down to protect its self. and not power back on til cooled. however my tablet was 2 days old and I’m sure it was not hot. but it still fixed it so who knows…hope this helps!
My flex 11.6 tablet stuck on logo screen