Won't charge, won't turn on

It sounds like maybe the battery died.

Help My tablet won turn on what do do

Why Does My Android Phone or Tablet Not Turn On

sounds like you did everything right
could call amazon see if they can help
or do a factory reset to eliminate software problems you will lose all your data
then there is hardware problems dead battery that won't recharge bad cable connection inside kindle

Reset Kindle Fire When it Won Turn on or Charge

it is dead

https://support.google.com/fiber/answer/2903330?hl=en

Check for a bad battery, charger in that order.

Each can be gotten inexpensively on ebay. eBayeBay

First put the charger plug in the Tab, I just tried mine that was sitting on the desk, even though I held the power on button for a long time it would not start. I pluged the charger in so the red charging light is on Tried to start and it worked perfectly. i.e. the voltage level is very critical, if it is a fraction low it won't start.

Mine does that to but all I ever do it just hit the reset button on the back and it turns back on.

Most likely that it's faulty. Sometimes it takes awhile before it charges itself, specially it you drained. But if you left it plugged in for a day and still nothing happened then I think it's gone dead.

Try the following though and see if it helps.

1. Press and hold the power for about 10-15 seconds. or
2. Press and hold the power and the Volume up or Volume down at the same time for about 10-15 seconds.

If nothing happens then I suggest you send your tab for a repair.

Hope it helps.