OK I see you have gone some way to reset the kindle however please follow the procedure below
Please reset the kindle by holding down the on/off switch for 40 seconds (use a watch to time) ignore any messages the kindle may display, then release your finger the kindle should reboot and re-load the operating system, you may have to do this both on and off the charger and upto 4 times before it resets.
Let me know if you need more help
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Please put the kindle on the charger for 40 mins then try again with the above procedure