Hello, Which model Kindle do you have here pl
Also when you tried the reset, did you wait a full minute without pressing any other buttons to see if the screen would flash and reboot?
Okay taking a look now.
Are you able to swipe down form the top and get access to either "Settings" or "More" from the display?
Hmm, Okay according to Amazon the two possible reboots would be the press and hold the power button or to bring down the Settings MENU. Looking deeper into this now....
Sorry I've got nothing on this one. I will opt out and open the question up to other experts.