Press and hold down the power button for 20 seconds or longer. Then turn the device back on by hitting the power button again. If this doesn’t work the first time, you can try holding the button down for 30 seconds or longer. Most of the time, this will be all you have to do to make the Kindle Fire work again.
People also ask, how do I get my Kindle out of sleep mode?
If you want to disable sleep mode on Kindles just type ~ds into the Kindle’s search bar and hit enter. Doing so will make it so the Kindle will not go to sleep at all. The power button won’t turn it off and neither will using a sleepcover.
Moreover, why is my Kindle Paperwhite not waking up? If the menu restart doesn’t resolve the problem, try a hard restart: Press and hold down the power button for 45 seconds (7-15 seconds for a second-generation Kindle Paperwhite). The screen goes blank. Press the power button again — just a simple press as if you were taking your Kindle Paperwhite out of sleep mode.