And there another possibility is that the battery is broken, then you need to replace a new one.
Here is a picture guide for you to replace the battery by yourself - Kindle Fire Battery Replacement, but if you found it hard to handle then you need to seek for professional help.
Tap the "Quick Settings" icon and then press "More" "Reset to Factory Defaults".
Please keep this in mind that it will delete all the data on your device, although you can download the purchased apps or books later from Amazon Cloud.
Try charging the tablet with another cord that has a Micro USB connection and see if the device responds.
Normally, the charging cord from your smartphones and tablets(Android Device) will work with the Kindle.Whether you need to repair a broken part or replace a damaged battery, you can follow this video to fix the broken part.After all these attempts to fix it by yourself, if your Kindle device still doesn't turn on, or you think it is too hard to fix the broken part by yourself, you can visit Kindle official help page for more information or contact Kindle customer service to get help. Maybe it will give you a quick response to solve your problems.Fortunately, in most of the time, it can be fixed pretty easy.Here are some tricks to try, including extra solutions when these tricks don't work.If your Kindle has out of One-Year Limited Warranty, or you think it is more convenient for you, then try to contact the local Kindle technicians to repair your device.DIdnt work horribleits no working be c USE I DIDNT RED it because it lookks ton loogn and boring so mth NX MY KIND; E OIS NOW NBROKE TO]GOOD ON hou yh T OIS REALLY BAD ANFY MCATN DEID OF GROELLAN;tpoday so im alreadymad bec a re ieef a dog tehy are cute or naoyhoner cat DIdnt work horribleits no working be c USE I DIDNT RED it because it lookks ton loogn and boring so mth NX MY KIND; E OIS NOW NBROKE TO]GOOD ON hou yh T OIS REALLY BAD ANFY MCATN DEID OF GROELLAN;tpoday so im alreadymad bec a re ieef a dog tehy are cute or naoyhoner cat Jim, did you ever have your problem solved?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.I don't know what happened to ours yesterday, but when we went to turn it on it gets stuck on the fire start up page and goes no further.I've tried the holdingirls hehe start button down & the pressing it again, but nothing.