I had 1 that kept doing this, I was out of warranty so I bought a new kindle... It worked great until a few weeks ago when it does but after charging it all I got was black screen with sounds... Again because out of warranty Amazon told me it was basically dead and I’d need a new one... I went on YouTube and found a fix for this where I took the back off the kindle, Disconnected the battery, put it back in and it started working again... I wondered if it would work with my old 1 which kept shutting down... Do I charged it up overnight and then did the fix and it’s working perfectly...
can’t post the you tube link.
Type in kindle black screen... The video is only around 2 minutes long....
I hope this works for you...