Hello, My name is ***** ***** I'll be assisting you. I'm sorry you're having problems. I'm reviewing your details now and will reply shortly.
The problem you're having is often due to the software in the Kindle locking up and it needing to be rebooted. To do this, simply press and hold the power button on the Kindle for 40 FULL seconds, then release and wait a full minute for it to reboot (do no press anything else within that minute).
If this does not cure the issue, try that reset up to THREE TIMES and wait the full minute to see if it reboots.
If you need further assistance let me know. Before you go, PLEASE DO click at least a 3 STAR RATING, at the top of your screen (scroll up the page to get to the STARS). That is how I am credited for my efforts by the site.
It is the internal battery that has faulted, this is what the symbol is referring to
I am really sorry about this and you are going to have to return the Kindle to have this replaced. It will be covered by the warranty if this has not expired, and the replacement will be done at no cost to you. If the warranty has expired, tell me which model Kindle you have and I can tell you where to get the battery from.
I am really sorry about this, and if you have problems, or would like any additional information or assistance, please do not hesitate to let me know.
And if you can take a second to rate my service by clicking one of the stars at the top of the page, then submit, that would be greatly appreciated.