Hello bt4346 ,
i am Glad that you asked this question and i have seen on internet lot of people face this issue .
first try checking the charger see if it is fine .
make sure you always use the branded charger to charge it .
* First reboot your phone wait for 1 min
* if possible take off the tablet battery and plug it back otherwise just continue to next step
* check the power outlet and connection (mostly charger jack and cable )
*Plug the charger and wait for 10 min
* Try booting your tablet in safe mode using the power key
* follow [http://tinyurl.com/jx5b4c4|How to Boot phone or tablet in safe mode] and see if you can boot this into safe mode
Please update us more bout the issue
thanks