Welcome to the Official BlackBerry Support Community Forums. This is your resource to discuss support topics with your peers, and learn from each other. New to the forum? Please visit the ‘Getting Started’ link below.
My tablet would die constantly and wouldn't charge at all and I figured out how to solve this problem. Its kind of a long process but it works every time. Don't charge your tablet or try to turn it on at all leave it alone for about 3-5 days and I know this sounds stupid because you have to wait for so long but its never failed me and I've done it multiple times. After you let it sit for that period of time just simply charge it and it a red led light should come on for about 8-10 seconds then the charging light will come on. After that you should be able to turn it on after about 10 to 20 mins of charging