Problem with Z7 mini Battery or Unbrick ? ?

[Jamfrench]

Hello, the Z7 mini was only into my pocket on the jacket, and when I try to use it after 1 hour, screen stay black , no reaction, I do nothing, I don't understand. I try reset button power + volume, or stay 20 secondes on power, no reaction, and when I put into the computer or charger, now the red circle blinking every 5 sec. please, look at the video attach, thks

https://mega.co.nz/#!M9oWiQDT!eeJp3e...BUdSQxmqo4gisU

help me please !!