I'm using my ps4 dual shock controller to connect to the fire stick on the tv so i can play games with it but whenever i try to turn my controller on all it does is flash white and i am using the usb that came with the console and it won't even charge.

Well i'm not gonna suggest you unpiecing your device because you sir probably lack the skills of doing so but what i will suggest to you is to press your share button and you p playstation button at the same time for at least a minute than try charging it again if that solution does work i would advise tring to unopiece the device but by doing carefully and slowly and remembering where each pieces are staying and i want you to take out the eos system and putting it back in and then piece back together and if that solutiuon doesn't work call playstation or email them or go ahead and go and try to repair it or you can  go and BUY A NEW CONTROLLER. hope i helped have a good day bro.