My HTC M8 is not charging, what could be wrong?

[janith shehan]

htc m8 is not charging please help me

I gave 12v currunt to my htc m8 after that is not charging i changed that usb flex cable also...its not working what do i do ?

 

[Mooncatt]

Re: htc m8 is not charging please help me

What do you mean you gave it 12V current?