'Bricked or Partly-bricked' = 'Pregnant or Partly-pregnant'.
In truth, most units aren't bricked in the literal sense although we all use the term when we mean that the device has a firmware or corrupt files problem. But really if it can be recovered it's not 'a brick'. Unfortunately, some units are irrecoverable and it's often due to a hardware problem. Sometimes it will show a very faint light on the screen if you take the unit into a very dark room and hold the on button down. 37x0 are a hardy lot and hard to 'fully brick'.
Try connecting it with a usb lead to your PC to charge it rather than the car charger for an extended period. If no go ... so .... open it up and disconnect the battery for a while. You know the drill by now Ducky.