Chosen Solution
As title states it. Problem that a lot of people have yet its different. My controller is brand new (well it was not used but prob sitted in shop for a long time, bough it as damaged). It does charge but only with EXT port, not usb. The light is working. Known solutions, that did not work.
- Its charging cable. - checked
- Its charging PCB - swapped to working one, no resoult
- Its chargign PCB ribbon cable - swapped, no resoult
- Its connector on main PCB to charging PCB - well the light is working so doub it, but still can actually be it.
- Battery is not working - well, it is, it charges and i also swapped it.
- Try reseting ds4 - tried, no resoult. Since it charges through EXT and not USB i assume the fault is on the usb - main pcb line and its probably not charging chip. How and what to check to confirm it?
you are correct more than likely its the main pcb thats at fault, or you need to try testing what ports it will connect to and text their voltage and amps