Unable to connect controller

Hello iFixit community;

I have my Playstation 4 which was working perfectly up until several days ago. Out of the blue my controller would not connect. I thought perhaps it had lost connection so I tried connecting using a USB cable, but still nothing. I did a little research online and have tried pushing the tiny reset button on the back of the controller. I have tried restarting the PS4 (unplugging and plugging back in), have tried different controllers and cables but still nothing. It just will not connect. When I plug my controller in, it flashes orange so I know it is charging and somehow has a connection with the console, but when I press the PS button, the controller just keeps on flashing white.

I'm stumped at to what the problem could be and what the resolution is. I don't think the 10XX series would use a different controller than the 12XX series, unless I am mistake there?

If need be, I can open up the console as I am out of warranty unfortunately.

Any help would be greatly appreciated. Thank you!