Ironman76 wrote: » Had this issue previously also. Put a new hard drive in my PS4 and could never get the controller to connect. Needed to synchronise it but couldn’t get it to connect with a cable. A mate gave me another cable to try and was able to sync it so I reckon that’s your issue. Try a different cable.
KeithTS wrote: » The battery in the controller may be shot, or the battery management IC could be dead. I haven't seen this before in any of mine though. Do any controllers work with your PS4? You could also try to plug the controller into a phone charge to charge it up and see if it stays connected
KeithTS wrote: » Are you able to power the PS4 on by pressing the PS button on the controller? It sounds as though it's just not communicating with the console. Try the hard reset like sugarman suggested. Turn off your PS4 and unplug it, leave it alone for a few minutes. Plug the PS4 back in. Get a pin and hold to little button on the back on the controller in for 5 seconds or more. Plug a USB cable into the controller and PS4, press the PS button. If that doesn't work, using the good controller navigate to settings -> Devices -> Bluetooth Devices. this should bring up a list of things connected to your PS4, go though them and unpair the bad controller. If there are loads of things in this list I would clear it all and start from scratch. Then do the reset/sync thing again. Are you using a DualShock4 btw?