Ps4 strange behavior, failure to identify control - error code CE-30993-4

Solution 1:

I know this is an old question, but since it's one of the highest search results on google, I thought I may add my experience with this problem. This error code means there's a problem with the bluetooth receiver in your PS4. It doesn't necessarily mean it's fried tho, so don't panic just yet. First turn off your PS4 completely, that means you don't want to put it in Rest Mode, but power off completely. Once it's off, pick your Dualshock, and reset it by inserting a needle or a match into the little hole at the back of the controller, until you feel the button inside, and keep it pressed for 5 seconds. Leave your console off for a few minutes, and then turn it on using the power button on the console. Plug in your Dualshock to the USB cable and press the PS button when asked by the console. Once logged in, try unpluging the USB cable and check if your controller is still working. If it is, then your problem's solved but keep reading, if it doesn't, then you may repeat previous steps, but leave your console off for a longer time, say 30 minutes. If that won't help you either, then I'm afraid your bluetooth receiver is dead and you have to repair your console.

Now, if you've managed to get it working again, please make sure your console is properly ventilated. The reason it stopped working for me was the heat. If you don't take action to ensure your PS4 has proper air circulation you will encounter this problem again and again, until it actually kills your bluetooth receiver and/or wifi adaptor. If your PS4 makes a loud noise, it means it's overheating