The DualShock 4 is now compatible without a wire with the last-gen system, although there are still some limitations.
Unfortunately, the PlayStation button, vibration, and Sixaxis tilt controls still do not work. But you can now turn on the PS3 using the DualShock 4’s PS button, which was not possible before.
You can see the step-by-step guide to pairing a DualShock 4 with a PS3 below.
Select “Manage Bluetooth Devices” under “Accessory Settings” in the PS3 settings menu.
Select “Register New Device,” then start the PS3’s bluetooth scanning.
While it’s scanning, press and hold the share and PS buttons on the DualShock 4 at the same time until the light bar starts blinking.
The PS3 should then detect the controller, which will appear as “Wireless Controller.’
Select the controller and complete the pairing.
This will not turn on both a PS3 and PS4 simultaneously if the consoles are close together. The controller must be re-paired with the PS4 before it can be used.