To connect a PS4 controller to Call of Duty Mobile on your mobile device, you can follow these steps:

1. Ensure your PS4 controller is fully charged or connected to a power source.

2. On your mobile device, go to the Settings menu.

3. Look for the Bluetooth settings and turn on Bluetooth.

4. On your PS4 controller, press and hold the PlayStation button and the Share button simultaneously until the light bar starts flashing.

5. On your mobile device, in the Bluetooth settings, scan for available devices.

6. You should see your PS4 controller listed as a device. Tap on it to initiate the pairing process.

7. Once the pairing is successful, the light bar on the PS4 controller will stop flashing and remain lit.

8. Launch the Call of Duty Mobile game on your mobile device.

9. In the game’s settings or controls menu, look for the option to enable controller support.

10. Enable controller support and configure the button mapping to your preference.

After following these steps, your PS4 controller should be connected and ready to use with Call of Duty Mobile. Ensure that your controller is within Bluetooth range of your mobile device for uninterrupted connectivity.