Error Response: This update file cannot be used. Connect a USB storage device that contains an update file for reinstallation for version 1.50 or later. // Delete the Update file from the USB storage device, and replace it with a valid one.
Solution: Unplug your PS4 and plug it back. To turn on the PS4 into Safe mode, Press and Hold down the power button on the PS4, until the console beeps twice. Connect your controller with a cable and select "Rebuild Database". If this doesn't solve your problem, try contacting Sony directly or a video game repair shop for further help. Please post below if you were able to solve the issue yourself to help others.