PS4 no longer works after 4.5 update

This update is a joke.
I get a screen saying ‘Cannot start the PS4. Connect the Dualshock 4 using the USB cable and then press the PS button.’ Then ‘Connect USB storage device that contains an update file for reinstallation for version 4.5 or later’ I’ve done this and it keeps telling me that it only recognises exFAT versions. But on Playstation you can only download a PUP. I've followed the website instructions.

I’ve tried in safe mode.

Any help will be greatly appreciated!