You use to be able to activate and De-activate you PS3 from the computer.
There was a link posted some time ago.. Try a search on activation of the ps3.
You still can. I know I used it to deactivate my old 60GB PS3 which died to ylod. Don't know how this would solve his or her problem.
(1) Log into http://www.qriocity.com/au/en/ with your PSN log in details
(3) Media and Devices
(4) Click the game option, and then Deactivate All.
You can de-activate video without having the system in question. I called the Sony customer service line and told the tech the issue. He asked for PSN id e-mail and a few security questions then took care of de-activating the video. Took about 5 mins on the phone.