Sony Playstation PS3 Safety And Support page 38

The power indicator on the system front is flashing red and the system
does not operate.
, The temperature inside the system has risen too high. Check whether the system
is being used in a hot location or whether the vents are blocked. Touch the power
button on the system front to stop the flashing, and then leave the system unused
until it cools down. After it cools down, turn on the system again.
The system does not recognize content.
, The content may be of a format that is not supported by the system. Content of
types not supported by the system will not be recognized. For information on
supported formats, refer to the online user's guide.
Saved data from a game cannot be copied to the hard disk.
, Copying of certain data is prohibited.
When connecting a USB device, the message "An unknown USB device
has been connected." is displayed.
, The connected USB device may not be usable with the system.
, The device may be compatible with specific software only. If software that is
compatible with the device is started, the device will become usable.
, There may be too many USB hubs connected. Try removing a USB hub.
The USB device is not recognized by the PS3™ system or does not
work properly on the system.
, The connected USB device may not be compatible with the system.
, Try using another USB connector on the system. Depending on the combination
of USB connectors in use, some USB devices may not be recognized by the
system.
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Before requesting service