Few days ago after I upgraded my PS3 to this latest firmware and found no more sound coming from the LCD TV speaker. No matter I restart the PS3, LCD TV, it still cannot work!

Finally I disconnected the power cord connected to LCD TV, and replug it after 1 minute and everythings back to normal now! The problem should be the connection "handshaking" process between LCD TV and PS3 corrupted after update the firmware, in order to re-establish the connection, you must totally disconnect the power of the devices and replug.