Sony Playstation 3 (PS3) Console "froze cant turn" Questions

When you turn on the PS3 you get just a black screen DO YOU NO HOW TO FIX THIS; I WAS INSTALLING A DEMO AND IT FROZE NOW I CANT EVEN PICK MY USER MUCH LESS GET ON THE THING

...the game when it froze up then shut off. now it says power is on but i cant see the screen Turn off the system in the back via the "hard" switch, unplug power cord wait a few minutes then try

...blue, on the odd occation the menu will appear but not often. it did start to play one of my C.D's but kinda froze halfway through the second song, since then it's just a blue screen. cant be ...

...froze. i waited for a while then decided to unplug it. when i turned it back on and put the game in nothing happened. it doesnt play any of my games, but the clock in the corner turns when i put them ...

...i go to turn it on the green light is on for a couple of seconds then shuts off and there is no psp 1001 new my psp 1000 froze up and my network globe is gone cant do anything just got it

...cant turn it back on this happened to mine also and the only way to repair it is sending it in to sony due to it having froze the hard disk. i tried eveything and still had to send it in. sorry for ...

...froze up and I cant turn it off without unplugging it Try resetting the default settings: Try accessing the recovery menu 'safe mode'. Press and hold the power button until the systems shuts off. ...

...froze...it wouldnt turn off any other way apart from the back switch...so have turned it off and now i cant get any picture what so ever...have tried holding the button down for 5seconds and 10 ...

...FROZE WITH THE UPDATE INSRUCTIONS AND YOU CANT GET IT TO DO ANYTHING. IT SAID SOMETHING ABOUT THE OS NOT WORKING WARNIG IS IT CORRUPED To fix this you must download a new OS(operating system) to do ...

...the picture froze and would not resume. Trying different games unit will not play. Set up menu appears when unit is turned on ,but cant get past that. The laser may need to be replaced or ...