Buttons don't work for except the volume. CD will play, but can't turn deck off and it's stuck in demo mode.

I had the same head unit. Did the same thing i just unplugged it and waited a little bit plugged it back in. Clean off the prongs where the face plate plugs into the deck too. worked for me. hope this helps

I think that's Demo mode.
I got stuck there too.

This is what worked for me:

1. Power the radio off (hold the power button in top left corner in for several seconds)
2. Remove face plate
3. Hold in reset 10 seconds
4. Press push-menu dial/button 3 or 4 times
5. Insert cd and hit source to switch to tuner before cd starts

Not all of these steps may be necessary.
I suspect having the power off before the reset button was the important part.

This is what worked for me:

1. Power the radio off (hold the power button in top left corner in for several seconds)
2. Remove face plate
3. Hold in reset 10 seconds
4. Press push-menu dial/button 3 or 4 times
5. Insert cd and hit source to switch to tuner before cd starts

Not all of these steps may be necessary.
I suspect having the power off before the reset button was the important part.

Mine did the same thing, I just took the face plate off and replaced it a couple times, and magically a couple days later it starts working. It does this to me at least once a month, its very irritating. Apparently its a common problem for this model, and as of yet I haven't found any other way to fix it except just waiting for it to start working again. I've decided to scrap mine and buy another player.

Hello jayme84,

To cancel "DEMO" mode on the JVC:

Enter the PSM (personal settings mode) and turn DEMO off.

1) Press and hold "SEL" until the display changes.
2) Use the left/right rocker switch until "DEMO ON" is displayed.
3) Turn the volume knob to select "DEMO OFF".
4) Press "SEL" to exit.

Hope this helps.

I have the same deck and a very similar problem. Mine was stuck in the out position and would beep and move a little but there was no lights or music. I called Alpine and they told me that sometimes the inner sleeve around the deck will pinch the unit a little. I took my unit out of the dash and sure enough the plastic face plate came loose and moved about 1/32 of an inch when I slide it back in place and turned the power back on it worked perfectly. Hope this helps.

yal ever fix them? its the ribbon cable between the face and the circuit board inside the unit the ribbbon cable is very cheap on ebay just google for example cdx-m610 ribbon cable now for the repair close ur face before u take out ur radio assuming u guys still have ur remote to do so theres 3 screws on the bottom of the face when u go to carefully pop the front panel off after pullin them hold ur deck facing down (this will keep ur reset and open buttons from fallin out then theres 4 screws holding in the face's circuit board roll the board out of the face very very carefully pry open the little black lock holding the cable in the connector then open ur radio up pull out the cd player assy same thing with that connector then ull notice the cable goes thru a tension roller pull each end of the cable to unroll it hold it there while removing the cable and sliding in the new one then slowly let go of the roller reattach the cable ends and put everything back together with the face remember its easiest to hold the deck face down those 2 buttons will stay in place hook the top of the face's cover first then put the deck back in ur ride and enjoy these ol sonys r worth a $20 fix specially if they still work good hope this helps yal 

does your stereo have a reset button ?or does it have FACTORY SETTINGS option in the settings menu ?
First try these options ,then write in FixYa with the model number .

I HAVE SAME PROBLEM. AFTER I REPLACED MY DEAD BATTERY MY AIWA CDC-X304 IS STUCK IN THE DEMO MODE. ONLY CD WORKS BUT ALL BUTTONS ON FACING DO NOT RESPOND. ANY SUGGESTIONS HOW TO RESET.

check face plate maybe contact dirty if not well our in trouble sometime it not worth to repair it cheers