I upgraded to 3.4 (.4?) some time ago. This morning, I noticed that the prime go had been on since I turned it off yesterday. I turned off with the power button, but to my surprise, it didn’t turn off, it just cycled right back on. I did this 2-3 times, every time it cycled back on.
I then held the power button for 30 seconds, and the screen went black, but leds were still on. It is now impossible to turn on or off, and holding the power button does nothing.
I have an upcoming gig, and needless to say, this made me a bit nervous.
Has anybody experienced something similar? Found a workaround?
Is there like a ‘emergency shut down’ procedure one can do in these cases?
You hold down the button and it should shut it down so it seems that there was a quirk with the way it handled that.
Have you tried depleting the battery and getting a fresh start so there’s no power at all in the unit?
I’m not sure but as it’s got a battery, ‘pulling the plug’ still keeps a power source connected so my guess would be to run the battery down and let it shut off so it won’t start (dead battery) and they recharge and try again.
This is how I would try it: Let the battery run empty, plug-in, wait a few minutes, restart, see then if you can reach the settings menu. Go to the About/Update section. There should be a reboot option. Use a formatted USB-stick with Engine version 3.3 to perform the downgrade. Then test everything again. If it then starts and shutdowns properly, it was probably a software issue. Perform your gig with 3.3. Afterward, give it a try with installing 3.4 again and performing some power cycles. If that all doesn’t help, then there is something wonky with the hardware. Does the microswitch still ‘click’?
@MrWilks@Skaratak thank you for replies and suggestions; will try what @Skaratak suggested, and report here. I believe it will take quite some time to drain the battery though, as it is currently only four control leds that are shining.
You could try downgrading to a lower version via a USB cable.
Plug in the power, hold both the load left > & right < buttons then hold the power on button on the back. This will put it into computer USB cable update mode. Pop the USB cable into your computer and do it that way.
@MrWilks thank you for your suggestion. Alas, the holding both load buttons and pressing the power button does nothing. It seem to be in some frozen state, not really off.
Update: After draining the battery, the denon turned on by itself when plugging in the power adapter. Downgrading to 3.3 and 2.4, and doing factory reset, didn’t change anything. I can conclude that it’s some kind of hardware problem.
Open the back side, you have to unscrew all the screws back and bottom, then follow the battery and unplug from the mainboard the 2 plugs, wait few minutes, then plug back, plug the power and see if everything returns to normal.
