I have multiple MX-3000 and one of them was left for two weeks off the charger and the battery went completely dead. The battery is fine, I switched them between devices and it works fine. Now the MX-3000 won't display anything (or very little). I have tried the reset button, reconnected the battery multiple times. I can connect it to CCS and download the .rcc files and it will take them just fine. Still nothing.

When I plug a good battery in, it will give the button backlights for a few seconds, then everything black for a few seconds, then the button backlights again and a black (although backlit) screen and they never go out.

When I connect it to CCS, it will display the "Connecting to host" screen, then blank. It even gives the "Connected to PC" screen but nothing else.

Any ideas before I trash it?