Hi
Have you tried to download the DDX3216 File Exchange-software from the Behringer website?
I had this problem too, it's fixed now!
You have to connect the DDX to your computer using MIDI or the com-connection.
So download the DDX3216 File Exchange software and the latest version of the DDX3216 firmware.
Unzip the files into one directory on your pc.
Run DDX3216 File Exchange
Use "Configuration" to let your pc find the DDX. (choose com or MIDI)
You'll see 4 windows in this program.
Find the directory in which you've put the files in the upper right window.
Select the directory by clicking it ONCE.
In the lower right window you'll see all the files in that directory.
Drag the .bex-file into the middle window.
You'll see an alert pop up which asks if you are sure you want to replace the current settings.
Click [YES]
The program will now erase the flash-memory (and all settings!!) from the DDX and replace it with the latest version.
This takes some time, you'll see a time bar on both screens, pc and DDX
Good luck!
Roel
Belgium