by Y-my-R » Thu Aug 24, 2023 5:13 pm
If the console is not connected to the rack unit, then you will ALWAYS get the DSP error message that you see.
You can't fully boot the rack unit, if the mixer is not connected, and you won't even know if there might be other bootup issues with a different error, once the mixer is connected.
So, before doing anything else, I'd suggest to connect the mixer to the rack unit, and then try if it boots fully and works as it should (sans the plug-ins that you're saying that are not authorized).
As for replacing the MackieOS.exe file... you CANNOT get to these files from the booted Mackie rack unit, directly from the Mackie OS. You also can't connect to the "internet" via the MackieOS, but you can connect over the network port via the FTP protocol.
Basically, there's two methods to replace that file (if you're still using the internal "spinning" hard drive in the D8B, and not an easily removable SD card for the boot drive):
1. Physically remove the spinning harddrive from the D8B rack unit, and connect it to your PC via a IDE-to-USB adapter. Then replace the MackieOS.exe file on that drive via the Windows PC.
2. Connect to the D8B via FTP. You'll need an FTP app such as FileZilla to do this, and you'll need to understand how your home network works, and what IP address range it uses, and what IP range is available. (Or use a crossover cable and create a "local network" to connect the PC and D8B directly).
If you're not a "computer network guy" then this process might be a bit challenging, though. I think there's plenty of people on here who tried, but never got FTP working. I also struggled with it for a long time, until I finally figured out what I did wrong for MY specific network setup.
In short, while it's a hassle, if you're not a "network guy," IMO, it's easier to physically remove the spinning harddrive, connect it to a PC via an external IDE to USB adapter, and replace the MackieOS.exe file that way.
But again... before messing with the files on the D8B drive, connect the console and the rack unit with the BFC cable AND the 25 pin data cable, and then check if you still get an error message. If all of that works, THEN try messing around with replacing the MackieOS.exe file.
Best of luck!