Since you likely can't find a direct download link, here is your recovery path:
A 94V0 certified board implies controlled impedance traces. In a Boardview file, you will see differential pairs (USB_DP/DN or PCIE_TX_P/N). If you are repairing a board with a faulty NVMe SSD (connected via PCIe), you will use the Boardview to check continuity from the M.2 slot back to the CM4 connector. cm4+94v0+boardview
CM4 expects 5V on its USB pins. Many custom carriers implement load switches. If you have a USB port that is not working, use the Boardview to find the load switch IC. Isolate the input and output traces visually. Since you likely can't find a direct download
This is a UL flammability rating. You will see "94V-0" printed on virtually every high-quality PCB. It means the substrate material (FR4) self-extinguishes within 10 seconds after an ignition source is removed. While this seems like a passive spec, searching for CM4+94V0 often implies you are looking for high-quality, professionally manufactured carrier boards (not cheap prototype boards) that comply with strict safety standards. In the context of boardview files, it signifies you are working with industrial-grade hardware. CM4 expects 5V on its USB pins
The beauty of the CM4 ecosystem is its openness. If your "94V0" board is a standard form-factor (like the CM4-IO-BASE), chances are it copies the reference design.