SenseCAP M4 square

I needed couple of odysseys, and they are in very tight supply right now so I bought those SenseCap M4 square boxes in a hope to just resflash the ssd with Linux of my choice.
To my surprise the BIOS is hard passworded.
What is that password, how to go around it?

Maciej

I will link this post to my contacts at Seeed and see what happens

Resetting the CMOS (Complementary Metal-Oxide-Semiconductor) can sometimes clear the BIOS password. You can Locate the CMOS battery on the motherboard.
Remove the battery for about 5–10 minutes to reset the BIOS.
Reinstall the battery and power on the device.

Left it overnight without battery , no luck

i sent a message to seeed they on vacation for 3 days (not sure when it started)