I just received an 8MMINI. There is no output on serial or HDMI whatsover, no matter which DIP settings I use.
Also, when I try to use uuu, I get the below. I see that /dev/ttyUSB{0,1} get created. Do I just have a dead board that needs to be RMA'ed?
root@rockpi:~# uuu ./L4.14.78_1.0.0_ga_images_MX8MMEVK.zip
uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.4.69-1-gf1d41e2
Success 0 Failure 0 Wait for Known USB Device Appear...
Prep 1/ 0 [=================100%=================] Http Download\Uncompress
How about the LED lights of the board are they ON, which ones? which version of Linux BSP are you using? are you trying SD, eMMC?
Can you please more information to debug?