I've been trying to get a imx6quad/6dual to boot linux on a pico pi board. I read the linux user guide and flashed the .sdcard image. I've also used mfgtools to flash a u-boot image with no response. One of the issues is that I can't get the serial console to output any information. I've used minicom and picocom but neither output any information whatsoever. I've also messed around with the jumper pins and switches on the back of the board however the documentation isn't clear to the correct setting. I'm a newbie to this space and I've tried to use the mfgtool builds but they always output errors.
Overall, I want to flash the yocto sdcard so I can have linux(preferably ubuntu) running on the board. I don't have access to a display for the board.
Any help would be appreciated. Thanks