The issue seems partially solved. The reason was because sd card despite on full formatting had some boot flags at the beginning. So doing dd if=/dev/zero of=/dev/mmcblk1 bs=1024 seek=8 count=1 helped, where mmcblk1 - is the name of SD card we want to make truly unbootable, (what is the name of SD c...

I have same problem with Nano Pi Neo Air, I flashed nanopi-neo-air_eflasher_4.14.52_20180628 with eflasher to emmc, with empty TF card slot - it boots and works just fine, BUT when non bootable sd card is inserted it does not start. I connected RX and TX, the output with the non bootable flash is th...

I have a problem with configuring microphone input on NanoPi Neo Air on Ubuntu kernel 3.4.39. I do not see audio capture device. Commad arecord -l gives me only hdmi device, but on board there are also mic pads. I used the same Nanopi with kernel 4.1 and I have successfully used mic input for audio ...