I have a Matek F405miniTE
I flashed bdshot firmware Arducopter 4.5.7 and got this error:
Chan 3 to 9, PWM: failed, no DMA
I tried to power board from the battery or only USB and the result same
On PWM1-4 i had 4 motors and 1,2,4 responding while 3 is not
Maybe somebody knows how to fix that?