balck screen too on ofw but i remove the tiny and install the original rp and all work fine... i think these chips are bad but can 'i do something to recover them ?Try to remove the chip and test the switches. Black screen is something else. Is it booting to ofw? @.@
Post automatically merged:
it work with the last pico fw too ?I use waveshaee rp2040 tiny chip, all is working. Check if you have an original rp2040 tiny and not a clone.