Did you solder on the headers yourself? Is your soldering skill proficient? Got pics? Are you using proper connections and not just wedging jumpers into PCB holes? (Yes, that has been the case for a few previous confused people)
Did you solder on the headers yourself? Is your soldering skill proficient? Got pics? Are you using proper connections and not just wedging jumpers into PCB holes? (Yes, that has been the case for a few previous confused people)