Hi all kindly need advise from expert. Just now done wiring for dna20 but the problem when i press firing button nothing happen and not firing.Remove wiring from 510 connector and press again still nothing.Supposedly when wire remove from 510 it should check atomizer error come out rite?but no respond.click 5 times screen locked as normal..anyone pls help..thanks

send from my old school phone

send from my old school phone