@pito yes I can confirm it does upload on 0023 arudino IDE so circuitry is fine but not any other version like the latest 1.0.3 for some reason.Ive tried pulling rst to gnd quickly then back to vcc via 10k resistor just before I click the upload button and still get error "avrdude : stk500_getsync(): not in sync:resp=0x49" .