a-four) Test If your pins of the initial chip are not soldered effectively (it had been present in repair the pins are tinned observing with the facet, even so the pins aren't stained with tin in any respect when the chip is removed) Open MPLABIPE and choose system: PIC16F1704, https://beautmbpd.weblogco.com/31577838/getting-my-how-long-does-it-take-antminer-s19-to-mine-1-bitcoin-to-work