Solder paste column M705, flux, board washing water with complete Alcoholic beverages; board washing drinking water is utilized to clean up the solder residue right after repair; thermal gel (specification: Fujipoly SPG-30B) is accustomed to smear the surface area with the chip right after repair ；ball-planting steel mesh, solder https://antminer-s19-pro-hashboar44208.blogproducer.com/38189439/getting-my-how-long-does-it-take-antminer-s19-to-mine-1-bitcoin-to-work