Everything about Antminer s19 hashboard
Solder paste column M705, flux, board washing h2o with complete alcohol; board washing water is applied to wash up the solder residue after repair; thermal gel (specification: Fujipoly SPG-30B) is used to smear the area from the chip immediately after repair ；ball-planting metal mesh, solder absorption wire, solder ball (the ball diameter is usua