Cleaning the PCB

Although it's not strictly required, and it's unlikely to fix any issues you are having with your build, cleaning your PCB will make it look nicer and ensure there is no flux or solder residue left behind.

  1. First, gently scrape off any leftover solder with a screwdriver. Sometimes little bits of solder will jump off during soldering and stick to the soldermask. You can easily remove these with just a tiny bit of pressure.
  2. Clean the board with high-purity isopropyl alcohol (90% or higher) and a micro-fiber cloth. We recommend three rounds of cleaning.