Step 10: Clean off the toner
- Use the bag trick again and soak the board in 2 tsp or so of Acetone for a couple of minutes.
- Rub the board through the bag with your fingers to get the toner off.
- Take it out and clean it with a rag or paper and some more acetone if desired.
- Let it dry
- Optionally use another bag and some liquid tin. I don't think it's needed if you are going to solder the board right away.