SOLDERING TIPS : 1. Heat up the soldering iron. 2. After soldering iron is fully heated, use a wet sponge to softly scrape the tip to remove old solder. 3. Wait seconds to heat and dry the iron, carefully apply a small amount of fresh solder and coat the tip for pre-soldering before start. 4. When soldering two components together, place the soldering iron on the part where you want to touch, hold it there for a second. 5. Slide the solder underneath the tip of the iron, sandwiching it to the joining part, and hold it for another second or two, feeding in enough solder you need. 6. Pull away the solder first, and continue holding the iron for another second to let the solder forming a good joint. 7. Remove the iron, wait a few seconds and let the solder natural cooling. A good soldering done.