The “Too much solder” and “cold joint” ones can also look that way if you do not clean the points of application well (including the tip of your iron) or if you don’t use flux. A simple rubbing alcohol wipe will aid greatly in a pinch for cleaning the solder connection prior to solder application.
Ayeager77 on August 21st, 2020 at 19:04 UTC »
The “Too much solder” and “cold joint” ones can also look that way if you do not clean the points of application well (including the tip of your iron) or if you don’t use flux. A simple rubbing alcohol wipe will aid greatly in a pinch for cleaning the solder connection prior to solder application.
Edit: a word
Begle1 on August 21st, 2020 at 19:50 UTC »
The most important step isn't on this guide: Grow a third arm.
Brontyde on August 21st, 2020 at 19:57 UTC »
Being a newbie at soldering, do you add step 2 while you're heating it up, but never touching the tip?