Hi, everyone im just a beginner and practicing soldering stuff. i tried using a mouse pcb as a sample. now, heres what you see what i did. i used rosin and added some solderwire to attach the mouse button.
i was thinking if i’ll be able to remove those dark spots on pcb. i was trying to use rosin flux and solder wick to wash the old solders. and added new solder using rosin.
how am i remove these dried rosin on pcb. any advice please??
