Replacing electronic components often requires a board jack. The soldering device is easy to block, needs to be cleaned frequently, and when it encounters a double panel, the soldering device is sometimes powerless.
At this time you need a through hole tool, stainless steel needle!
Practical and simple, use a soldering iron to heat the jack that needs to be cleaned. After the tin reaches the melting point, insert the corresponding size of the through-pin into the jack, move it up and down, and then slowly remove the soldering iron. Wait until the soldering iron is removed, and the tin re-solidifies. As the stainless steel does not stick to the tin, a hole will be left.