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Let's flatten the low melt solder and clean it

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Remember to flatten the low melt solder first and then clean

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Because the tin on this pad is uneven,

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some is large and some is small

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When washing directly, and the brush is too hard

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it will easily break off

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So we're going to flatten the low melt solder to every pad

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scrape until the pad is more rounded and then clean it

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This pad will not have any resistance

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It doesn't break off easily when brushing

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There is a lot of tin on the pads, when we brush it,

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When the resistance of this tin is great

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It's also easy to wipe the pad off.

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We just use the soldering iron to drag off this glass crystal

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wait for it to cool down

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After cooling, wrap the chip with a dust-free cloth

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and clean through this cloth

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Use a cloth to stick away the soldering oil and the glue residues

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If we cannot stick the last few pieces,

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We're going to use a brush

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In this area, there are a few more pads broke off just now.

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The pad break-of may happen when we brush

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For example, the point we see now

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is obviously higher than other points

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It's a little looser

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ok, after cleaning

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We can see there're some places where the glue is still a little thick

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Let's keep scraping

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First clean the fixture

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The edge on this side looks a little darker

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it should be glue

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After the glue is scraped off,

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it becomes that kind of black scum