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Next, we find a scrapped iPhone mainboard and remove an inductance coil that has not been glued

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When dismantling, it is best to find the top where the pins cannot be seen

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It is best not to remove the inductor that has pins on both sides

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Remove the inductor that has pins welded on the mainboard

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Take a straight air gun and blow it at 450 degrees, while blowing,

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gently touch it with tweezers, don't force it

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When it comes loose, gently clamp it with a pinch

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Removing this inductance is used to tin the solder points on the main board of the plastic seat

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After the inductor is removed, let's check if the solder points have been broken off

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If you use too much force when disassembling, the solder points may be broken off

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Now the two solder points are still relatively bright,

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there is no problem with this, put it aside

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We take out the medium temperature solder of 183 degrees

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Pick up a small lump with tweezers and wipe it on the fixture

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Spread into two tin pieces of the same size and blow them with an air gun

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First use one of the legs of the inductor to connect to a piece of solder paste

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The temperature doesn't matter much,

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as long as the tin can be blown, the air gun doesn't matter

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A lump of it has been blown and stuck to the solder points of the inductor

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Reverse the inductance

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After blowing the two lumps of solder paste, stick to both sides of the solder point

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In this way, the inductor is already soldered

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Next we clean it

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Because there may be some broken tin slag on the edge of the inductor

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Let's use a brush dipped in board washing water to clean the tin slag

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Ok, so the inductor is tinned

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We put the inductor on top of the plastic seat that needs to be tinned,

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and then add a little more solder paste

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If the original solder paste on the mainboard is particularly dirty, clean it

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Now this one is not particularly dirty, so I didn't wash it

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Use the rotary air gun, adjust the temperature to the same as before, 330-340 degrees

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Then blow the tin on the inductor

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Block it with tweezers to prevent the inductor from being blown away

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Now that the solder is melted, take the tweezers and push it

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In this way, the solder on the plastic seat is ready, and it is very full and even

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This edge is a little tinned, let's fix that

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Cut off a small section of the tin-absorbing wire,

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and hold the tin-absorbing wire with tweezers

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Put a corner of the tin suction line to the position where the tin is connected,

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and then use an air gun to blow the solder and stick it away

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In this way, the position of the short circuit has been dealt with