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Next we start welding

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Use the air gun to blow the mainboard to heat it

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Put a little bit of flux

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Don't add too much

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Because the chip itself is very thin

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If the flux is very thick

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Once it boils, the chip will move around on it

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After adding, swipe it around

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Only a thin layer is required,

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as long as each pad is covered with the flux

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After the flux is applied, let's place the chip

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There is no mark on the back of the chip

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Check to see if there is any residue on it

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There's a fluff here, take it off

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If it is not easy to handle,

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you can brush it directly across a dustless cloth

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Now we start to place the chip

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The corner marked 1 should be aligned to our lower left corner

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It can be seen from this position that we pryed the chip just now,

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there was a little pry damage here

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If you are not sure, you can find a mainboard

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of the same model for reference,

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the logo of this corner marked 1 is right to the lower left corner

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It's a little bit slant now, need to correct

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Don't let it slant too far

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We start heating, the straight air gun is 450 degrees,

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and the air volume is the minimum

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It is exactly the same as the non-glue chip

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After you remove the glue, this chip is a non-glue chip

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Let's take a closer look

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During the heating process of the chip,

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there may be an homing action

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That means it will move a little in my direction

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look carefully

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It moved a little over

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As soon as it moves, blow it for another two or three seconds

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and stop the heat

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If the blowing time is a little longer, the tin extrude

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may happen in the surrounding small components

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including such small chips

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If you are unstable with the tweezer

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remember never to use the tweezer to move it

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Otherwise, it is easy to touch the corner of the chip,

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resulting in a short circuit

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Only after practicing for a while, your hand is relatively stable,

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and it is not easy to shake the tweezers

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You can gently move it a little bit from the side.

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you must not press it

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Now, we're done welding this chip