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After removing the shield

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Then we can scrape the edge glue

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I taped the bottom base with high temperature tape

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Prevents it from the solder extrusion during disassembly

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Put the high temperature tape on this position first

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It's better to tape more than 3 layers

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Let's scrape the edge glue first

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Both rotary-air hot gun or straight-air are okay

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Around 200 degrees

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Adjust the air volume to the maximum

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CPU like A10, there is a glass chip on the upper side

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This is a power amplifier chip for the earpiece

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Don't break the glass chip when we de-glue

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Because the power amplifier chip is directly connected to the main power supply

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If it is scratched and broken, it may cause leakage or short circuit

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Scrape from the side gently

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When scraping the edge glue, pay attention to see if there are relatively large electric pole coils around

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If the glue is loose when scrapping, we just use tweezers to push it off

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Because of the size of this electric pole coils

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There is a high probability that the surrounding poles will be loose.

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So the reason for the looseness is not necessarily that you scraped the edge glue,

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it is mainly caused by the previous heavy fall

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If you find it loose you remove it

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If it's a little loose, we don't need to worry about it

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For example, the inductor itself is mounted close to the CPU

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If we touch it when we scrape, it will definitely move a little bit

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But like this one, it isn't loose

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If you scrape it with a blade and it becomes loose, remove it

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If it's a little loose, we don't need to worry about it

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Because of the high temperature tape, it is not easy to see clearly

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Just scrape along the chip will do

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It is clean now