1

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After the chip is removed, we will scrape the glue

2

00:00:11,066 --> 00:00:14,933

I just checked the chip, there is basically no glue left on it

3

00:00:15,533 --> 00:00:17,433

The glue is mainly on the motherboard

4

00:00:18,200 --> 00:00:20,533

Now let's start scraping the glue on the motherboard

5

00:00:21,366 --> 00:00:24,833

Due to the size of the hard disk chip is relatively large

6

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It has a larger space to operate

7

00:00:27,833 --> 00:00:32,666

When we flatten the solder, it is not easy to stick to the surrounding components

8

00:00:33,033 --> 00:00:36,833

So we can apply low melt solder directly to the middle of the pad

9

00:00:40,866 --> 00:00:43,900

Use a soldering iron to melt the low melt solder

10

00:00:47,633 --> 00:00:50,033

Make every pad round and bright

11

00:00:53,333 --> 00:00:56,833

It means that it is completely neutralized with low melt solder

12

00:01:22,733 --> 00:01:26,966

After the low melt solder is applied, we will start to scrape the glue

13

00:01:29,500 --> 00:01:31,900

Rotary-air hot gun for glue scrapping

14

00:01:31,900 --> 00:01:33,766

About 230 degrees

15

00:01:34,200 --> 00:01:36,833

The air volume is still level 3-4

16

00:01:37,166 --> 00:01:39,533

The same temperature as chip reballing

17

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Then the air gun starts to heat the middle area

18

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Obeserve this pad

19

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The surface of the pad is now matte

20

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Reflection is not very strong

21

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The pads will be particularly bright when blown to a certain temperature

22

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Very reflective

23

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That means the solder has been melted and we start to scrape

24

00:02:02,400 --> 00:02:03,533

Don't in a rush

25

00:02:03,900 --> 00:02:05,033

Now it's lit up

26

00:02:06,566 --> 00:02:07,700

The solder melts

27

00:02:08,933 --> 00:02:12,133

Then lay the blade flat on the motherboard and flatten it back

28

00:02:14,533 --> 00:02:16,266

Scrape it off like this

29

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Don't shovel

30

00:02:18,733 --> 00:02:20,533

Don't cut it at an angle

31

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It is easy to scratch the motherboard

32

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We just lay the blade flat and flatten it to the back

33

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To keep turning the angle of the fixture so that we can operate easily

34

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After all the glue has been scraped off, remove the air gun

35

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Because low melt solder solidifies slowly

36

00:03:02,666 --> 00:03:07,333

So we're going to sweep the blade back and forth while the solder isn't solidifying yet

37

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Take away the excess glue and the excess solder

38

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Now it's solidified, let's blow it a little more

39

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This will save you trouble when we flatten the solder

40

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And it's not that difficult to clean

41

00:03:23,933 --> 00:03:24,900

Look at the blade

42

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A big lump of this glue on it

43

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It's easier to clean

44

00:03:33,100 --> 00:03:37,700

When there is a lot of glue on the blade, scrape it onto the motherboard fixture

45

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We're done with the glue