1

00:00:02,500 --> 00:00:04,200

Next we scrape the chip

2

00:00:05,400 --> 00:00:10,133

Similarly, we put the low melt solder first and flatten with a soldering iron

3

00:00:25,100 --> 00:00:25,966

When we're flattening,

4

00:00:25,966 --> 00:00:29,033

the small glass crystal on the A10 cpu may be

5

00:00:29,033 --> 00:00:31,200

dragged off by the soldering iron

6

00:00:31,600 --> 00:00:32,500

it doesn't matter

7

00:00:33,366 --> 00:00:35,400

Because this crystal is not glued

8

00:00:35,766 --> 00:00:38,566

and is very easy to be dragged off by the soldering iron

9

00:00:41,700 --> 00:00:44,966

but it won't make any difference

10

00:00:49,433 --> 00:00:52,233

The next model like a 11 a12 a13 a14

11

00:00:54,400 --> 00:00:57,500

The glass crystals on them will not be dragged off easily

12

00:00:57,933 --> 00:00:59,566

when flatten the low melt solder

13

00:00:59,666 --> 00:01:00,833

because they are glued

14

00:01:10,300 --> 00:01:12,566

The soldering iron moves a little faster,

15

00:01:17,133 --> 00:01:19,200

don't stop in a certain area

16

00:01:29,566 --> 00:01:32,733

After flattening the low melt solder, next we start scraping

17

00:01:33,633 --> 00:01:36,466

Take a look at this area where the pads are loose

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00:01:38,033 --> 00:01:40,833

check if there are any other pads break off

19

00:01:41,100 --> 00:01:42,566

No other found yet

20

00:01:43,533 --> 00:01:45,000

we continue to scrape

21

00:01:53,300 --> 00:01:59,133

The rotatry air gun, 230 degrees, and the air volume is level 3-4

22

00:02:01,466 --> 00:02:03,866

But we use the blade differently than before

23

00:02:04,266 --> 00:02:08,600

This is a small soft blade we used to pry hard drives and wifi before,

24

00:02:10,166 --> 00:02:11,366

It is very thin

25

00:02:13,166 --> 00:02:16,600

The edges have also been polished and are relatively rounded.

26

00:02:18,200 --> 00:02:20,300

Its scraping force is very small

27

00:02:23,100 --> 00:02:27,466

Use this blade to scrape the cpu after A10, the pads won't break off

28

00:02:31,000 --> 00:02:33,833

We also blow the tin first to make it melted.

29

00:02:49,566 --> 00:02:52,233

Then cut the blade without laying it flat on it

30

00:02:53,166 --> 00:02:55,833

Otherwise, the pad break off will easily happen

31

00:02:56,200 --> 00:02:57,700

We should stand the blade up,

32

00:02:58,100 --> 00:02:59,766

slightly sideways towards us

33

00:03:00,300 --> 00:03:02,100

Then drag it diagonally to the back

34

00:03:04,366 --> 00:03:06,133

This force is very small

35

00:03:06,366 --> 00:03:08,300

When it encounters an obstacle,

36

00:03:09,033 --> 00:03:10,466

it automatically bends and bounces over

37

00:03:11,933 --> 00:03:13,200

and won't take the pad off

38

00:03:14,000 --> 00:03:16,433

Because the blade is so soft and flexible

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00:03:29,433 --> 00:03:32,233

We tried a lot of ways to scrape this cpu

40

00:03:32,333 --> 00:03:35,466

Later, we found that this method is more suitable

41

00:03:35,466 --> 00:03:38,300

for novices to master, using this blade

42

00:03:42,533 --> 00:03:46,066

Pads break-off will easily happen when you use a hard blade.

43

00:04:52,433 --> 00:04:55,666

Now let's check if there are more pads break off

44

00:05:02,200 --> 00:05:04,633

We can see there are 3 more pads broke off

45

00:05:07,200 --> 00:05:08,900

We didn't find that just before,

46

00:05:09,000 --> 00:05:12,166

but we can see it clearly after we zoom in on this area,

47

00:05:12,800 --> 00:05:16,266

They should have broken off when we flattened the low melt solder.

48

00:05:21,533 --> 00:05:25,366

If this kind of break-off occurs before disassembling the cpu,

49

00:05:25,966 --> 00:05:27,833

there will never be only one pad.

50

00:05:30,100 --> 00:05:32,766

It's all around this kind of looseness will be more.

51

00:05:36,133 --> 00:05:39,100

It was caused by the whole board pulling when it fell

52

00:05:45,100 --> 00:05:49,600

Fortunately, the pads broke off are in the middle area

53

00:05:51,766 --> 00:05:53,766

If they are on the edge,

54

00:05:54,466 --> 00:05:56,300

This basically needs to be filled

55

00:05:58,700 --> 00:06:00,333

Let't take a look at this area

56

00:06:05,566 --> 00:06:07,066

This point is very loose

57

00:06:08,200 --> 00:06:10,400

It was all torn off when it fell.

58

00:06:23,233 --> 00:06:25,466

Although it did not fall off when prying,

59

00:06:26,100 --> 00:06:28,900

but when scraping or flattening th low melst solder,

60

00:06:29,600 --> 00:06:31,333

it fell off with a light touch.

61

00:06:44,133 --> 00:06:45,566

This one is the same

62

00:06:48,666 --> 00:06:51,700

When the position near the component is not easy to scrape,

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00:06:52,200 --> 00:06:54,566

we can use tweezers to push gently

64

00:06:59,700 --> 00:07:01,566

But this component is cracked

65

00:07:03,233 --> 00:07:06,600

So, we just drag it off by using the soldering iron

66

00:07:22,766 --> 00:07:24,100

It's almost done

67

00:07:27,466 --> 00:07:29,433

But there's a little bit of glue here

68

00:07:32,600 --> 00:07:33,766

Just drag it off

69

00:08:05,033 --> 00:08:08,400

Well, the CPU scraping, we have almost finished