1

00:00:02,833 --> 00:00:05,300

Next we start soldering towards the motherboard

2

00:00:07,300 --> 00:00:08,566

Clean it first

3

00:00:35,733 --> 00:00:42,033

After cleaning, give the motherboard a little heat

4

00:00:43,666 --> 00:00:47,766

Add some solder paste

5

00:01:24,900 --> 00:01:29,566

The position in the upper left corner is the pin we identified just now

6

00:01:29,766 --> 00:01:34,933

Next, we put the pin of the CPU in this direction

7

00:01:36,466 --> 00:01:42,300

You can see the logo on the back of the CPU, here is a small triangle

8

00:01:43,000 --> 00:01:46,533

Facing this triangle to where we marked

9

00:01:46,833 --> 00:01:49,433

There is a dot at this position on the front

10

00:01:50,733 --> 00:01:53,833

This is a Huawei phone

11

00:01:54,833 --> 00:02:00,100

There is a alignment line on the side, let's align the alignment line

12

00:02:03,300 --> 00:02:05,233

The location is almost filled

13

00:02:05,233 --> 00:02:10,700

Next we start heating, the temperature is about 20 degrees lower than when it was disassembled

14

00:02:11,766 --> 00:02:16,066

The temperature was 340 degrees when it was dismantled,

15

00:02:22,100 --> 00:02:25,000

now we adjust the temperature to 320 degrees

16

00:03:00,033 --> 00:03:01,500

It's about to melt

17

00:03:13,966 --> 00:03:15,266

Solder oil is out now

18

00:03:15,566 --> 00:03:20,933

If your hand is relatively steady, you can use tweezers to push it slightly to see if it can move

19

00:03:23,066 --> 00:03:24,700

The temperature is not enough

20

00:03:30,233 --> 00:03:34,033

In fact, when installing the lower layer, the tin does not need to be specially blown

21

00:03:34,566 --> 00:03:37,033

When you can install the upper layer, blow it for a while

22

00:03:42,766 --> 00:03:48,233

Because when the lower layer is blown, it is directly heated on the surface of the chip.

23

00:03:48,233 --> 00:03:52,133

When the cover is installed, it is separated by a thickness of the cover

24

00:03:55,666 --> 00:04:00,300

When soldering, apply a little solder paste to the position of the edge solder joint

25

00:04:01,066 --> 00:04:03,433

Pin 1 is in the upper left corner

26

00:04:08,066 --> 00:04:11,866

You can also see a triangle logo at this position on the top cover

27

00:04:24,166 --> 00:04:26,166

The location is about the same

28

00:04:26,933 --> 00:04:29,333

The upper and lower floors are basically the same size

29

00:04:29,433 --> 00:04:32,466

Some upper floors will be smaller than the lower ones

30

00:04:32,666 --> 00:04:36,700

In this case, just leave the space on both sides, and give it a good spacing.

31

00:04:39,100 --> 00:04:40,233

The temperature is still set to the same

32

00:05:21,766 --> 00:05:23,900

The solder paste on the lower layer has already come out,

33

00:05:23,900 --> 00:05:25,866

so the upper layer should basically be almost the same

34

00:05:25,866 --> 00:05:28,100

You can move it a little bit with tweezers

35

00:05:29,433 --> 00:05:33,100

Well, the homing action can be clearly seen

36

00:05:35,900 --> 00:05:38,733

Next, let's make up the inductor that we just removed.

37

00:05:39,566 --> 00:05:41,500

Don't forget to make up this inductance

38

00:05:48,900 --> 00:05:52,166

The one near the CPU basically supplies power to the CPU.

39

00:05:52,866 --> 00:05:56,500

If you don't fill it up, the CPU won't work.

40

00:06:01,166 --> 00:06:05,966

You will mistakenly think that the CPU is not installed properly

41

00:06:47,066 --> 00:06:50,233

In this way, we have already soldered this CPU