1

00:00:03,000 --> 00:00:04,033

Hello,everyone

2

00:00:04,300 --> 00:00:09,233

Today, I will show you how to disassemble and solder the chip on the mobile phone motherboard

3

00:00:10,066 --> 00:00:15,033

Some of the chips on the mobile phone motherboard are directly soldered to the motherboard

4

00:00:15,333 --> 00:00:16,333

No processing

5

00:00:16,433 --> 00:00:22,033

After some chips are soldered, some glue will be filled in the gap between the chip and the motherboard

6

00:00:23,333 --> 00:00:26,933

For example, the big CPU chip we are seeing now

7

00:00:28,800 --> 00:00:34,700

The gaps between its peripheral components and the gaps next to the chips will be filled with black glue

8

00:00:36,066 --> 00:00:37,766

We call it glued chip

9

00:00:38,400 --> 00:00:42,566

The other is that no processing is done after soldering to the motherboard

10

00:00:43,633 --> 00:00:48,266

There is no glue in the edge of the chip and the gap of the small component

11

00:00:48,866 --> 00:00:51,900

There is no glue in the gap of the chip,like here

12

00:00:53,200 --> 00:00:54,833

We call it glueless chip

13

00:00:55,433 --> 00:00:59,233

Today we mainly learn how to disassemble this glueless chip

14

00:00:59,866 --> 00:01:01,266

And how to install it

15

00:01:01,766 --> 00:01:05,800

Check the direction of the chip before you are ready to disassemble the chip

16

00:01:06,533 --> 00:01:11,766

For example, the chip you see now is in the direction of the lower right corner

17

00:01:12,100 --> 00:01:14,466

There is a darker triangular arrow

18

00:01:15,666 --> 00:01:23,733

This triangle represents the direction of the A1 pin of the chip, which can also be said to be the direction of the first pin

19

00:01:24,900 --> 00:01:26,933

We commonly call it pin 1

20

00:01:27,466 --> 00:01:34,500

In the case of a drawing, we can disassemble the chip and find this direction according to the annotation on the drawing

21

00:01:34,900 --> 00:01:39,866

There are some Android models or some older ones without drawings

22

00:01:40,233 --> 00:01:44,900

We must make a mark before disassembling the chip about the direction of the pin

23

00:01:45,400 --> 00:01:50,866

Because in subsequent operations, the fixture of the motherboard may change direction

24

00:01:51,466 --> 00:01:54,600

Now we can make a mark at this position in advance

25

00:01:55,266 --> 00:01:58,700

We can use tweezers to make a slight mark on the board

26

00:01:59,466 --> 00:02:02,166

There is a little bit of copper exposed here

27

00:02:02,166 --> 00:02:03,533

Because of the scratch

28

00:02:04,866 --> 00:02:06,533

This is a mark we made

29

00:02:07,133 --> 00:02:13,500

After the chip is disassembled, the first pin must be soldered back in the direction we marked

30

00:02:14,266 --> 00:02:16,066

This is one of the methods

31

00:02:16,066 --> 00:02:20,000

Or use some marker pens or green oil to mark on the motherboard

32

00:02:20,133 --> 00:02:22,466

It is most convenient to use tweezers

33

00:02:23,166 --> 00:02:26,100

This is the preparation before disassembly