1

00:00:03,833 --> 00:00:06,533

Next we clean up the pads of each chip

2

00:00:35,866 --> 00:00:37,866

The pads broke off a lot on this chip

3

00:00:40,000 --> 00:00:41,766

A total of 6 pads broke off,

4

00:00:42,166 --> 00:00:45,933

because the soldering iron was not very easy to operate in this position.

5

00:00:49,666 --> 00:00:51,900

But only two of the pads are useful

6

00:00:57,666 --> 00:00:59,266

Let's fill them up later

7

00:01:02,666 --> 00:01:04,633

There are 2 pads broke off on this chip

8

00:01:08,633 --> 00:01:11,166

There is no wiring around or under this pad

9

00:01:12,166 --> 00:01:13,566

So does this pad

10

00:01:25,133 --> 00:01:27,600

There is one idle pad broke off on this chip

11

00:01:35,233 --> 00:01:37,766

There is no wiring around or under this pad

12

00:01:39,166 --> 00:01:40,333

These are idle pads

13

00:01:45,933 --> 00:01:48,466

After cleaning, let's flatten the pads

14

00:01:56,400 --> 00:01:58,466

This kind of chip is relatively small

15

00:01:58,733 --> 00:02:01,166

I recommend you using an air gun to sweep,

16

00:02:15,466 --> 00:02:18,066

straight air gun, 450 degrees

17

00:02:19,366 --> 00:02:20,600

Blow it and leave

18

00:02:25,966 --> 00:02:27,666

Another idle pad broke off

19

00:02:46,433 --> 00:02:50,300

The idle pads broke off even though we wiped lightly with the solder wick,

20

00:02:50,566 --> 00:02:53,533

It means that there is a problem with this board.

21

00:02:59,166 --> 00:03:02,800

Take away this big lump of tin, then get some flux

22

00:03:33,733 --> 00:03:36,433

The air gun must not blow continuously

23

00:03:37,166 --> 00:03:40,433

Because the temperature of 450 is relatively high

24

00:04:02,366 --> 00:04:04,200

Now, we have flattened all the pads