1

00:00:02,166 --> 00:00:06,033

We use a brush to clean the oxidation marks on the motherboard

2

00:00:19,200 --> 00:00:20,466

After cleaning

3

00:00:20,733 --> 00:00:24,300

We found that the pins of this small connector are relatively bright

4

00:00:29,133 --> 00:00:30,466

No signs of burn

5

00:00:31,666 --> 00:00:33,533

As for this long connector

6

00:00:35,966 --> 00:00:37,800

The top row is fine

7

00:00:39,133 --> 00:00:42,866

The first one from the left in the bottom row is a bit dark

8

00:00:44,300 --> 00:00:47,700

But nothing happens when I touch its pins with tweezers

9

00:00:49,333 --> 00:00:51,700

There is no problem in the middle area

10

00:00:52,500 --> 00:00:56,000

The three pins on the far right are obviously burnt black

11

00:00:56,300 --> 00:00:58,300

Then we touch it with tweezers

12

00:00:58,566 --> 00:00:59,966

The first one is loose

13

00:01:00,633 --> 00:01:02,200

Let's zoom in a little

14

00:01:08,333 --> 00:01:09,800

Obviously loose

15

00:01:09,966 --> 00:01:11,266

So is the second

16

00:01:13,533 --> 00:01:14,700

and the third