1
00:00:03,533 --> 00:00:05,466
After the solder joints are done
2
00:00:05,833 --> 00:00:07,600
Then we can reinstall the chip back
3
00:00:08,366 --> 00:00:10,533
We need to work on the solder joints a bit
4
00:00:11,166 --> 00:00:16,533
Especially when we were flattening the pad just now, there is some solder residue on some pins
5
00:00:17,166 --> 00:00:19,466
We must flatten this uneven place
6
00:00:21,600 --> 00:00:22,800
Add a little flux
7
00:00:27,933 --> 00:00:30,600
This location has less space to operate
8
00:00:31,133 --> 00:00:33,466
We can use another way to flatten the solder
9
00:00:34,066 --> 00:00:37,166
Cut a part like this from a used desoldering wick
10
00:00:39,033 --> 00:00:40,400
Put it on this motherboard
11
00:00:40,700 --> 00:00:42,833
Brush back and forth like this
12
00:00:42,966 --> 00:00:47,033
If you brush it directly, you will definitely not be able to brush it off
13
00:00:47,300 --> 00:00:49,633
We're going to melt the solder with a blow gun
14
00:00:50,666 --> 00:00:53,033
Easier than flattening with a soldering iron
15
00:00:55,766 --> 00:00:57,500
Still straight-air hot gun
16
00:00:57,633 --> 00:01:02,566
450 degrees, blow a bit and remove it for a few times
17
00:01:10,933 --> 00:01:12,466
This will flatten the pads
18
00:01:13,300 --> 00:01:14,800
Let's clean it up a bit
19
00:01:18,900 --> 00:01:20,500
Then we reapply the flux
20
00:01:23,800 --> 00:01:25,800
The solder must be spread evenly
21
00:01:27,266 --> 00:01:29,533
Ensure that each solder joint has it
22
00:01:31,900 --> 00:01:35,500
At this time, we can re-install the chip back on it
23
00:01:36,200 --> 00:01:38,133
I have a pre-planted chip here
24
00:01:40,366 --> 00:01:41,900
Put it slightly straight
25
00:01:43,800 --> 00:01:45,000
Not too straight
26
00:01:45,000 --> 00:01:46,900
It was too much tilted just now
27
00:01:47,033 --> 00:01:48,766
Let's straighten it a little bit
28
00:01:51,133 --> 00:01:54,266
It can be slanted, but it can't be too much
29
00:01:56,433 --> 00:01:58,466
This position is almost done now
30
00:01:58,733 --> 00:02:00,033
But a little bit down
31
00:02:00,700 --> 00:02:04,066
Then it will automatically return during the welding process
32
00:02:04,766 --> 00:02:06,266
Straight-air hot gun
33
00:02:06,966 --> 00:02:10,300
450 degrees, minimum air volume
34
00:02:10,833 --> 00:02:14,533
Blow on the chip, the chip will return to its place later
35
00:02:16,700 --> 00:02:18,266
Well it's back in place
36
00:02:19,533 --> 00:02:20,466
Stop heating
37
00:02:21,533 --> 00:02:27,533
At this point, the repair method for the broken wire at the bottom of the chip has been demonstrated
