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Now we start to reball
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Stencil after iPhone 8
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00:00:11,533 --> 00:00:14,000
This area of the hard disk is universal
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00:00:14,600 --> 00:00:15,900
Any model can be used
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When reballing small chips, after the solder is applied, it should be shoveled towards the front
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00:00:30,300 --> 00:00:33,566
This hard drive is too big, so don't shovel it
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00:00:33,833 --> 00:00:38,400
If you shovel,half of the solder that will be shoveled out from some of the pads
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00:00:39,233 --> 00:00:40,533
So don't shovel it
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00:00:41,033 --> 00:00:44,833
After applying, just put the blade at a larger angle.
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00:00:45,333 --> 00:00:46,400
Flatten back
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00:00:47,200 --> 00:00:48,800
Flatten away the excess
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00:00:52,033 --> 00:00:53,400
Don't wipe it either
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00:00:54,233 --> 00:00:55,866
It will wipe out a lot
14
00:00:57,166 --> 00:00:59,533
Then use 230 degrees to reball
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Swing the hot air gun slightly faster
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Because the opening of the hard disk is larger
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And they are all in the middle of the stencil
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00:01:12,266 --> 00:01:16,333
When your blowing temperature is too high or the speed is very slow,
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00:01:16,733 --> 00:01:20,200
it is easy to blow the stencil to deform and distort it
20
00:01:22,933 --> 00:01:24,900
Swing the hot air gun quickly
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00:01:30,733 --> 00:01:34,500
Do it for about a minute and then blow the solder at a fixed point
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00:01:37,200 --> 00:01:40,766
We didn't fix the upper left corner pad because it's grounded
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It doesn't stick and it's normal
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00:01:53,666 --> 00:01:55,833
Okay, we've done reballing
25
00:02:00,100 --> 00:02:01,900
Then take this thing off the side
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00:02:06,233 --> 00:02:08,600
In this way, the reballing will be fuller
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00:02:08,900 --> 00:02:09,900
And also even
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00:02:10,566 --> 00:02:12,233
If it is shoveled or wiped,
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00:02:12,833 --> 00:02:14,866
The pads may be uneven in size
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Then at this time, we can see that there is some glue on the corners of the chip that has not been removed
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Take a blade and cut it off to prevent it from touching the surrounding components while we install it
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Now it's clean