1
00:00:00,700 --> 00:00:03,666
In this lesson we are going to learn about the flash chip
2
00:00:04,833 --> 00:00:05,966
In the Apple mainboard,
3
00:00:06,266 --> 00:00:10,800
the flash chip is mainly responsible for providing working voltage for the flash
4
00:00:12,766 --> 00:00:16,133
A flash is the light we use to take pictures at night,
5
00:00:16,833 --> 00:00:19,700
or a flashlight that is turned on at night
6
00:00:20,400 --> 00:00:24,466
The flash chip boosts the battery's power supply to about 5V
7
00:00:24,700 --> 00:00:26,566
and supplies power to the flash
8
00:00:28,500 --> 00:00:32,700
If the flash is damaged, the flashlight function will not work
9
00:00:33,166 --> 00:00:36,533
and the flash will not illuminate when taking pictures
10
00:00:38,233 --> 00:00:42,466
Serious damage can also lead to the failure of the photo function
11
00:00:43,166 --> 00:00:44,733
When replace the flash chip,
12
00:00:45,233 --> 00:00:47,133
we need the same model to replace it
13
00:00:47,566 --> 00:00:49,866
Most mainboard have only one flash chip,
14
00:00:50,033 --> 00:00:51,700
but some models have two
15
00:00:56,566 --> 00:00:59,933
The iPhone 7 to XR models, for example,
16
00:01:00,100 --> 00:01:01,466
have two flash chips,
17
00:01:02,100 --> 00:01:03,633
most others have one
18
00:01:06,433 --> 00:01:08,933
Let's take a look at the flash chip in real life
19
00:01:11,633 --> 00:01:13,833
This is the iPhone 6s mainboard,
20
00:01:14,266 --> 00:01:17,566
and its flash chip sits directly above the CPU
21
00:01:18,600 --> 00:01:21,133
This black one is the 6s flash chip
22
00:01:22,433 --> 00:01:24,700
The mainboard is an iPhone 8 mainboard,
23
00:01:24,866 --> 00:01:28,066
and it has two flash chips on top of the mainboard
24
00:01:29,966 --> 00:01:33,933
Inside this long chip, there are two chips packaged together
25
00:01:35,600 --> 00:01:40,200
This mainboard is a XR mainboard, and it also has two flash chips
26
00:01:40,600 --> 00:01:43,233
The XR flash chip is in this position,
27
00:01:43,533 --> 00:01:45,233
one, and two
28
00:01:46,033 --> 00:01:49,366
Its flash chip is separate, not packaged together
29
00:01:51,000 --> 00:01:53,233
This mainboard is the iPhone 11 mainboard,
30
00:01:53,500 --> 00:01:55,866
and its flash chip is in the lower layer
31
00:01:56,366 --> 00:01:58,766
The iPhone 11 has only one flash chip
32
00:01:59,400 --> 00:02:02,133
This chip is the flash chip in the iPhone 11
33
00:02:03,033 --> 00:02:05,233
So that's all for this lesson