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The Xiaomi 8 Discovery Edition was officially released on July 31. This 'Special Edition' of Xiaomi 8 adds a transparent back shell, screen fingerprint and Face ID function. So what is its internal structure? 'Demolition Now' column strip You are going to find out. We heat the body around, melt the gel, and then remove the back shell, you can officially start exploring its internal structure. In fact, the most attractive of the Xiaomi 8 exploration version is the decorative motherboard on the back of the fuselage, many users think this It's a sticker, but in fact it's not the same material, but a copper plate. We removed this decorative board, you can see the groove with the rear double lens on the top, and the NFC row coil on the bottom, which are linked through the contacts on the lower left side of the back plate. The original on the decorative board According to official data, a total of 101 capacitors, 32 resistors, 6 switch ICs, 11 sensor ICs, 7 signal control ICs. Basically can be said to be a complete circuit board process. On the back of the decorative motherboard, this copper plate is clamped in it, which has improved heat dissipation. The copper patch is actually a complete PCB motherboard process. For example, copper plate drawing, capacitor and multiple original packages. We removed the motherboard, after the battery, you can see the internal structure of the Xiaomi 8 exploration version, still a classic three-stage design, but very compact, very high integration. The bottom of the fuselage is still the speaker, Type-C charging interface and other components we are very familiar with, of course, there are cables connected to the battery and the upper circuit board. In the lower left position of the fuselage battery, the circuit board with the fingerprint under the screen is placed obliquely. The Xiaomi 8 Discovery Edition selects an optical recognition scheme similar to vivo NEX on the fingerprint under the screen. The difference is that an additional is added. Pressure Sensor. It can be clearly seen that the circuit board with the fingerprint on the screen is linked with the contact on the left side, which can be used for unlocking and paying. This is the circuit board above the fuselage. Under the electromagnetic shielding cover is the core component, which is the 'real version' of the decorative motherboard. The front side of the circuit board above the fuselage, the left side of the groove is the position of the rear double camera, the upper groove is the Face ID part of the upper part of the fuselage. Decorative motherboard, rear dual camera, Face ID part display. The motherboard part above the fuselage, the battery, the lower part of the motherboard is displayed. The upper part of the millet 8 exploration version is simply composed of a decorative motherboard and a real motherboard. (This sentence is a bit gargle) The bottom of the fuselage is familiar with several parts: speakers, charging interface, row coils, etc. The Face ID part above the fuselage consists of infrared camera, light sensor, ToF distance sensor, dot matrix projector, etc. The actual construction is the same as the rendering. The battery of the Xiaomi 8 Discovery Edition is not difficult to remove. There is a large metal plate on its back. Although it reduces the battery capacity to a certain extent, it has better protection for the components under the fuselage. The aspect has also led to the increase in the cost of maintenance of the Xiaomi 8 Discovery Edition. The rear dual-camera display of the fuselage, the Xiaomi 8 exploration version uses a dual 12-megapixel zoom dual camera, and has a Sony IMX 363 sensor. When the battery capacity is 3000 mAh, the capacity of the Xiaomi 8 (Standard Edition) is reduced to some extent, but the QC 4.0+ fast charge support can make up for the lack of power. There is a Kevlar effect on the surface of the battery. The mask increases the aesthetics of the display. The metal plate on the back of the battery has three fixing screws on the top and two on the bottom. This has a good protection for the fuselage, but it increases the difficulty of maintenance. The motherboard component display at the bottom of the fuselage. On the front side of the motherboard, there are also a lot of PCB technology patch decoration, with the top of the fuselage to beautify. Rear zoom dual camera display. The Face ID section shows that the 3D structured light blessing makes the Xiaomi 8 Discovery Edition the world's first Android phone with this feature, and the advantages of 3D structured light are also very safe, easier to unlock under low light, etc. There are 33,000 coded infrared scatters, but due to the adaptation problem, the fingerprint is still the only biometric payment method for the Xiaomi 8 exploration version. The circuit board display below the fuselage. The above is the whole process of the disassembly of the Xiaomi 8 exploration version. Overall, the internal structure of this machine is very compact, the design is ingenious, is one of the few companies in China to decorate the interior of the fuselage. In addition, the battery snap design, decorative motherboard , the screen fingerprints, etc., also let the user feel full of sincerity. The transparent back shell of the Xiaomi 8 exploration version has a greater investment in process cost (complete PCB fabrication), heat dissipation, and structural space, but the visual effect will be improved a lot. In addition, the thickness of the copper patch is not obvious, so The waste of space is not big. But the corresponding difficulty of maintenance, the difficulty of dismantling is also very high, and the cost of repair may be expensive. △ scoring standard: (out of 10 points, the higher the score represents its maintenance, the higher the difficulty of dismantling) △ maintenance difficulty: 8.5 points (higher) △ maintenance cost: 9.0 points (very high) △ overall rating: 8.5 points
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