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The memory of the equipment purchased and disassembled this time is 6GB 64GB. The following disassembly contents and analyzed material information shall be subject to the disassembly equipment.
Disassemble
Remove the SIM card holder, and the opening direction of the card slot of Changxiang Z 5g is on the top of the mobile phone. There are white rubber rings on the Cato.
Next, enter the official disassembly of the mobile phone.
Disassemble the rear cover in the same way, heat the surface of the rear cover evenly with a hot-air gun, and then remove the rear cover with the help of suction cups, warps and other tools. There are a large area of foam and graphite sheets on the back cover. The amount of adhesive around is sufficient, and the viscosity is larger than that of the previous thousand yuan machine.
There is a screw on the motherboard cover with an anti disassembly label, and foam cushion is pasted at the camera position. There is a PFC antenna on the right side of the motherboard cover and a white label. Huawei Changxiang Z abandons the integrated design of loudspeaker and auxiliary panel cover and adopts split design.
Unscrew the screws and remove the main board cover, auxiliary board cover and speaker module.
There is a pressure balance film on the inner side of the speaker module, and insulating tape is pasted at the position corresponding to the speaker module. A large area of graphite sheet is pasted inside the main board cover, and the rear camera flash is pasted on the main board with transparent double-sided tape.
There is an antenna board on the right side of the mobile phone, which is fixed under the side key with screws.
The battery is pasted on the inner support through plastic adhesive tape, and the battery is removed. It can be found that the side key board, antenna board and fingerprint sensor board are all in the same position.
Remove the motherboard, three rear cameras and front cameras.
The CPU position of the main board is coated with thermal conductive silicone grease, and the edge is pasted with conductive foam. The light distance sensor is fixed on the inner support as a separate small plate. Both USB interface and audio jack interface have silica gel protective sleeves.
Finally, remove the components on the inner support. First remove the antenna board. Two metal locators are installed above the antenna board. After removal, the key soft board, fingerprint sensor, earpiece, vibrator, light distance sensor board and main and auxiliary board connecting soft boards can be removed in turn.
Black foam is pasted on the vibrator and earpiece, and black double-sided tape is pasted around the light distance sensor board
The screen and the inner support are completely fixed by adhesive strips, and the screen and the inner support are separated by heating the screen to soften the colloid. Graphite is pasted on the soft board of the screen, and insulating tape is pasted on the device positions on both sides. Graphite paste and foam are also pasted on the inner support.
Huawei Changxiang Z uses a total of 22 screws, which is generally difficult to disassemble. The interior adopts the common three-stage design. Speaker module and auxiliary panel cover are designed separately. Battery is fixed with the plastic adhesive tape, which is not easy to pull; The heat dissipation is conventional heat conduction silicone grease plus copper foil heat dissipation. The internal support is pasted with graphite sheets for heat dissipation. The side key fingerprint identification is adopted, and an antenna board is added at the key position.
E analysis:
After disassembly, ewisetech comprehensively sorted and analyzed the materials of Huawei Changxiang Z machine.
Huawei Changxiang Z machine has a total of 1318 components, and the estimated material cost of the whole machine is USD 166.67 (about 1120 yuan), of which the main IC part accounts for 58.8% of the total cost. Let's take a look at the familiar ICs on the motherboard.
Motherboard front:
1: Media tek-mt6873v-tianji 800 processor
2: Sk hynix-h9hq53aecmmdar-kem-6gb memory 64GB flash memory
3: Media tek-mt6360mp-power management
4ï¼Media Tek-MT6635P-WiFi/BT/GPS/GLONASS/FM
5: Bosch BMI 160 acceleration sensor gyroscope
Motherboard back:
1: Media tek-mt6359v-power management
2: Media tek-mt6190w-rf transceiver
3: Skyworks-sky58254-11-rf front end module
4: GoerTek microphone
More detailed machine BOM can be obtained by moving ewisetech. Of course, there are more devices. Go and find out what's inside your mobile phone!
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