Today, the front of the phone "full screen" has become a major trend in the design of smart phones, in order to achieve this goal, the major manufacturers have come up with different designs. After a lot of mobile phone camera, Nubia gave a set of "full-screen schemes" in Nubia, just join a piece of secondary screen on the back of the phone, so that the mobile phone became a double-screen mobile phone, the rear camera is also It can be a premium, perfectly solved the problem of pre-camera placement. How is the inside of that dual screen phone? This issue of breaking will bring you Nubia X's dismantling.
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Decomposition highlight:
Front and rear screen design
Bilateral fingerprint recognition
Configuration list:
SOC: Qualcomm Snapdragon 845 Bad Nuclear Processor L 10nm Process
Main screen: 6.26 inch TFT screen L resolution 2280 × 1080 l 86.5%
Sub-screen: 5.1 inch OLED screen L resolution 1520 × 720 l screen for 58.8%
Memory: 6GB of memory to run + 64GB flash memory
Rear: 16 million pixels + 24 million pixels
Battery: 3700mAh Li-Ion battery
Features: Front and rear double-sided screen L on both sides fingerprints L Corning 3 generation glass screen panel
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NUBIA X BOM Table:
Nubia X 6GB + 64GB version of the national line is priced at 3299 yuan.
From the BOM table, Nubia X main components are from Qualcomm, while the storage schemes have chosen Samsung, which is a "regular operation" of most flagship models today, and there is no highlight. In the BOM table, we have seen a vendor that often provides RF and front-end modules for mobile phones - Skyworks.
Skyworks (Sijia News) is a semiconductor company in the United States. The company was founded in 1962 and is headquartered in Wham City, Massachusetts, mainly engaged in design, manufacturing and selling semiconductor products. Among them, the company produced RF transceiver, front-end module and other components are more widely used by major mobile phone manufacturers on smartphones with different positioning.
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Detailed dismantling:
NUBIA X uses a rear demolition design using a hot air gun to heat the back cover. Since the sub-screen is on the back cover, you should pay attention to disconnect the BTB interface in time when opening the rear cover. The BTB of the sub-screen has a metal cover protection, so it is necessary to unscrew the screw on the metal protection cover when disconnecting the BTB interface.
After opening the back cover of the phone, you can see that Nubia X is still the most classic three-segment design, the main board and speakers are fixed by screws, and the battery is supported by double-sided adhesive. The RF line is fixed through the black tape and is connected to the speaker with solder wire.
Unscrew the screw to remove the motherboard and sub-plate, the motherboard is attached to the copper foil and applied to pink heat dissipation silicone. The sub-plate and the vibrator are connected by solder, and between the vibrator and the inner support is used to fix the conductive tape.
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The motherboard and the sub-board are connected by a soft plate, which is located on the inner support of the bottom of the battery, and the soft plate is fixed using the conductive cloth. The handset located on the top of the phone uses a foam as a fixed material.
The button, the fingerprint unlock, etc. should be disassembled at this time, but since these components are fixed to the groove by a steel sheet, this steel plate extends extends to the side of the main screen, so we need to take the main screen. . The main screen and the inner support are fixed to fix, so it is relatively convenient when dismantling. A graphite sheet that helps heat dissipation is attached to the position of the corresponding screen.
After removing the screen, we retest the phone and remove the fixed button and the steel sheet of the fingerprint identification module and take these modules.
Main components analysis:
Positive:
Red: QUALCOMM-SDM845-Bar Nucleus Processor
Yellow: Samsung-K3uh6H60AM-AGCJ-6GB of memory
Green: Samsung-Klucg2k1ea-64GB flash memory
Cyan: QUALCOMM-PM18998-Power Management Chip
红: QUALCOMM-WCD9340-audio encoder chip
Blue: QUALCOMM-WCN3990-WiFi / Bluetooth / radio chip
Orange: STMicroelectronics-six-axis accelerometer + gyroscope
Light blue: Skyworks-SKY-77658-11-multi-mode multi-frequency power amplifier module
Purple: SkyWorks-SKY-77657-11- Multi-mode multi-frequency power amplifier module
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Back:
Red: QUALCOMM-PM845-Power Management Chip
Yellow: QUALCOMM-PM8005-Power Management Chip
Mingya: Microphone
Orange: QUALCOMM-SDR845-radio frequency transceiver chip
Green: Skyworks-Sky77916-21-RF simulator
Cyan: AKM-AK09918-3 Axis Electronic Compass
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Nubiax uses a very typical three-stage structure, so there is not much special in the main board design. In addition to "taking the empty" placement, the overall design is very positive.
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Module information
Screen:
The Nubia X main screen designed with dual-screen design uses the third generation of Corning, the screen size is 6.26 inches, the TFT material, the resolution is 2280 × 1080, and the screen model is BS063TPM.
The sub-screen is also from the third generation of the three generations of Corning. The screen size is 5.1 inches, OLED material, and the screen resolution is 1520 × 720, the model is BF051FBM.
According to our prices I found out from suppliers, Nubia X's main screen price is $ 26.8, and the secondary screen price is $ 13.5, while the dual-camera price is $ 15.15.
In general, the price of the camera module will rise around $ 10, depending on other factors such as the number of cameras. It can be seen that Nubia X uses a dual-screen design and cut off the front camera. The cost of the parts is in fact with only one-screen screen, and the cost of the front camera phone is not large.
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Fingerprint recognition module:
In terms of fingerprint recognition, Nubia X uses bilateral fingerprint identification design, both fingerprint recognition modules are manufactured by Fudi Light, and the fingerprint recognition module model is FPC1059.
NUBIA X Disassembly Rating:
Summary:
Although Nubia X uses a dual-screen design, it is not difficult to find that by dismantling is actually, the machine is only added a piece of sub-screen at the rear cover, and the large direction of design is still the most classic three-stage structure. Therefore, Nubia X is actually a conventional design route in internal design, and there is no more amazing.
The Nubia X machine is fixed by 18 screws, and there is more adhesive to fix each component. Among them, the speakers and sub-plates, RF lines are connected to the sub-plates, which is a more rare connection in the popular mobile phones in recent years.
(Source: WeChat public account collection)
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