Samsung Galaxy Alpha is a special Samsung mobile phone. It has many key functions of Galaxy S5, and is also the first Samsung smart phone with metal design. Its frame is made of aluminum metal, and its back is still plastic, but not leather plastic. For such a Samsung mobile phone that has greatly changed in appearance, what about its interior?
hardware configuration
Size: 132.4 x 65.5 x 6.7 mm, 115g;
Screen: 4.7 inch 720p SuperAMOLED screen, 320ppi;
Processor: 8-core Exynos 5 Octa 5430 chip (one 1.8GHz Cortex-A15 quad core and one 1.3GHz Cortex-A7 quad core), Mali-T628 MP6 GPU;
Storage: 32GB body storage without microSD card slot;
Camera: 12 megapixel autofocus camera, 31mm focal length, f/2.2 aperture, LED flash; 2.1 megapixel front camera;
System: Android 4.4.4 Kitkat, using TouchWiz UI;
Battery: 1860mAh removable battery;
Sensor: fingerprint sensor, heart rate sensor
Galaxy Alpha Unwrapping
▲ There is a heart rate sensor beside the rear camera. It is convenient to detect the heartbeat rate of users.
▲ There is a circle of smooth metal frame on the side of the body, which is the first Samsung mobile phone with metal elements. However, I hope Samsung can learn the painful lesson from Apple's Antenna Gate.
▲ The shape of Galaxy Alpha is not very different from that of iPhone 5, but a bar shaped home key on the front panel reminds people that this is not an Apple phone.
▲ From the bottom of the phone, Galaxy Alpha is similar to the iPhone 6 machine. The speaker grille, data port (Micro USB 2.0, the proprietary lightning standard on Alpha and iPhone) and microphone are all in roughly the same place.
▲ Galaxy Alpha adopts the design of removable back cover and replaceable battery, which greatly increases the convenience of users. Of course, the disadvantage of this design is that it is difficult for the product to achieve a high level of dust and water resistance. Of course, Galaxy Alpha is not equipped with IP57 level dust and water resistance.
▲ The battery can be easily removed by removing the back cover. The rated voltage of the Galaxy Alpha lithium-ion battery is 3.85 V and 1860 mAh.
▲ Disassembly of Galaxy Alpha is extremely simple, just remove a few screws on the middle frame.
▲ Since the front panel is closely fitted, we use a little heat on the edge of the rear shell, and then use tools to gradually pry it apart.
▲ Only by removing the front panel can we see the mainboard and other internal components camera, vibrator, keys and speaker.
▲ The fingerprint scanning function is also designed on the home key, The cable near the capacitive touch button makes disassembly more difficult.
▲ The thickness of the front panel is only 1.4 mm.
▲ The only electrical element on the front panel is the touch screen controller.
▲ Remove some flat cable buckles and the plastic bayonet on the back panel to remove the middle frame with the main board. Galaxy Alpha is an obvious sandwich structure.
▲ Disconnect several connectors and a screw to easily separate the main board from the middle frame.
▲ Disconnect the flat cable between the rear camera and the motherboard.
▲ Galaxy Alpha has a 1200w pixel rear camera. From the perspective of camera size, this camera should be the same as the Galaxy S5.
▲ 210w pixel front camera.
▲ Close observation of Galaxy Alpha motherboard
The maroon area is Samsung's Exynos5430 system chip (marked KMR2W0009M)
Orange area is Intel PMB9933 P10 DS XG726G H1429 F429A549
The yellow area is the Max77804K (PSoC of the system)
The green area is Broadcom BCM4753IA1, GPS receiver
The blue area is Ousheng Microelectronics WM5110E low-power audio system
▲ Front of packaged circuit board of integrated circuit
The maroon area is Intel PMB5747
The orange area is Samsung S2MPS13 power management IC module
The yellow area is SWKT GRG78 antenna switch module
▲ Integrated circuit board at the bottom of mobile phone
Miniature USB2.0 port in the maroon area
The orange area is the capacitive touch soft key
The yellow area is the microphone
The green area is the antenna spring contact
The blue area is CapSense capacitive touch sensor controller
The purple area is the home button switch (on the back)
▲ After removing the integrated circuit board at the bottom of the mobile phone, you can peel the home key cable.
▲ There is a rubber washer at the bottom of the rear panel, which should prevent the headphone jack from flooding.
▲ Finally peel off the antenna cables on both sides of the rear panel. Although the risk of stripping cables with such small size is high (components are easily damaged), the components that can be replaced independently make maintenance easier and cheaper.
▲ Remove the loudspeaker.
▲ Remove the vibrator.
▲ Disassemble the family photo of Samsung Galaxy Alpha.
Repair summary of Samsung Galaxy Alpha:
The battery is very easy to remove and replace.
The display screen is the first component. However, a large number of adhesives and ultra-thin display glass are more solid than previous devices.
After the equipment is turned on, several components are modular and easy to replace, such as camera, power button switch, vibration motor and loudspeaker.
Due to the use of a large number of adhesives, patient heating and careful cable cutting are required during the disassembly process.
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