Autopsy Meizu MX2
Welcome, Habraludi! We had the opportunity to open the Meizu MX2 and figure out what and how it is inside. In this material, you will find a phased disassembly process, from removing the cover and metal casing to removing the protective panels from the main board, as well as a description of the components, so that you can get a general idea of ​​the "insides" of Meizu MX2.
The form and method of mounting the battery cover Meizu MX2 is almost a complete copy of the cover in the Meizu MX. It is fixed on the case with the help of the bracket, which is located on the left edge of the device, if you look at it, putting the screen down. As in the original Meizu MX, the lid is secure, but you cannot call it user-friendly. Remove the cover without knowing how to do it - it is not necessary, it is better to first look at the illustrations from the mini-instructions that comes with your smartphone. Using a plastic tool resembling a mediator, you need to push the bracket and take the corner of the lid from it, and then simply hold the mediator along the corner along the end and edge so that the lid finally moves away from the case.
')
The same bracket
The lid in the Meizu MX2 is two-layer, the inner layer is matte white plastic with a thickness of about 0.6 mm, the outer one is transparent plastic with a thickness of about 0.5 mm. Transparent plastic is superimposed on the matte - due to which the cover seems more voluminous. In the near future there will be replaceable covers of different colors for the Meizu MX2.
The holes for the camera lens are on the lid with a layer of protective transparent plastic, and on the inside there is an LED on a small PCB element with two contacts.
Protective plastic of the camera module and LED flash
We turn to the body of the smartphone. Unlike the original Meizu MX, where the battery and the main L-shaped board were immediately detected behind the removed cover, these elements are hidden by a protective metal casing in the Meizu MX2.
The casing is mounted on the case with the help of nine screws, and also blocked by a plastic block at the bottom. To remove the cover, you need to unscrew all the screws and this unit, it, in turn, is also attached to the case with two screws and latches.
Let's see what is in the lower area of ​​the smartphone, inside the plastic block and under it on the case. If you disassemble the block into two parts (it is composite and the halves are fastened with glue), you can see the external speaker.
From the outside of the block, the contour of the antenna embedded in plastic and located inside one of the halves of the block is noticeable.
Under the unit on the case is a small board with a microphone and a microUSB-connector in the center.
Remove the main L-shaped board, after which you can remove this small board from the lower area. Looking ahead to show what is on its reverse side. Closer to the center of the board, the sensor of the central and only “Home” key with a built-in LED, the sensor surface is covered with a thin layer of fluorescent dye, due to this, the “Home” button in Meizu MX2 glows even when the smartphone is completely off.
This is how it looks from the outside of the smartphone, if you look at the “Home” key.
When the plastic block is removed and all screws from the protective cover are twisted, it can be removed. Access to the battery and the main board.
The battery is mounted in the compartment with a thin strip of double-sided tape and is connected to the board with a short cable.
Here you can see the mount key volume.
The main L-shaped board of the smartphone is covered with protective screens made of aluminum, in addition, there are several rubber covers on the side of the cover.
We take out the board from the smartphone and remove the rubber pads from it, they are mounted on a double-sided tape. To remove protective screens from the board at home, without damaging them or the board itself and the elements on it, it does not seem real, we used special equipment for this.
General view of the board from two sides:
Let's go through its individual components and chips, starting from the outside of the board (looking towards the battery cover). SanDisk's 16, 32 or 64 GB production chip is located here, depending on the device version.
The SIMG HD chip barely visible on the motherboard is responsible for implementing the MHL (Mobile High-Definition Link) function. In the photo, he is immediately under the SanDisk memory chip.
Another important element on this side of the board is the chip, which is responsible for the operation of the camera or, on the other hand, the ISP chip (Image Signal Processor). In Meizu MX2, as well as in the previous model, ISP-chip Korea MBG048 made by Fujitsu is used. Not far from it, and the module of the main camera from Sony with the "reverse illumination" of the matrix (BSI) and a resolution of 8 million pixels.
To the right of the ISP chip and the hole next to it for the main camera installation is the Broadcom BCM 4430 chip, which is responsible for the operation of Wi-FI and Bluetooth interfaces. In the image below, this is a black chip to the right of the hole for the camera module.
Above the hole for the camera module is GPS / Glonass Broadcom BCM47511
A brief description of the GPS chip on the manufacturer's website
Now look at the other side of the board, the lower area. Here are two chips - memory (left, bottom) and the radio module (right, top). The Meizu MX2 uses a radio module Intel XG626 (formerly Infenion), the same is installed in the Samsung Galaxy Nexus. The same chip is installed in some USB-modems, for example, it is used in the Huawei E369 modem.
According to the new name system (after the acquisition of Infineon by the giant Intel), the chip is named XMM6260. Detailed information about it is on the Infineon website here , as well as on the xda-developers forum.
And below are the main features of the chip in a short file from Intel:
Description of the Intel XMM6260 chip
Now turn the board. Closer to the center there is a dual chip, on top of the LPDDR2 is Samsung's K3PE0E000M XGC2 RAM, from below — below — the “heart of the smartphone” —the CPU based on the Samsung Exynos 4412 platform, a similar platform used in the Samsung Galaxy Note II. On the official Samsung website there is a page describing the general features of the platform, here it is .
Samsung Exynos 4412 Quad Platform Description
Information on Samsung RAM modules
Near this chip is a compartment for installing a microSIM card. Below is another interesting element on the board - RFMD RF6260, which is responsible for the operation of 2G / 3G networks. In the description of the chip on the official website, it goes under the name "Quad-band Multimode Power Amplifier Module for 3G / 4G Mobile Devices" and, accordingly, among the features declared support for networks of the fourth generation LTE.
RFMD Chip RF6260 Description
In the upper area of ​​the board, just above the memory chip and the Samsung platform, is the “power management” chip - MAX77686.
Also here are two audio chips, a voice processor from Audience (AUD eS305) and the main one is WM8958E from Wolfson Microelectronics.
Wolfson is known for its portable audio chip. They are used in some tablets, for example, HP TouchPad and Lenovo ThinkPad Tablet, as well as in many Samsung products: Samsung Galaxy S III smartphones, Samsung Galaxy Note II and tablets. You can read more about the WM8958E audio chip on the manufacturer’s official website here .
Description of the Wolfson WM8958 audio chip
Detailed data on the characteristics of the voice processor can also be found in a separate pdf file:
Audience Voice Processor Description
The front camera module and two sensors: a light sensor and a proximity sensor are mounted on the same cable and are connected to the main board in its upper area.
At the upper end of the case inside you can see the earpiece in the center, to its left a 3.5 mm jack. Here is a small plastic insert, painted in the color of the metal frame in which it is inscribed. Insertion is required for better GPS signal transmission.
Exactly the same plastic insert is inside the case on the metal casing, it is also needed for more efficient operation of the antennas located under the casing.
Just below and to the right of the 3.5 mm headphone jack, you can see a small vibration motor of the smartphone.
Separately, I want to draw attention to the size of the battery in the Meizu MX2. The smartphone uses a Li-Pol B020 1800mAh / 6.75Wh battery of small size. For comparison, there is a battery installed in the Xiaomi Mi-Two - BM20 1930/2000 mFx / 7.1 / 7.4 Wh.
The body of the smartphone with the main board removed and the other components that can be relatively easily detached looks like this:
In conclusion, I would like to dwell on the stainless steel frame that underlies the Meizu MX2 case and provides the necessary rigidity of the structure. The frame is cut from a single piece of stainless steel (a special piece is taken) and processed.
After processing, part of the frame (middle layer) is polished, we see it, if you look at the middle of any end of the smartphone. Both extreme planes of the frame are covered with black lacquer, one of these areas is the bezel around the screen, the other remains inside and is not visible if you do not remove the battery cover.
Articles about the opening of the Meizu MX2 on Chinese resources:
Smartphone Meixu MX2 is a quality update of the first model, with a number of improvements, new features and ideas. Some of the components of the device has been replaced, some have remained the same, but in general it is a set of popular components used in many smartphones Samsung, LG and other manufacturers. Currently, the Meizu developers are improving the camera's performance, in particular, in the latest firmware they have reduced the noise level in the pictures. Work is also underway to optimize the power consumption of the Meizu MX2, users will notice positive changes in this area as soon as the final version of the firmware being tested is ready.
Related articles on the Meizu blog on Habrahabr:
We remind you that all information and news on current Meizu smartphones are published on our official website mymeizu.ru , and on the forum, you can ask questions on smartphones and get hints from device owners.
Official group MEIZU RUSSIA VKontakte *
* If you have a Vkontakte account and you use one of the Meizu smartphones (or do not even use it), join our group MEIZU RUSSIA. Recently, the group began to actively update and now there are a lot of interesting events, contests and polls related to Meizu.
The form and method of mounting the battery cover Meizu MX2 is almost a complete copy of the cover in the Meizu MX. It is fixed on the case with the help of the bracket, which is located on the left edge of the device, if you look at it, putting the screen down. As in the original Meizu MX, the lid is secure, but you cannot call it user-friendly. Remove the cover without knowing how to do it - it is not necessary, it is better to first look at the illustrations from the mini-instructions that comes with your smartphone. Using a plastic tool resembling a mediator, you need to push the bracket and take the corner of the lid from it, and then simply hold the mediator along the corner along the end and edge so that the lid finally moves away from the case.
')
The same bracket
The lid in the Meizu MX2 is two-layer, the inner layer is matte white plastic with a thickness of about 0.6 mm, the outer one is transparent plastic with a thickness of about 0.5 mm. Transparent plastic is superimposed on the matte - due to which the cover seems more voluminous. In the near future there will be replaceable covers of different colors for the Meizu MX2.
The holes for the camera lens are on the lid with a layer of protective transparent plastic, and on the inside there is an LED on a small PCB element with two contacts.
Protective plastic of the camera module and LED flash
We turn to the body of the smartphone. Unlike the original Meizu MX, where the battery and the main L-shaped board were immediately detected behind the removed cover, these elements are hidden by a protective metal casing in the Meizu MX2.
The casing is mounted on the case with the help of nine screws, and also blocked by a plastic block at the bottom. To remove the cover, you need to unscrew all the screws and this unit, it, in turn, is also attached to the case with two screws and latches.
Let's see what is in the lower area of ​​the smartphone, inside the plastic block and under it on the case. If you disassemble the block into two parts (it is composite and the halves are fastened with glue), you can see the external speaker.
From the outside of the block, the contour of the antenna embedded in plastic and located inside one of the halves of the block is noticeable.
Under the unit on the case is a small board with a microphone and a microUSB-connector in the center.
Remove the main L-shaped board, after which you can remove this small board from the lower area. Looking ahead to show what is on its reverse side. Closer to the center of the board, the sensor of the central and only “Home” key with a built-in LED, the sensor surface is covered with a thin layer of fluorescent dye, due to this, the “Home” button in Meizu MX2 glows even when the smartphone is completely off.
This is how it looks from the outside of the smartphone, if you look at the “Home” key.
When the plastic block is removed and all screws from the protective cover are twisted, it can be removed. Access to the battery and the main board.
The battery is mounted in the compartment with a thin strip of double-sided tape and is connected to the board with a short cable.
Here you can see the mount key volume.
The main L-shaped board of the smartphone is covered with protective screens made of aluminum, in addition, there are several rubber covers on the side of the cover.
We take out the board from the smartphone and remove the rubber pads from it, they are mounted on a double-sided tape. To remove protective screens from the board at home, without damaging them or the board itself and the elements on it, it does not seem real, we used special equipment for this.
General view of the board from two sides:
Let's go through its individual components and chips, starting from the outside of the board (looking towards the battery cover). SanDisk's 16, 32 or 64 GB production chip is located here, depending on the device version.
The SIMG HD chip barely visible on the motherboard is responsible for implementing the MHL (Mobile High-Definition Link) function. In the photo, he is immediately under the SanDisk memory chip.
Another important element on this side of the board is the chip, which is responsible for the operation of the camera or, on the other hand, the ISP chip (Image Signal Processor). In Meizu MX2, as well as in the previous model, ISP-chip Korea MBG048 made by Fujitsu is used. Not far from it, and the module of the main camera from Sony with the "reverse illumination" of the matrix (BSI) and a resolution of 8 million pixels.
To the right of the ISP chip and the hole next to it for the main camera installation is the Broadcom BCM 4430 chip, which is responsible for the operation of Wi-FI and Bluetooth interfaces. In the image below, this is a black chip to the right of the hole for the camera module.
Above the hole for the camera module is GPS / Glonass Broadcom BCM47511
A brief description of the GPS chip on the manufacturer's website
Now look at the other side of the board, the lower area. Here are two chips - memory (left, bottom) and the radio module (right, top). The Meizu MX2 uses a radio module Intel XG626 (formerly Infenion), the same is installed in the Samsung Galaxy Nexus. The same chip is installed in some USB-modems, for example, it is used in the Huawei E369 modem.
According to the new name system (after the acquisition of Infineon by the giant Intel), the chip is named XMM6260. Detailed information about it is on the Infineon website here , as well as on the xda-developers forum.
And below are the main features of the chip in a short file from Intel:
Description of the Intel XMM6260 chipNow turn the board. Closer to the center there is a dual chip, on top of the LPDDR2 is Samsung's K3PE0E000M XGC2 RAM, from below — below — the “heart of the smartphone” —the CPU based on the Samsung Exynos 4412 platform, a similar platform used in the Samsung Galaxy Note II. On the official Samsung website there is a page describing the general features of the platform, here it is .
Samsung Exynos 4412 Quad Platform Description Information on Samsung RAM modulesNear this chip is a compartment for installing a microSIM card. Below is another interesting element on the board - RFMD RF6260, which is responsible for the operation of 2G / 3G networks. In the description of the chip on the official website, it goes under the name "Quad-band Multimode Power Amplifier Module for 3G / 4G Mobile Devices" and, accordingly, among the features declared support for networks of the fourth generation LTE.
RFMD Chip RF6260 DescriptionIn the upper area of ​​the board, just above the memory chip and the Samsung platform, is the “power management” chip - MAX77686.
Also here are two audio chips, a voice processor from Audience (AUD eS305) and the main one is WM8958E from Wolfson Microelectronics.
Wolfson is known for its portable audio chip. They are used in some tablets, for example, HP TouchPad and Lenovo ThinkPad Tablet, as well as in many Samsung products: Samsung Galaxy S III smartphones, Samsung Galaxy Note II and tablets. You can read more about the WM8958E audio chip on the manufacturer’s official website here .
Description of the Wolfson WM8958 audio chipDetailed data on the characteristics of the voice processor can also be found in a separate pdf file:
Audience Voice Processor DescriptionThe front camera module and two sensors: a light sensor and a proximity sensor are mounted on the same cable and are connected to the main board in its upper area.
At the upper end of the case inside you can see the earpiece in the center, to its left a 3.5 mm jack. Here is a small plastic insert, painted in the color of the metal frame in which it is inscribed. Insertion is required for better GPS signal transmission.
Exactly the same plastic insert is inside the case on the metal casing, it is also needed for more efficient operation of the antennas located under the casing.
Just below and to the right of the 3.5 mm headphone jack, you can see a small vibration motor of the smartphone.
Separately, I want to draw attention to the size of the battery in the Meizu MX2. The smartphone uses a Li-Pol B020 1800mAh / 6.75Wh battery of small size. For comparison, there is a battery installed in the Xiaomi Mi-Two - BM20 1930/2000 mFx / 7.1 / 7.4 Wh.
The body of the smartphone with the main board removed and the other components that can be relatively easily detached looks like this:
In conclusion, I would like to dwell on the stainless steel frame that underlies the Meizu MX2 case and provides the necessary rigidity of the structure. The frame is cut from a single piece of stainless steel (a special piece is taken) and processed.
The process of manufacturing a metal frame for the Meizu MX2 from the blank, photo
After processing, part of the frame (middle layer) is polished, we see it, if you look at the middle of any end of the smartphone. Both extreme planes of the frame are covered with black lacquer, one of these areas is the bezel around the screen, the other remains inside and is not visible if you do not remove the battery cover.
Articles about the opening of the Meizu MX2 on Chinese resources:
- Meizu MX2 disassembly on mobile.it168.com
- Meizu MX2 disassembly at review.xda.cn
- Translation of an article from review.xda.cn to English
Smartphone Meixu MX2 is a quality update of the first model, with a number of improvements, new features and ideas. Some of the components of the device has been replaced, some have remained the same, but in general it is a set of popular components used in many smartphones Samsung, LG and other manufacturers. Currently, the Meizu developers are improving the camera's performance, in particular, in the latest firmware they have reduced the noise level in the pictures. Work is also underway to optimize the power consumption of the Meizu MX2, users will notice positive changes in this area as soon as the final version of the firmware being tested is ready.
Related articles on the Meizu blog on Habrahabr:
We remind you that all information and news on current Meizu smartphones are published on our official website mymeizu.ru , and on the forum, you can ask questions on smartphones and get hints from device owners.
Official group MEIZU RUSSIA VKontakte ** If you have a Vkontakte account and you use one of the Meizu smartphones (or do not even use it), join our group MEIZU RUSSIA. Recently, the group began to actively update and now there are a lot of interesting events, contests and polls related to Meizu.
Source: https://habr.com/ru/post/168795/
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