Xiaomi Mi Note 2 Teardown

Xiaomi Mi Note 2 sports a 5.7-inch full-HD (1080×1920 pixels) OLED flexible display with a 77.2 percent screen-to-body ratio and a 110 percent NSTC gamut. It is powered by a 2.35GHz quad-core Snapdragon 821 Performance Edition SoC. It features a 4070mAh battery and Quick Charge 3.0.

The dual-SIM (Nano+Nano) Mi Note 2 features a 22.56-megapixel rear camera with a Sony IMX318 exmor RS sensor, an f/2.0 aperture, PDAF, and EIS with its own 3-axis gyroscope for 4K video stabilisation. On the front, it features an 8-megapixel Sony IMX268 exmor RS sensor, and an f/2.0 aperture, apart from a group selfie feature and Auto Beautify 3.0.

The first step is removing the back cover. Unlike the previous Xiaomi note, the back cover of Xiaomi note 2 is fixed to the middle frame by double-sided adhesive.
Separate the back cover a little bit with a suction cup, and then insert a pick under the back cover. Slide the pick along the edge until the back cover is taken off.

With the back cover removed, you can get access to the internal structure, there is a screw is covering by fragile stickers, if you damaged it, you will avoid warranty.

Although the back cover is fixed with double-sided adhesive, but still have some clips on the middle frame.

The back cover covered with a large number of thermal sponge and graphite thermal stickers.
There is a metal frame in the camera position to ensure that the camera is not offset.

On the protection plate of the motherboard have a NFC coil and a printed antenna, which are used for ensuring the overflow of the signal.

The bottom protection board is integrated a sound chamber, a vibration motor and printed antenna. The bottom of the fuselage is also an important channel to overflow the signal.

Disconnect the battery connector from the motherboard and remove it.

Xiaomi Mi Note 2 comes with a 4070mAh, 15.7Wh Li-polymer battery.

Remove the motherboard. We can see the main chip position of Xiaomi Mi Note 2 are coated with thermal grease, and there are graphite stickers on the back of the main camera and the metal roll cage.

Xiaomi Mi Note 2 uses Atmel’s MXT640U chip.

The handset, breathing light, noise canceling microphone and light distance sensor are integrated into a same module.

Front camera close-up. Xiaomi Mi Note 2 comes with a 8-megapixel Sony IMX268 Exmor RS sensor, and an f/2.0 aperture, apart from a group selfie feature and Auto Beautify 3.0.

Xiaomi Mi Note 2 features a 22.56-megapixel rear camera with a Sony IMX318 Exmor RS sensor, an f/2.0 aperture, PDAF, and EIS with its own 3-axis gyroscope for 4K video stabilisation.

The bottom board are integrated a USB Type-C port and some antenna contacts.

Xiaomi Mi Note 2’s Home key support fingerprint recognition, using the most popular capacitive fingerprint identification program.

Xiaomi Mi Note 2’s Home key using the ceramic plate, ceramic material has excellent wear resistance, so it can avoid being scratched.

Qualcomm Snapdragon 821 processor + SK hynix 4GB RAM
NXP 66T19 NFC Controller
Qualcomm PMI8996 power management chip
Qualcomm SMB13511 fast charging chip

Samsung 64GB USF2.0 ROM
Qualcomm WTR3925 RF
Qualcomm PMI8996 power management chip
Skyworks 7764-51 RF amplifier

Source: it168

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