TeardownXiaomi Mi NoteXiaomi Mobile Phone

Xiaomi Mi Note Teardown

In this guide, I’ll explain how to disassemble Xiaomi Mi Note to remove the back cover, battery, rear camera, front camera, speaker and motherboard. Refer to this guide. You can repair your Xiaomi Mi Note.

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Xiaomi Mi Note uses curved glass to give it a graceful edge. It’s actually having glass fronts on both sides, use a guitar picks pry up the back cover.

The back cover is used 3D curved glass, and it’s fixed by snaps.

The Xiaomi Mi Note support dual cards dual standby

Remove all screws securing the metal shield.

Once the metal shield was removed, you can access the motherboard.

Remove the screws securing the sound chamber module.
Xiaomi Mi Note use of the Smart PA technology, making sounds and sound quality is better than other phones.

Now pull the double-sided adhesive tape, you can remove the battery.

Xiaomi Mi Note comes with a 4.4v, 2900mah Li-polymer battery. Battery cells come from LG.

The battery caddy is made of magnesium alloy.

The board is integrated a micro USB port, microphone, virtual keys light and a vibrator.

The microphone and the virtual key light

All chips were covered by metal shields.

On the front panel, we found a small device – a light refracting prism.

The rear camera and front camera

OIS Optical Image Stabilizer lens thickness of 5.08mm, it is the thinnest, and with two ISP chips.

Remove all metal shield on the motherboard.

ESS ES9018K2M 32-bit Stereo Mobile Audio DAC and TI OPA1612 Operational Amplifier
This set of audio chips is currently the most high-end chips in smartphones

Samsung 3GB RAM + 2.5GHz Qualcomm Snapdragon 801 processor

Qualcomm PM8941 Power management chip

Qualcomm PM8841 Power management chip

Dual SIM Card slots, support microSIM card and nanoSIM card

Toshiba 16GB ROM

Qualcomm WCD9320 Audio decoder chip

Qualcomm QFE1100 Envelope Tracking Chip

Qualcomm WTR1625L RF Transceiver, support GPS and China Beidou Navigation Satellite System

AVAGO ACP7600 RF power amplifier

Skyworks 85709-11 5GHZ Wi-Fi chip

Qualcomm WCN3680 Bluetooth 4.0 chip

For more information and guide, please go to Xiaomi Mi Note device page.

Source: it168

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  1. Hi I just bought a mi note 64gb with water damage. The phone turns on and operates with few errors.
    It only things issues I have found are…

    1. The external speaker does not work. No sound at all. The ear piece on calls works and the head phone jack works.

    2 the flash/ torch dosent work. The LEDs show no sign of life.

    3 The vibration does not work.

    4 The main camera is intermittent. The camera app crashes on opening most of the time. If I open Google camera app then dismiss the error and open the mi camera app it usually works. If I take a picture with the main camera then go to view the picture, the app will crash on return to camera. The front camera works all the time, for example using a selfie app.

    Every thing else, display, touch, WiFi , calls, mic, ect works.

    The purpose of me asking is to help identify where on the mother board damage may cause these errors. I understand it may be damage to the internals of a chip. I have already tried to clean the mother board with a toothbrush and 99% alcohol.

    Any ideas are welcome thanks.

  2. Hi, great experiment there. Could you tell how to open or replacing the on/off button flexible? I can remove the top case but I’m stuck at removing the button from the bezel. Should I tear down the screen also?

    1. I think you should remove the back cover, battery and motherboard to replace the on/off button module.

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