Xiaomi Mi 4 Disassembly

In this guide, I will explain how to disassemble the Xiaomi Mi 4 to remove the back cover, battery, camera, speaker, power button, screen, and motherboard.

Looking for more funny teardowns? Follow us on Facebook for all the latest repair news.

Specifications
Dimensions: 139.2 x 68.5 x 8.9mm
Weight 150 g
Display: 5.0-inch 1080 x 1920 pixels IPS LCD touchscreen
Internal: 16/64 GB ROM, 3 GB RAM
Rear camera: 13 MP, 4128 x 3096 pixels
Front camera: 8 MP, 1080p@30fps
OS: Android OS, v4.4.3 (KitKat)
Chipset: Qualcomm Snapdragon 801
GPU: Adreno 330

Tools needed.

To install a larger capacity battery, the Xiaomi Mi 4 adopts a curved back cover design to better accommodate the battery.

The back cover of the Xiaomi Mi 4 boasts excellent toughness, and there is a layer of graphene on its inner side to dissipate heat generated by the phone.

On the right side of the body, there is an antenna signal vent and a SIM card tray, and the frame is made of stainless steel.

Remove all screws securing the middle frame.

Insert a pry tool under the middle frame. Slide the pry tool to separate the middle frame from the phone.

The flash module is secured to the motherboard with screws.

The Xiaomi Mi 4 uses a 3080mAh Li-ion battery, and the battery cells come from Sony.

The power button and volume control button

Rear camera

The PCB board integrated an antenna, a micro USB port, and an LED light.

The micro USB port features a 6-pin design, and the Xiaomi Mi 4 supports 9V/1.2A fast charging.

The ATMEL MXT641T chip supports operation while wearing gloves and also allows touch control with wet fingers.
This chip also supports hover touch functionality with an effective distance of up to 2cm.

Most of the chips on the motherboard are covered by metal shields.

Toshiba 16GB eMMC ROM

Qualcomm WCD9320 audio chip

Qualcomm WCN3680 Wi-Fi, Bluetooth, FM radio chip, supports 802.11ac 5GHz Wi-Fi and Bluetooth 4.0.

The Qualcomm WTR1625 chip does not support LTE, but it has integrated GPS functionality.

Samsung 3GB RAM and Qualcomm MSM8X74AC 2.5ghz Quad Core processor
This chipset does not support LTE, as we mentioned earlier.

AVAGO ACPM-7600 dual-band Power Amplifier Module, designed for code division multiple access cellular

Qualcomm PM8941 power management IC

The Qualcomm PM8941 power management IC supports the Quick Charge 2.0 standard.

Infrared transmitter receiver

Via it168.com