Redmi K40 Game Enhanced Version Teardown: Shoulder Key Structure Unveiled

Redmi K40 Game Enhanced Version was officially released on April 27, equipped with MediaTek Dimensity 1200 chip, 6GB+128GB priced at 1999 yuan. This phone is specially designed for gaming, equipped with a 120Hz OLED flexible straight screen, with independent gaming antenna modules, pop-up shoulder buttons, X-axis linear motors, JBL stereo dual speakers, and other configurations, while being thin and light.

Redmi K40 uses hexagonal boron nitride aerospace-grade heat dissipation material, which is pasted on the back of the back cover and close to the main board for heat conduction. Although this mobile phone is very light and thin, with a thickness of only 8.3mm, it also has an NFC coil assembly and an infrared transmitter installed. It can be seen from the disassembly diagram that most of the mobile phone screws have been glued for after-sales identification whether there are traces of disassembly.

Remove the motherboard and the baffle above the camera, you can clearly see the camera components. The main camera of this phone is 64 Megapixels, innovatively using ED ultra-low dispersion optical glass lens, and at the same time with resin lens, to achieve a good shooting effect.

Uncovering the shield, the chip components of the Redmi K40 will be unobstructed. It can be seen that the phone uses Samsung’s LPDDR4X memory and Samsung UFS 3.1 flash memory particles. (The USF notation is incorrect in the video). It should be noted that the Dimensity 1200 SoC chip is located under the memory and cannot be seen directly.

The middle of the phone shell is facing the position of the processor, cover with a large-area VC soaking plate, and the upper part is coated with silicone grease for heat conduction. This method is conducive to quickly transferring the heat of Dimensity 1200 to the whole phone, ensuring the performance of the game.

As can be seen in the video, the lithium battery of the Redmi K40 Game Enhanced Edition is manufactured by Dongguan New Energy Technology Co., Ltd. (ATL), code-named BM56, with a typical capacity of 5065mAh and a rated capacity of 4965mAh. The battery has two sets of cables to ensure the high current of 67W fast charge.

In addition, a schematic diagram of the structure of the X-axis linear motor and the magnetic shoulder key appears in the disassembly video. The shoulder button of this phone is linked by a connecting rod, and the shoulder button automatically pops up after the toggle switch.

Redmi K40 game enhanced version uses an OLED flexible straight screen, and the COP packaging form folds the cable and chip to the back of the screen to achieve a 2.7mm ultra-narrow lower frame.

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The phone was first sold on April 30, and its sales exceeded 100,000 units in one minute. The mobile phone is currently being reserved and will be sold again at 10:00 on May 7th.