Mobile Reviews

Xiaomi Redmi Note 4 Teardown: What lies inside it?

In August last year, Xiaomi joined hands to China Mobile to release the Redmi Note 4 in Beijing, the new phone is equipped with 4000mAh battery and brand-new MIUI 8 system. It also adopts the CNC full-metal unibody fuselage and nano-injection molding antenna that are said to be usually used on the mid-range and high-end phones, and the whole phone well reflected the “Symmetrical aesthetics”, from the appearance point of view, the Redmi Note 4 indeed made an obvious progress, then whether its internal structure also made the same improvement? Here follow me to take a look at the disassemble diagram of the Redmi Note 4.

Redmi Note 4 uses a 5.5 inches 1080p full lamination screen, covered with 2.5D glass, above the screen, we can see the front-facing camera, the receiver and the sensor, they are completely symmetrical. At the bottom, the speaker and microphone also strictly followed the symmetrical design, the left and right two sides respectively have six openings, using MicroUSB port.

OK, let’s go straight to the point!

Xiaomi Redmi Note4 Disassemble:

Step1: Before starting to tear down the Redmi Note4, we need to power off the phone.

Step2: At the bottom of the fuselage, there are two small hexagonal screws, first of all to remove them.

Step3: You need to use the card pin to remove the SIM card slot on the side of the fuselage, as shown in the image.

Step4: We need to separate the screen from the back cover, using the Suction Cup to gently pull the screen up, at the same time, insert guitar picks to open a gap, and then, slide the opening tool around the edges of the screen, pry up the back cover.

Step5: From bottom to top, open the rear shell, note that the flex cable is placed at the top of the fuselage, don’t force too much!

Step6: Use the tweezers to disconnect the connection interface between the flat cable and the motherboard.

Step7: After removing the back cover, we can see the Redmi Note 4 internal structure, using a black motherboard.

Step8: Remove all screws on the motherboard, note that: below the Xiaomi logo, there is a hidden screw. As shown in the image.

Step9: Remove the screws from the vibrator, the small gasket on top can be removed!

Step10: Find the Xiaomi logo, below the logo, we can see a hidden screw, and then, screw off this hidden screw.

Step11: Use the tweezers to disconnect the antenna circular slot carefully.

Step12: Continue to disconnect the flat cable card slot on the motherboard.


Step13: Pry off the black card slot lock, disconnect the volume key flat cable.

Step14: Carefully remove the ribbon cable. As shown in the image.

Step15: Still pry off the card slot lock, take out a thick flat cable.

Step16: As shown in the image, the ribbon cable can be pulled out directly.

Step17: Remove the front-facing camera, do not force too much!


Step18: The rear-facing camera and the front-facing camera, the rear-facing camera are from OV.


Step19: Redmi Note4 motherboard close-up, the overall process is relatively good, the processor and other important components equipped with shielding case.


The other side of the motherboard, attached to a large area of graphite heat sink, to provide the protection for the Helio X20’s heat dissipation.


Step20: As shown in the image, the lower part of the motherboard, remove several square head screws, note that: below orange Xiaomi logo, there is still a hidden screw.


Step21: Open the shell, this part of the motherboard appears in front of our eyes.


Step22: Here are all steps about how to tear down Redmi Note 4. On the whole, the Redmi Note4 internal structure is still relatively solid, the disassemble difficulty is relatively low, but note that: when removing the back cover, do not overexert yourself! You need to find some hidden screws, and then, you can safely tear down the phone.

Xiaomi Redmi Note4 LCD + Touch screen replacement:×1080-fhd-5-5-inch-smartphone.html

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