Replacement of the screen with Xiaomi Redmi: from the choice of the display to the calibration of the sensor

Why Change the Screen on Xiaomi Redmi and When to Change it

A cracked or broken display is one of the most common problems for Xiaomi Redmi owners, but it is not always necessary to replace the screen completely. For example, if colored stripes or artifacts appear on the matrix, the cause may lie in the plume or graphics chip, not in the display itself. On the other hand, deep cracks, a non-touch sensor or a completely black screen (when backlighting is working) are sure signs that the module is to be replaced.

Is it worth doing it yourself? The Redmi series is known for its maintainability, but there are nuances. AMOLED-screens (like Redmi) K50 or Note 12 Pro+) They require care when disconnecting plumes, and budget devices like Redmi. 10A This article will discuss the unique features of the screen replacement on Xiaomi Redmi, which you will not find in universal instructions, from choosing the original module to calibrating the new sensor after installation.

Which screen should I buy: original, OEM or copy?

The choice of display is half the success. There are three types of screens for Xiaomi Redmi on the market:

• 🔹 Original – removed from new smartphones in the factory, guarantee 100% compatibility, but are expensive (from 5 000 USD) ₽ Suitable for the Redmi Note 11 Pro, K60 newer.
• 🔹 OEM (factory ones, manufactured by the same suppliers as the originals, but without the Xiaomi logo. 20–30% The best choice for Redmi is the same. 9/10/12.
• 🔹 Aftermarket – cheap analogues (from 1,500) ₽), But with risks, poor color reproduction, a broken auto-brightness sensor, or a fall-off sensor in a month's time.

Where to buy? Proven sites:

• 🛒 AliExpress is cheap. OEM-Modules (look for sellers rated 98%+ and reviews in Russian).
• 🛒 Beru/Yandex Market – Original and OEM with a guarantee, but more expensive 15–20%.
• 🛒 Local service centers – sometimes sell used originals after replacement under warranty.

⚠️ Note: Redmi models with Always-on Display (e.g. Note 12 Pro)+ 5G) Non-original screens may not support this feature. AOD.

Replacement tools: what to prepare

Without the right tools, you risk damaging the board or plumes. Here's the minimum set:

In addition:

• 🧲 Magnetic mat - so as not to lose screws (in Redmi Note 11 there are 15 of them)+ different sizes!).
• 🔋 External battery (Power Bank) – to test the screen until full assembly.
• 📸 Smartphone for shooting the process - useful if you have to collect in reverse order.

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Before disassembling, take a picture of the location of all the plumes and screws – in Xiaomi Redmi, screws of different lengths are often used, and it is easy to confuse them.

Step-by-step: how to disassemble Xiaomi Redmi and replace the screen

The process of replacing the screen on all Redmi is similar, but there are nuances for different models.

1. Turn off the phone and remove it. SIM-card/memory card: battery not to be disconnected (risk of damage to connector).
2. Heat the edge of the screen with a hair dryer (60-80°C) for 2-3 minutes. Keep at a distance of 5-7 cm to avoid overheating.
3. Put the screen in a mediator, starting at the bottom edge (usually less glue), and put plastic wedges in there so that it doesn't stick back together.
4. Disconnect the plumes: Redmi 9/10 has 2 plumes (display + sensor); Redmi Note 11/12 has 3 plumes (backlight added); Redmi K50/K60 has 4 plumes (including the underscreen fingerprint sensor).

Move the details.

• 🔊 Speaker and microphone (stick on double-sided tape).
• 📶 Antenna contacts (in models with metal body).
• 👆 Touch button (if not built into the display).
• Install a new screen, plug in the plumes and check the operability before final assembly.

The assembly is done in reverse order. Use a new adhesive (e.g., B-7000) or double-sided 3M 9448A tape to lock the screen.

⚠️ Attention: In Redmi models with an infrared port (such as the Note 10 Pro), it is easy to damage the IR sensor when disassembling - it is located next to the display plume!

Calibration of the new screen: why the sensor is not working properly

After replacing the display with Xiaomi Redmi, there are often problems:

• 🎯 Inaccurate touches (press in one place and work in another).
• 🔄 Spontaneous swipes (screen "lives its own life").
• ❌ Multi-touch is not working (multiple fingers are not recognized).

This is because the new sensor is not calibrated to the firmware, and it's solved in two ways:

Method 1: Software calibration through the engineering menu

1. Open the phone keyboard and enter the code ##6484## (for Redmi on MIUI 13/14).
2. Select Touch Screen Test → Calibration.
3. Follow the instructions on the screen (usually press 5-7 points).
4. Reboot the phone.

Method 2: Calibration via Fastboot (for complex cases)

If the engineering menu does not help, you will need a PC and the Mi Flash Tool:

1. Download the Mi Flash Tool and install it.
2. Connect your phone in Fastboot mode (clip Volume Down + Power).
3. Enter the command: fastboot erase persist (this will reset the sensor settings).
4. Restart the phone and calibrate automatically.

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If after calibration the sensor still does not work properly, the problem may be in the unoriginal plume or damage to the controller on the board.

Typical Screen Replacement Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes that lead to additional costs.

• 🔥 Overheating the board -- if you dryer one area for too long, you can melt the plumes or damage the chips. Solution: heat evenly, taking breaks.
• 🔧 Loss of screws - Redmi Note 12 has screws 1.8 mm and 2.2 mm long. If you mix it up, the screen will dangle or push on the board. Solution: use a magnetic organizer.
• 💧 So if you get glue on your contacts, you get oxidation and you get bad signal. Solution: just put glue on the frame, not on the plumes.
• 📵 Untested screen: Buying a cheap copy without testing. Solution: Ask the seller for a video to check the display before sending it.

Another common problem is the backlights that are broken after replacement.

• The backlight plume is poorly connected (in the Redmi Note 11 Pro it is thin and fragile).
• The connector on the board is damaged (a microscope is needed for soldering).
• Incompatible screen (for example, Redmi 9 purchased a module from Redmi 9A).

How much does it cost to replace the screen in the service vs independently?

The price of a screen replacement in the service center depends on the model and type of display. Below is a comparison table for the popular Xiaomi Redmi (Moscow, 2026):

Self-replacement is beneficial, but consider the risks:

• ⚠️ Damage to the fee (repair will cost 3-5 thousand. ₽).
• ⚠️ Loss of water resistance (if not re-established adhesive layer).
• ⚠️ Denial of warranty (if the phone is warranty, it is better to contact the official service).

The bottom line: if you have a Redmi budget line (before the Note 10), a self-replacement is justified. For flagships (K60, Note 12 Pro+), it is better to trust the professionals.

FAQ: Frequent questions about changing the screen on Xiaomi Redmi