Replacement of touchscreen on Xiaomi: full instructions from disassembly to calibration

Touchscreen is one of the most vulnerable parts of Xiaomi's smartphone. Falling from a height, a strong hit or even a bad press can lead to cracks, "dead zones" or complete sensor failure, POCO or flagship model Xiaomi 14 ceased to respond to touch, do not rush to carry the device in the service: with the tools and patience to replace the touchscreen can be your own.

In this article, we will look at the entire process, from fault diagnosis to final calibration of the new screen, and learn how to choose the right part (original vs. What tools will be needed for careful disassembly, and how to avoid the typical errors that can turn a smartphone into a “brick”. AMOLED-displays (for example, Xiaomi 13 Pro or Redmi) K60), where the touchscreen replacement requires caution due to the fragile matrix.

We warn you right away: the procedure requires precision and accuracy, and if you've never taken a smartphone apart, practice on an old device or watch a video disassembly of a particular model.

1. Diagnosis: Is it really the touchscreen to blame?

Before replacing, make sure that the problem is in the touch layer, not the plume, motherboard or software failure.

• 🔍 Cracks on the screen with impaired response to touch in the area of damage.
• 👆 «Dead Zones – Part of the screen does not respond to touch, although the image is displayed.
• 🔄 Spontaneous taps or “ghost” swipes without your involvement.
• 📵 Complete lack of response to touch when the display is running.

If the screen is not responding at all, check:

1. Connect charging – it is possible that the smartphone is discharged and the screen is simply turned off.
2. Connect the mouse to the OTG (adapter USB-C/Type-C → USB-A). If the cursor appears - the problem in the touchscreen or its plume.
3. Reboot the device in Restore Mode (Power) + If the sensor is running in the Recovery menu, it's the software (reset or flash).

⚠️ Note: On Xiaomi models with LCD-screens (for example, Redmi Note 10) touchscreen often goes separately from the display, and on the screen AMOLED (for example, Xiaomi 12T) — It's a single module. You need to specify the design before you buy the parts, or you're at risk of buying the parts you don't need.

2. Selection of touchscreen: original, copy or OEM?

The quality of the spare part depends not only on the tactile return, but also on the durability of the repair.

Where to buy:

• 🛒 Xiaomi’s Official Service Centers – Original Parts, But Expensive.
• 🔧 Local parts stores – you can touch the product before buying, but prices are higher than those of the Chinese.

Critical: for models with AMOLED-displays (for example, Xiaomi 13 Ultra) buy touchscreen only with pre-painted OLED-Self-driving sticker requires a dust-free camera and experience!

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Check compatibility by the exact model name before buying (e.g. Redmi Note 11 Pro). 5G Redmi Note 11 Pro — different parts! → The phone. → Model.

3. Replacement tools: what will be needed

Without the right tools, you risk damaging plumes, leaving scratches on the body, or breaking latches.

• 🔧 Screwdriver kit: cross-haired (PH00), flat (1.5 mm), five-pointed (Pentalobe) for some models.
• 📱 Plastic blades / mediators - for careful tweaking of the body and plumes.
• 🔥 Dryer or thermo-air station - for softening the glue (temperature 60-80)°C).
• 🧲 Magnetic mat or organizer – so as not to lose cogs.
• 🧴 Isopropyl alcohol (90%+) — Cleaning contacts and removing glue residues.
• 📦 New bilateral scotch or glue B-7000 — touchscreen.

In addition, the following may be useful:

• 🔍 Lupe or magnifying glass - for working with small contacts.
• 📏 Thin scraper made of plastic or metal – to remove old glue.
• 🔋 External battery (Power Bank) – if the battery is discharged, and the smartphone does not turn on.

⚠️ Note: On Xiaomi models with protection IP53 (For example, Redmi Note 12) after replacing the touchscreen, the dust protection will be violated. If it is critical, use a sealant or avoid replacing yourself.

4. Step-by-step dismantling of the smartphone

The disassembly process varies from model to model, but the overall scheme is the same.+ (Similar to most Xiaomi with a non-removable battery).

Step 1. Turn off the phone and remove the back cover

1. Turn off the power and remove the tray for SIM-map.
2. Heat the edge of the back cover with a hair dryer (1-2 minutes) to soften the glue.
3. Carefully tuck the lid with a plastic spatula, starting at the bottom edge (near the connector). USB-C).
4. Disconnect the battery plumes and the back cover (if any).

Step 2. Turn off the battery.

This is a must-do step, otherwise you risk closing the charge! Find the battery connector (usually at the bottom) and gently unplug it with a plastic blade.

Step 3. Remove the motherboard

1. Unscrew all the screws that fix the board (they can be of different lengths - remember where it was!).
2. Disconnect all the plumes: display, cameras, speakers. NFC (for example, POCO F5) Be careful – the antenna is often glued to the back cover.
3. Carefully raise the fee and put it aside (do not put it on metal surfaces!).

Step 4: Dismantling the old touchscreen

Heat the screen with a hair dryer around the perimeter until the glue softens. Push the touchscreen with a plastic blade starting at the corner. Don't force it -- if the screen doesn't lend itself, heat it longer. AMOLED-Be careful: the matrix is thinner and fragile LCD!

5. Installation of a new touchscreen and assembly

Before installing the new screen:

1. Clean the frame of the smartphone from the residues of glue with isopropyl alcohol.
2. Check the integrity of the display and touch screen plumes (they should not have ruptures or oxidations).
3. If you bought a touchscreen without a glue layer, apply B-7000 or bilateral tape around the frame.

Installation:

1. Connect the new touchscreen plume to the motherboard. Make sure the contacts match (on some models, the display plumes and the touchscreen are separate!).
2. Carefully place the screen on the frame, aligned at the edges. Press evenly so that the glue grasps.
3. Connect the battery and turn the phone on in test mode (not collecting it completely) to check the response to touch.

Assembly: Repeat all the steps in reverse order.

• 🔩 Tightening of screws - do not pull, so as not to tear the thread.
• 📶 Connecting Wi-Fi antennas and NFC (if).
• 🔋 Fixing the battery plume - it should sit tight, without backlash.

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Turn on the phone and immediately check: the reaction to touches all over the screen, the display (if there are any broken pixels), the camera and speakers. If something does not work, disassemble the device again and check the connection of the plumes.

6. Calibration of the touchscreen after replacement

Even the original touchscreen may require calibration, especially if you notice:

• 🎯 Imaculate pressing (cursor shifted relative to the finger).
• 🔄 Delays in swipes or double touches.
• 📱 Spontaneous clicks in one corner of the screen.

Method 1. Automatic calibration (for most models)

1. Go to the engineering menu: dial in the phone keyboard ##4636##.
2. Select the Testing item → Touch Screen (the name may be different).
3. Follow the instructions on the screen: usually click on the dots that appear.

Method 2: Manual calibration through ADB (for advanced users)

adb shell settings put system pointer_location 1


adb shell am start -n com.android.settings/.TouchCalibrationActivity

These commands include displaying touches (dots on the screen) and triggering the calibration menu. ADB read in FAQ.

Method 3: Resetting settings

If the calibration does not help, reset through Settings. → System system → Reset settings. Don't forget to back up!

⚠️ Attention: On models with MIUI 14+ If you change the touchscreen, you might get a warning, "Unoriginal display." It's not a mistake, it's just a reminder to replace it. ADB root-access.

7.Typical mistakes and how to avoid them

Even the most experienced craftsmen make mistakes sometimes, and here are the most common ones:

A few more tips:

• 🧹 Work in a clean, well-lit place, and the dust under the touchscreen will be noticeable and may interfere with touch.
• 🔋 If the battery is swollen, do not try to bend it - replace it before installing a new screen.
• 📸 Take a picture of the disassembly process at each stage – this will help with the assembly.

FAQ: Frequent questions about replacing the touchscreen