Replacement of the screen on Xiaomi Redmi Note 9 Pro: detailed instructions with photos and tips

Why Redmi Note 9 Pro screen needs replacement and when it’s justified

The Xiaomi Redmi Note 9 Pro screen is one of the most vulnerable parts of the smartphone. Falling from a height of only 50 cm on asphalt or hitting a hard surface often leads to matrix cracks, broken touch zones or complete failure of the display. But not always a broken screen means you need to buy a new phone. In 80% of cases, it can be replaced yourself, saving up to 70% of the cost of repairs at the service center.

The main signs that the display module needs replacement:

• 🔧 Cracks on glass with violation of the sensor layer (does not respond to touching).
• 🖥️ Image artifacts: stripes, flickering, broken pixels or a black screen when the device is running (sound / vibration is there).
• 🔋 The lights are not turned on, but the phone is loading (signals are heard).
• 💥 Internal damage after falling (for example, detachment of the plume).

It is important to distinguish software glitches from physical damage.If the Redmi Note 9 Pro screen doesn't work after the upgrade MIUI Or reset your settings, try hard reset first. If the problem persists, it's a 99% hardware malfunction.

Which screen to choose for Redmi Note 9 Pro: original vs analogues

The choice of display depends on 50% of the success of the repair. for Xiaomi Redmi Note 9 Pro (model) M2003J6A1G or M2003J6B1G) Three types of screens are suitable:

Where to buy:

• 🛒 Official Xiaomi dealers (guarantee on original parts).
• 🌍 AliExpress (Xiaomi Mall Store or other stores) DYS Store - check reviews!).
• 🔧 Local service centers (sometimes sell used originals after replacement).

⚠️ Note: Screens for Redmi Note 9 Pro and Redmi Note 9S Not interchangeable because of different lighting plumes! Clarify the model by sticker under the battery or in settings (Settings) → The phone. → Model).

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Before buying, ask the seller to send a photo of the screen plume - it should match yours (24-pin connector for Note 9 Pro).

Screen Replacement Tools: What You Need

To replace the screen on Redmi Note 9 Pro, prepare the following set:

Screwdriver cross (PH00) for screws of the body |

Plastic mediators (2-3 pieces) for analysis|

Screen suction cup (∅ 5-7 cm)|

Tweezers with curved ends|

Dryer or thermo-air station (power 300–500W)|

Double-sided scotch (3M or similar) to fix a new screen|

Isopropyl alcohol (90%+) clean-up|

Torx screwdriver (T3) for plumes (if required)-->

The cost of a full set of tools is about 1,500-2,500 ₽. If you plan to repair smartphones regularly, it makes sense to buy a kit for repairing phones on AliExpress (price from 2 000). ₽ For one-time repairs, you can do with a minimum set: screwdriver, mediators and hair dryer (for example, a construction for 800). ₽).

What can't be done:

• 🔥 Use a household hair dryer – it does not heat evenly and can melt the plastic of the case.
• 🔪 Poking up the screen with metal objects (knife, screwdriver) - this will damage the plumes.
• 🧴 Apply superglue instead of bilateral tape - the screen will not be able to remove without damage.

Step-by-step: how to disassemble the Redmi Note 9 Pro and remove the old screen

The screen replacement process takes 1-2 hours, and follow the instructions strictly in steps to avoid damaging the plumes or motherboard.

Step 1: Turn off and prepare the phone

Before the disassembly:

1. Turn off your smartphone (Put the power button on) → "Turn it off").
2. Extract. SIM-card and memory card (the tray is on the left end).
3. Remove the cover and unplug the protective film (if any).
4. Rub the body with alcohol - this will remove the fat and make it easier to glue the new screen.

Step 2: Heating and Removing the Back Cover

The Redmi Note 9 Pro is glued around the perimeter to open it.

1. Heat the back cover around the edges with a hair dryer (temperature 70–80)°C, distance 5-7 cm).
2. Insert the plastic mediator into the gap between the lid and the frame (start at the bottom corner where the connector is). USB-C).
3. Carefully drive the mediator along the body, separating the glue. Don't push too hard, there are antenna wires inside!

Step 3: Shutting off the battery and plumes

After the lid is removed:

1. Unscrew 10 screws that fix the metal plate (use the PH00 screwdriver).
2. Take the slack off and put it aside (don’t lose the screws!).
3. Disconnect the battery connector with tweezers (it is located at the top of the board, indicated by a red circle).
4. Turn off the screen plumes and touchscreen (they are located under metal protection in the center).

⚠️ Warning: If you don't turn off the battery before working with the plumes, a short circuit can burn the motherboard.

Step 4: Removing the Old Screen

You can now remove the damaged display:

1. Heat the front of the phone with a hair dryer (especially at the edges).
2. Suction the screen from the bottom (where the Home button).
3. With a mediator, separate the glue around the perimeter. Be careful, there's a plume of speaker at the top!
4. Once the screen is separated, put it aside, and if the matrix is intact, it can be sold for spare parts.

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Don't pull the screen by force, because if it doesn't move away, the glue won't warm up enough. It's better to heat up for another 1-2 minutes than to tear the plumes.

Installation of a new screen and assembly of the phone

Before installing the new display, clean the phone frame of the residue of old glue. Use isopropyl alcohol and a lilac-free wipe. Don't use acetone or solvents - they will damage the plastic!

Step 1: Prepare a new screen

Check the configuration of the new display:

• 📱 Screen with touchscreen (should be in protective film).
• 🔗 Trains (usually already connected to the matrix).
• 🧩 Double-sided Scotch (if not, buy separately, for example, 3M 9448A).
• 🔨 Screws and plugs (in cheap whales may be absent).

Take the protective film from the inside of the screen. Don't touch the matrix with your fingers, the greasy traces will remain forever!

Step 2: Connecting the plumes

Carefully connect:

1. Display plume (wide, 24-pin).
2. Touchscreen plume (narrow, 10-pin).
3. Lighting plume (thin, 2-pin, separately).

Make sure the connectors sit before you click. If the plume doesn't come in, don't push! You may have the connector mixed up.

Step 3: Screen fixation

Stick double-sided tape around the perimeter of the frame (without interrupting the line!) Then:

1. Line up the new screen over the connector USB-C.
2. Carefully press it, starting at the bottom.
3. Roll with a roller or fingers around the edges for better gluing.

Step 4: Assembly of the phone

Repeat the steps of disassembly in reverse order:

1. Put the battery on.
2. Set a metal plate and twist the screws.
3. Stick the back cover (use a new glue or double-sided scotch).
4. Heat the hair dryer cover for better fixation (temperature 60)°C, 2-3 minutes).

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Don't turn the phone on right away! Let the glue grab for 10-15 minutes or the screen may move away.

Checking and calibration

After replacing the screen with the Redmi Note 9 Pro, you must:

1. Check the backlight: Turn on your phone and see if there are any dark spots or uneven glow.
2. To test the touchscreen: open Settings → Display. → Touch test and check the response in all areas.
3. Calibrate sensors: Approximation sensor: ##6484## → Proximity Sensor: ##0588## → Light Sensor.

If the screen does not respond to touch or the image is distorted:

• 🔌 Check the density of the plumes (sometimes they depart during assembly).
• 🔄 Restart your phone – sometimes the system won’t recognize the new display the first time.
• 🛠️ If the problem remains, it may be a defective screen (especially cheap copies).

⚠️ Note: After changing the screen, the automatic brightness may not work properly due to the difference in the light sensors of the original and the copy. In this case, turn off the function in the settings or manually set the brightness.

Frequent Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when changing screens, and here are the most common problems and solutions.

If after replacing the screen Redmi Note 9 Pro began to drain the battery quickly, the reason may be:

• 🔋 Damaged backlight plume (consumes excess energy).
• 📱 Low-quality copy of the high-power screen.
• 🔌 Poor battery contact (check the connector).

FAQ: Answers to Frequent Questions