Independent screen replacement on Xiaomi: from disassembly to testing

A cracked or broken screen on a Xiaomi smartphone is a problem that one in five owners face after 2-3 years of use. According to service centers, 68% of display damage is due to falls, and the remaining 32% is divided between factory defects, moisture and unsuccessful repair attempts. Replacing a screen in official service costs 30-70% of the cost of a new phone, so many users decide to repair themselves.

But before you start screwdrivers, it’s important to assess the complexity of the task. Modern Xiaomi models (such as the Redmi Note 12 Pro+ or POCO F5) are equipped with AMOLED-matrixes with an integrated touch layer, where replacing the display requires accuracy and special tools. At the same time, budget devices like the Redmi 10A are easier to repair due to modular design. This article will help you understand whether you can replace the screen at home, what pitfalls await beginners and how to avoid errors.

We'll take a look at this in detail.

  • 🔧 What tools will you need to replace (and where to buy them cheaper)
  • 📱 Step-by-step disassembly of 5 popular Xiaomi models (with photo)
  • ⚡ Common errors that cause the new screen to fail
  • 💰 Cost of spare parts and where to order (AliExpress vs local stores)
📊 What kind of smartphone you Xiaomi?
Redmi Note 10/11/12
POCO X3/X4/X5
Mi 11/12/13
Redmi 9/10 series
Other

1. Diagnostics of the problem: is the screen really to blame?

Before you order a new display, make sure it's the one that's the problem. 30% of the "broken screen" cases are actually caused by damage to the plume, motherboard or battery.

✅ Visual signs:

  • 🔍 Cracks or chips on the glass are an obvious signal, but sometimes damage to the matrix is hidden under a protective film.
  • 🖥️ Image artifacts: stripes, flickering, "broken pixels" - a sign of a problem with a matrix or plume.
  • 👆 The sensor does not work, but the image is there - a malfunction of the touch screen is possible (on the screen). AMOLED-It is often integrated into the matrix).

✅ Tests without disassembly:

  1. Connect your phone to a PC/laptop or TV via USB-C/HDMI (if supported). If the outside screen is normal, the display or plume is a problem.
  2. If the vibration/sound is working, but the screen is black, it's likely that the matrix or backlight is damaged.
  3. Light the flashlight on the screen at an angle. If the image is barely noticeable, the backlight is faulty (requires a replacement of the screen or a separate LED module).

⚠️

Attention! If the phone doesn't turn on at all (no vibration, no sound, no charging indication), the problem may be the battery, the power board or the firmware.

What if the screen is working but there are yellow spots?
Yellow spots on Xiaomi screens (especially on AMOLED) are often due to delamination, a layer of glue between the glass and the matrix, a defect that is not fixed software, the only solution is to replace the display module, which is referred to as "physical damage" in service centers, even if the phone did not fall.

2.Selection of a new screen: original vs copy

The screen price for Xiaomi varies from 1,500 to 15,000 rubles depending on the model and type of matrix. The main question is whether to choose the original module, OEM-analogue or Chinese copy?

Screen typePrice (to/to)PlusesConsWhere to buy
Original (Original)5 000 — 15 000 ₽100% compatibility Original colors and brightness 6-12 months warrantyHigh price, long wait (if ordered from Xiaomi warehouse)Official services, Mi Store, trusted suppliers (e.g. GSMMart)
OEM (Original Equipment Manufacturer)3 000 — 8 000 ₽Quality close to the original Often come with adhesive layer Quick deliveryThere may be minor differences in colors, there is no guarantee on some models.AliExpress (98%+), eBay, local repair shops
Copy (Copy/Aftermarket)1 500 — 4 000 ₽Low price, quick receiptPoor color reproduction Low brightness Frequent sensor problems Service life 6-12 monthsAliExpress, local markets, low-cost online stores

🔹 How to distinguish the original from the fake?

  • 🏷️ The original screen has a hologram or sticker with a serial number (checked through the service Xiaomi).
  • 📦 The package includes a protective film and instructions in Chinese/English.
  • 🔍 The backlight should be uniform without spots (check on a white background).

💡 Buying tip: On AliExpress, the original screens for Xiaomi are sold only in stores with a gold crown (Gold Supplier) and a rating above 98.

💡

Before buying a screen, check its article on the Kimovil website – there are spare parts compatibility bases for all Xiaomi models.

3. Required tools for replacement

To replace the screen on Xiaomi will need 15-20 tools, but most of them can be bought in the set for 500-1000 rubles.

  • 🔧 Set of screwdrivers (cross-cross-haul) PH00, PH0, 1.0mm, 1.5mm flat, five-beam Security Torx T5 for some).
  • 🧲 Suction (diameter) 5-7 (cm) for screening.
  • 📏 Plastic blades/transmitters (thickness) 0.1-0.3 mm) to separate the shell.
  • 🔥 Hair dryer or thermo-air station (power) 300-500W) glue-softener.
  • 🧴 Isopropyl alcohol (90%+) glue-cleaner.
  • 📦 New adhesive layer (or bilateral scotch) 3M 9448A screen-wise).
  • 🔋 Tweezers (straight and curved) for working with plumes.
  • 📱 Screen Tester (you can use the free Screen Test app from Google Play).

⚠️

Attention! Do not use metal blades to separate the screen - they scratch the body and can damage the plumes. Also avoid household hair dryers (for example, for hair): they do not give the desired temperature (optimally 80-90 ° C) and can overheat the battery.

🛒 Where to buy cheaper tools?

  • AliExpress – sets from 300 rubles (delivery 2-3 weeks).
  • Ozone / Yandex Market - from 800 rubles (delivery 1-3 days).
  • Local radio parts stores - from 1,200 rubles, but you can touch before buying.

Make a backup of data (the screen may stop working permanently)|Charge the phone to 30-50% (full charge is dangerous when heated)|Prepare the workplace (clean table, good lighting)|Remove the cover and protective glass (if any)|Check the new screen for defects-->

4. Step-by-step disassembly of the smartphone (on the example of Redmi Note 11)

Xiaomi’s disassembly requires care – one error can damage the plume or motherboard. Below is a manual for the Redmi Note 11, but it is suitable for other models with a similar design (for example, POCO X4 Pro, Redmi 10).

📌 Step 1: Turn off and prepare

  1. Turn off the phone and remove it. SIM-card and memory card (if any).
  2. Heat the screen edge with a hair dryer for 2-3 minutes (80-90°C). Keep the hair dryer at a distance of 5-7 cm so as not to overheat the battery.
  3. Stick the suction cup to the bottom of the screen (where the charging connector is).

📌 Step 2: Screen separation

  1. Carefully pull the sucker up - a gap of 1-2 mm should appear.
  2. Insert a plastic blade into the gap and slowly lead it around the perimeter, separating the screen from the body.
  3. ⚠️ Don’t push hard – battery plumes and display pass under the screen!

📌 Step 3: Turn off the plumes

  1. Remove the metal screen shield (holds on 4-6 screws).
  2. Unplug the battery plume (black connector) - this will turn off the power.
  3. Carefully unplug the display plume (usually a white or orange connector) and use a plastic shoulder blade to keep the contacts from bending.

📌 Step 4: Install a new screen

  1. Move the speaker, touch button (if any) and camera (they usually come with the original modules) to the new screen.
  2. Apply a new adhesive layer or bilateral tape around the perimeter of the case.
  3. Connect the plumes in reverse order and gently press the screen.

🔧 Video Instructions for Visual Understanding:

YouTube code: watch?v=dQw4w9WgXcQ (replace with real ID video for your model)

💡

The most common mistake in disassembling is damage to the battery plume, so if the phone doesn't turn on after assembly, first check if the black battery connector has gone away.

5. Common Mistakes and How to Avoid Them

Even the skilled craftsmen sometimes make mistakes when changing the screen. TOP-5 The problems faced by Xiaomi users and how to prevent them:

🚨 1.The screen does not turn on after replacement

  • 🔌 Reason: Unconnected or damaged display plume.
  • 🛠️ Solution: Reassemble the phone and check the density of the connectors. If the plume is torn, it will need to be replaced (it is worth it). 300-800 ₽).

🚨 2. the sensor is not working (or is partially working)

  • 🔧 Reason: Bad touchscreen contact or incompatible screen (especially on cheap copies).
  • 📱 Solution: Reconnect the sensor plume. Update the firmware (sometimes you need to calibrate through Settings). → Additionally. → If the problem persists, the screen is defective (return to the seller).

🚨 3. "waves" or screen flickering appeared

  • 💡 Cause: Poorly glued display module or damage to the matrix when heated.
  • 🔥 Solution: Regulate the screen to make sure there are no air bubbles, check if you overheat the matrix with a hair dryer (maximum 90).°C!).

🚨 4.The phone can't see. SIM-map or no net

  • 📶 Cause: Antenna plume or contacts are damaged SIM-scatter-tray.
  • 🛠️ Solution: Check if it is tightly inserted SIM-Check the antenna contacts on the motherboard (they may oxidize).

🚨 5.The battery goes down quickly after changing the screen

  • 🔋 Cause: Battery damage during heating or improper connection of the plume.
  • ⚡ Solution: Check the Settings → Battery for abnormal flow rate, if the phone turns off when 20-30% battery damaged (replacement required).
  • 📶 Communication test: Check signal strength (no sharp drawdowns) Make sure Wi-Fi, Bluetooth and Bluetooth are working GPS.