Replacing the display on Xiaomi Redmi Note 12 Pro 4G: step-by-step guide with prices and nuances

Xiaomi Redmi Note 12 Pro 4G is one of the most popular smartphones of 2023, but it AMOLED display with permission 1080×2400 and frequency 120 Hz vulnerable to falls. Cracks, dead pixels or a non-functional touchscreen are typical problems that owners encounter. In this article we will look at how replace the screen yourself on Redmi Note 12 Pro 4G, where to buy original spare parts, how much it will cost in service and what to look for so as not to run into a fake.

Is it worth repairing the display yourself? If you have experience working with electronics and special tools (suction cup, pick, hair dryer), then yes. But for beginners, the risks are high: cables, batteries, or even the motherboard can be damaged. We will describe each stage in detail, including hidden pitfalls of the model - for example, the need to reflash the display after replacement for the Always-On Display to work correctly.

How much does it cost to replace the display on Redmi Note 12 Pro 4G in 2026

The repair price depends on the type of screen, region and service center status. Original display from Xiaomi with article number MB-DISP-12PRO4G will cost more than analogues, but guarantees 100% compatibility. Below is a table of current prices (as of June 2026):

Display type	Spare part price (₽)	Cost of work (₽)	Total price (₽)	Where to buy/replace
Original (OEM)	12 000 — 15 000	3 000 — 5 000	15 000 — 20 000	Authorized services Xiaomi, “Svyaznoy”, “M.Video”
Original-like (A+)	7 000 — 9 000	2 500 — 4 000	9 500 — 13 000	Unofficial services, AliExpress (with risk of defects)
Copy (low-cost)	4 000 — 6 000	2 000 — 3 500	6 000 — 9 500	Markets, small workshops (quality not guaranteed)
With touchscreen assembly	14 000 — 18 000	4 000 — 6 000	18 000 — 24 000	Official services (if the sensor is damaged)

⚠️ Attention: Cheap copies often have problems with color rendering, brightness and touchscreen sensitivity. For example, on the screens behind 5 000 ₽ support may not be available HDR10+ or work only 60 Hz instead of 120 Hz. Before purchasing, check seller reviews and request a video test of the display.

If the smartphone is under warranty, repairs from an unofficial service will void it. Official replacement in Xiaomi will cost 18 000 — 22 000 ₽, but gives a 6 month guarantee. An alternative is damage insurance (if purchased upon purchase).

How to distinguish an original display from a fake: 5 key signs

Spare parts market for Redmi Note 12 Pro 4G flooded with fakes. Even experienced craftsmen sometimes make mistakes. Here's what to check before purchase:

• 🔍 Article and marking: The original has an engraving MB-DISP-12PRO4G or Tianma FT8721 (panel manufacturer). Copies often have markings missing or worn off.
• 🎨 Color rendition: Hold the screen close to the light source. The original has a uniform backlight without yellowness. Cheap copies give off a greenish or blue tint.
• 👆 Touchscreen sensitivity: Perform a multi-touch test (simultaneous touching with 5+ fingers). Copies often have touch sticks.
• 🔋 Energy consumption: Original AMOLED consumes ~3% per hour in reading mode. Counterfeits can “eat” up to 8-10%.
• 📱 Always-On Compatible: Copies often do not support this feature or display it with artifacts.

💡 Lifehack: Ask the seller to make a video of the display test through the application Screen Test (available in Google Play). The original must pass all tests for dead pixels, gradients and color transitions without any complaints.

⚠️ Attention: AliExpress and other sites often sell “original” displays marked “For Xiaomi”. This does not guarantee compatibility! Look for sellers with ratings above 98% and reviews in Russian.

Step-by-step instructions: how to replace the display yourself

If you decide to repair it yourself, prepare your tools and follow the algorithm. Opening hours: 1.5–2 hours for beginners, 40–60 minutes for experienced ones.

Screwdriver set (Phillips #00, Y00, 0.8mm hex)|Plastic picks (2-3 pieces)|Screen suction cup (∅ 5-7 cm)|Hair dryer or hot air station (T ≥ 80°C)|Fine-tipped tweezers|Double-sided tape (3M or equivalent)|Isopropyl alcohol (90%+)|New display with adhesive frame-->

Step 1. Turn off and prepare your smartphone

Disable Redmi Note 12 Pro 4G, remove the SIM card and memory card. Warm up the edges of the screen with a hairdryer (do not direct the air flow towards the battery!). The temperature should be 80–90°C - this will soften the glue. Keep the hair dryer at a distance of 5-7 cm to avoid damaging the internal components.

Step 2: Removing the old display

Using a suction cup, lift the screen from the bottom edge (there are fewer cables there). Insert the plastic pick into the gap and carefully move it along the frame, separating the display. Do not use metal tools! Risk of damaging the battery or antenna cable.

What to do if the screen does not budge?

If the display is stuck and does not come off, increase the temperature of the hairdryer to 100°C (maximum!) and repeat the procedure. Do not use force as this may tear off the cables. As a last resort, use guitar thread (0.2–0.3 mm), thread it under the screen and “saw” the glue.

Step 3. Disabling loops

After removing the display you will see 3 cables:

1. Display cable (top, wide)
2. Touchscreen cable (medium, thin)
3. Light sensor cable (lower, small)

Unscrew the screws securing the connectors and carefully remove them with tweezers. Don't pull the wires! It is better to pry the connector from the side.

Step 4: Install a new display

Transfer all components from the old one to the new screen: speaker, notification LED, proximity sensor. Check that the adhesive frame is intact. Connect the cables in reverse order and secure with screws. Before final assembly, test the display by connecting the battery (without gluing the screen!).

Step 5: Build and Test

Apply new double-sided tape to the frame of the case, gently press the display and heat it with a hairdryer (60°C) for better adhesion. Turn on your phone and check:

• 🎯 Touchscreen performance (multi-touch, gestures)
• 🔦 Brightness and color rendition (compare with the old screen)
• 📶 Network and Wi-Fi signal (damage to antenna cables is a common mistake)

Common mistakes when replacing a display and how to avoid them

Even experienced craftsmen sometimes make mistakes that lead to additional expenses. Here are the most common:

• ⚡ Damage to the battery cable: Occurs when the screen is removed carelessly. Consequences: The phone does not turn on or discharges quickly. Solution: Use plastic picks and do not go deeper than 2mm.
• 🔌 Incomplete disconnection of loops: If you tear off the cable “with meat”, you will need to replace the entire module (price from 5 000 ₽). Solution: Take a photo of the location of the connectors first.
• 🔥 Overheating when soldering: When replacing charging or speaker connectors, many overheat the board, which leads to component delamination. Solution: Use a soldering station with a temperature no higher than 350°C.
• 📉 Display incompatibility: Copies may not support 120 Hz or HDR. Solution: Buy only from trusted suppliers with the possibility of returns.

⚠️ Attention: If after replacement the display blinks or vertical stripes appear, the cable or the screen itself is most likely damaged. Don't try to "get in" - this will make the problem worse. Contact the service for diagnostics.

Where to buy spare parts for Redmi Note 12 Pro 4G: trusted sellers

Where you buy your display is critical. Below is a list of proven suppliers with pros and cons:

Supplier	Pros	Cons	Average price (₽)
Official service Xiaomi	6 month warranty, original spare parts	Long wait (7–14 days), high price	15 000 — 20 000
AliExpress (stores Xiaomi Original Store, DIGITAL STORE)	Prices are 30–40% lower, fast delivery (7–20 days)	Risk of counterfeit, difficulty with return	7 000 — 12 000
“Chip and Dip”, “Amperka” (Russia)	Fast delivery (2–5 days), verified suppliers	Limited range, prices higher than AliExpress	9 000 — 14 000
Local services (Avito, Yula)	You can bargain, sometimes you come across used originals	High risk of counterfeit, no guarantee	5 000 — 10 000

🔍 Advice: Before buying on AliExpress, check if the seller has a certificate ISO 9001 or marked “Top Brand”. Also pay attention to the number of orders - from reliable sellers it exceeds 1,000+.

If you buy a used display (for example, after replacing it in a service), be sure to check it for dead pixels using the application Dead Pixel Test. Even small defects can grow over time.

Alternatives to replacement: when repair is not practical

Sometimes replacing a display is more expensive than buying a new smartphone. Consider alternatives if:

• 💸 The cost of repairs exceeds 50% from the price of new Redmi Note 12 Pro 4G (now it stands ~25 000 ₽).
• 🔧 Not only the matrix is damaged, but also the motherboard (diagnostics in the service - from 1 500 ₽).
• 📱 The phone is over 2 years old and you are planning to upgrade soon.

In such cases it is more profitable:

1. Sell smartphone for parts (on Avito or redemption services). Price - 3 000 — 7 000 ₽.
2. Exchange using the trade-in program (in Svyaznoy or M.Video they give a discount of up to 10 000 ₽ to a new phone).
3. Use as a backup device (for example, for a GPS navigator in a car).

If cracks on the screen do not interfere with work, you can temporarily “patch” them with tape 3M Scotch Tape or special film Tempered Glass with adhesive base. This will not solve the problem, but will protect against splinters and dust.

FAQ: Frequently asked questions about replacing the Redmi Note 12 Pro 4G display

Is it possible to replace only the glass and not the entire display?

Technically yes, but this extremely risky. B Redmi Note 12 Pro 4G The glass is glued to the AMOLED matrix, and when separated there is a high risk of damaging it. The cost of such work is often comparable to replacing the entire module, and the result is not guaranteed. It is better to change the screen assembly.

Why doesn't the fingerprint work after replacing the display?

Fingerprint scanner in Redmi Note 12 Pro 4G built into the screen. If you installed a copy of the display, the sensor may not work due to the lack of the original chip. The solution is firmware via Fastboot or replacement with an OEM screen.

How long does a replacement service take?

In the official service Xiaomi — 3–5 working days (including diagnostics). In informal workshops - 1–2 hours, if the spare part is available. Urgent repairs (in 1 day) are usually more expensive 20–30%.

Is it possible to replace the display with a higher resolution version?

No. The matrix is ​​rigidly tied to the motherboard. Installing a display with a different resolution (for example, 1440p) will lead to artifacts or a complete absence of the image. The maximum is a replacement with an OEM screen with the same specification.

What should I do if after replacement the screen starts to heat up?

The reasons may be different:

1. Poor thermal conductivity of the glue (the screen needs to be re-glued).
2. Damage to the battery cable (diagnostics in the service).
3. Non-original display with high power consumption.

Try resetting to factory settings (Settings → About phone → Reset). If it doesn't help, contact service.