Replacement of the display on Xiaomi Redmi Note 8: a detailed guide with photos and tips

A cracked or broken screen on the Xiaomi Redmi Note 8 is one of the most common problems after falls or mechanical damage. Many users immediately contact the service center, but with the tools and patience, you can replace the display yourself, saving up to 70% of the cost of repair. However, the process requires accuracy: the Redmi Note 8 has a fragile touchscreen plume that is easily damaged if undisturbed, and improper installation can lead to yellow spots or idle sensor zones.

In this article, you will find a step-by-step photo instruction, a list of tools you need, tips for choosing an original or analog display, and a breakdown of typical errors that beginners make. We will focus on the key points: how to safely disconnect the battery, do not damage the flexible plumes and properly fix the new module. If you have never disassembled smartphones, do not worry: the Redmi Note 8 is a device with medium difficulty in repair, and if you follow the instructions, the risk of errors is minimal.

Starting in 2023, the original display modules for the Redmi Note 8 (code) M1908C3JG) have become a rarity in the market, and most offers are either restored screen builds or counterparts from third-party manufacturers (for example, for example, the most expensive ones, BOE This doesn't mean you can't use them, but it's important to check compatibility and build quality before buying them.

Preparation for replacement: tools and spare parts

Before you start repairing, make sure you have everything you need, and that the lack of tools or the inappropriate parts are the main reason for the unsuccessful replacements, and that's the full list of what you'll need:

• 🔧 Screwdriver kit: cross-haired PH00 (for the screws of the body), flat 1.5 mm (for slashing clips), five-pointed Y00 (plume).
• 📱 New display module: original (if you find it) or high-quality metal framed counterpart. Avoid cheap plastic builds, which often have touchscreen issues.
• 🔥 Dryer or thermo-air station (at least 300 W) for softening the glue.
• 🧲 Suction cups (2 pcs) and mediators (plastic or metal) for screen separation.
• 🔋 Tweezers (preferably with curved ends) and spoogers (plastic shoulder blade).
• 🛠️ Double-sided tape or glue B-7000 fixing.
• 🔌 Multimeter (optional) to check the integrity of the plumes.

The original modules (with the Xiaomi logo on the plume) are rare and expensive (from 5 000 USD). ₽), but guarantee 100% compatibility. Analogues (from 2,500) ₽) may have flaws:

• 🟡 Yellow screen (especially in cheap models).
• 👆 Poor touchscreen sensitivity around the edges.
• 🔋 Rapid wear of the adhesive layer (the screen may move away with time).

Where to buy? Proven sites:

• 🛒 AliExpress (stores with a rating above 98% and reviews about compatibility with Redmi Note 8).
• 🏬 Local service centers (sometimes sell used originals after replacement).
• 🌍 Sites like eBay or Amazon (to order from abroad).

⚠️ Warning: If you buy a display with already pasted tape, check its thickness. Too thick a layer (more than 0.2 mm) can lead to poor fit of the screen to the body and the "butterfly effect" (raised edges).

2.Shooting Xiaomi Redmi Note 8: Removing the back cover and battery

The first step is to turn off the power and remove the back panel, and the key is not to damage the plumes or break the battery's adhesive base.

Step 1 Turn off the phone and remove it. SIM-map.

• Press the power button and select Turn it off.
• Use a paper clip to extract the tray SIM-map (located on the left end of the card).

Step 2. Heat the back cover with a hair dryer.

• Set the temperature on the hair dryer 80-90°C and evenly warm the edges of the body for 2-3 minutes.
• Do not direct hot air to the camera or microphone – this can melt the safety nets.

Step 3. Put the lid on the mediator.

• Start at the bottom edge (near the connector). USB-C).
• Carefully drive the mediator around the perimeter, separating the clips. If the lid does not respond, warm up again.

Once you remove the lid, you'll see the insides of the device, and the first thing you need to do is turn off the battery, or you risk closing the charge as you disassemble it further.

Step 4: Battery disconnection:

1. Find the battery plume (black connector with a red marker).
2. Pull it up with a plastic spatula. Don't use metal tools!
3. Check the multimeter voltage on the contacts of the battery - should be 0 V.

⚠️ Warning: If the battery is swelling (as seen from the deformation of the body), do not attempt to pierce or bend it. Carefully remove it with tweezers, pre-wearing protective gloves. Bloated batteries can ignite!

Now you can start taking the screen down, but first make sure that all the screws on the motherboard are fixed, they're of different lengths, and you can't mix them up when you build them back.

3. Removal of the old display: work with plumes and glue

This is the most critical step, and damage to the touchscreen plume or display is the most common mistake you make when you replace it.

Step 1. Unscrew the screws that lock the metal frame.

• There are 8 screws in total: 4 in the corners and 4 in the middle of the sides.
• Use a magnetic screwdriver. PH00, so that the screws don't get lost.

Step 2. Unplug the plumes.

• 📱 Display plume (wide, white connector).
• 👆 Touchscreen plume (thin, black latched connector).
• 🔊 Dynamic plume (if it interferes, but usually you can not touch it).

Use a plastic spooger to extract the plumes, and jack the connectors from the side instead of the top so as not to damage the contacts.

Step 3. Warm up the screen to separate the glue.

• Hair dryer temperature: 70-80°C (not higher, otherwise damage the matrix!).
• Warm up for 30 seconds each edge, then try to separate the screen with suction cups.
• If the screen doesn't respond, don't pull it. You better warm it up again.

When the screen separates, gently place it on the table with the display down so that the new matrix doesn't scratch, and now you can clean the case of the glue residue.

• 🧴 Isopropyl alcohol (90%+).
• 🧼 Cotton swabs or microfibers.

Don't use acetone or solvents! They can damage plastic body parts.

Removed back cover and battery disconnected|

All plumes are disconnected, contacts are clean.|

The body is cleaned of old glue and dust|

New display tested for no defects (scratches, broken pixels)|

There is bilateral scotch or glue on hand B-7000

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4.Installation of a new display: glue, connection and testing

Now we're going to put a new matrix in, and it's critical to place the plumes right and stick the screen evenly, or you might have sensor or backlight problems.

Step 1. Apply the glue.

• If you use double-sided tape, cut it into strips 3-4 mm wide and stick around the perimeter of the case.
• If you use glue B-7000, apply it in a thin layer on the edges, retreating 1-2 mm from the plumes.

Step 2, connect the plumes.

• First, connect the touchscreen plume. It's the most fragile.
• Then you have the display plume (white connector) and make sure the latch closes with a click.
• Check if the plumes are bent and if dust has fallen under them.

Step 3, lay the screen.

• Carefully place the new display on the body, combining the holes for screws.
• Press the screen evenly, starting from the center and moving to the edges.
• Turn the metal frame screws (do not pull!).

Step 4: First on and testing.

• Connect the battery and turn on the phone.
• Check it out: 🎨 Screen colours (whether there is a yellow tint). 👆 The work of the touch screen (especially on the edges). 🔦 Lighting (are there any dark spots).

⚠️ Warning: If the screen flashes after turning on or artifacts (strips, dots) appear, this may mean poor contact of the plume. Turn off the phone, check the connectors and reconnect.

If everything is working normally, you can start to reverse assemble. If not, see the "Typical Problems" section below.

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Before final assembly, take a picture of the location of all plumes and screws, which will help to avoid errors in reverse assembly.

5.Reverse assembly: finishing steps

Now, the only thing that's left is to put the phone back together, and it's important to remember the little details and fix all the elements correctly.

Procedure:

1. Make sure all the plumes are connected and not clamped.
2. Twirl the screws of the metal frame (use the scheme from the table below).
3. Stick the back cover. To do this, apply a thin layer of glue. B-7000 Press the lid and heat it with a hair dryer. (60)°C) for better adhesion.

Put the tray in. SIM-Cards and turn on the phone for the final test.

The Redmi Note 8 screw scheme:

After assembly, check:

• 📶 The antennas (are there any problems with the signal network).
• 🔈 Speaker and microphone sound.
• 📷 Camera operation (sometimes focusing is lost during disassembly).

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If the phone doesn't turn on after assembly, the first thing you do is check the battery and power plume connection, and that's what's wrong with 90 percent of the time.

6.Typical problems after the replacement of the display and their solution

Even with a careful replacement, there can be problems, and let's look at the most common ones and how to fix them:

Problem 1: The screen does not respond to touch (the touchscreen does not work).

• Reason: The touchscreen plume is damaged or it is not tightly connected.
• Solution: Turn off your phone and check the plume connector, and if the plume is torn, you'll need to replace the display module.

Problem 2: The screen is yellow.

• Reason: Cheap analog display with poor color reproduction.
• Solution: Try calibrating colors in settings (Settings) → Display. → If it doesn't work, replace the display with a better one.

Problem 3: Stripes or artifacts on the screen.

• Cause: Damage to the display plume or matrix.
• Solution: Check the integrity of the plume (no cracks) If the stripes appear when you press the screen, the matrix problem (replacement needed).

Problem 4: The screen is spontaneously pressing (ghost touch).

• Cause: Bad touchscreen plume contact or screen damage.
• Solution: Reconnect the touchscreen plume. If there's a problem, check the screen for microcracks.

Problem 5: The backlight is not working (the screen is dark, but the image is still there).

• Reason: A faulty backlight plume or driver problem on the board.
• Solution: Check the connection of the display plume. If it doesn't work, it may be a motherboard that's damaged (diagnosis needed).

If none of these solutions worked, maybe the problem is that the motherboard is damaged when you disassemble it, and you'd better go to the service center.

7. Tips for extending the life of a new display

To keep the new screen as long as possible, follow these guidelines:

• 🛡️ Use a protective glass and cover, and even a small blow can cause micro-cracks.
• 🚫 Avoid overheating. Do not leave your phone in direct sunlight or near heat sources.
• 🔋 Do not discharge the battery to zero. Deep discharge can cause voltage surges that are harmful to the display.
• 🧴 Clean the screen correctly. Use microfiber and special wipes, avoid alcohol-containing liquids.
• 💧 Keep out the moisture, even if the phone has protection. IP53, Getting water under the screen can cause corrosion of plumes.

It is also worth turning off autobrightness in settings (Settings). → Display. → Automatic brightness control: Constant changes in backlight reduce the life of the matrix.

If you drop your phone a lot, consider a high-impact display (like the Gorilla Glass 6 models), which is more expensive but pays off in terms of durability.

8. Cost of repair: self vs service center

The price of replacing the display on the Redmi Note 8 varies depending on the module chosen and the method of repair.

Self-sustaining replacement:

Repairs at the service center:

• Official Xiaomi service: 6,000–8,000 ₽ (Original parts, 6 months warranty).

Comparative table:

Self-repair is beneficial if:

• You already have the tools.
• You are willing to take risks (for example, the phone is not on warranty).
• You have found a quality display at a good price.

It is worth contacting the service if:

• Phone for warranty (self-repair cancels it).
• You've never taken out smartphones.
• Urgent replacement is needed (for example, the screen is completely broken and interferes with work).

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If you're in doubt, it's better to pay for repairs to the service than to damage the motherboard, and it's 3 to 5 times more expensive than a display.

FAQ: Frequent questions about replacing the display with the Redmi Note 8