Replacing the screen with Xiaomi Redmi 4A: a detailed guide with photos and videos

Broken screen Xiaomi Redmi 4A — one of the most common problems for owners of this budget smartphone. Even a slight drop can lead to cracks, broken pixels or complete failure of the sensor. the service center for the replacement of the display module will take from 1,500 to 3,000 rubles, but with the tools and patience you can save by performing the repair yourself.

This instruction is suitable for both the Redmi 4A model with a 5-inch screen (resolution 720×1280) and for its modifications (for example, the Redmi 4A Pro). We will figure out how to choose the right part, avoid errors during disassembly and do not damage the plumes. If you have never repaired smartphones, do not worry: Redmi 4A refers to devices with a simple design, and if you are careful, the risk of breaking something is minimal.

1. What tools will be needed to replace the screen

Before you start disassembling, prepare everything you need, and without the right tools, you risk scratching the body, tearing the plumes, or sloppyly uncoupling the duct tape, and here's the minimum set you'll need:

• 🔧 Plastic mediators (2-3 pieces) - for careful tweaking of the cover and screen. Metal blades can leave scratches!
• 🔨 The screwdriver (PH00 or PH0) — Important: the head must fit tightly into the slats so that the threads don't break.
• 🧲 Magnetic mat or container - to avoid losing small screws. 4A There are only 8 of them, but they are tiny.
• 🔥 A hair dryer or a thermo-air station, to soften the glue around the perimeter of the screen, even a household hair dryer at maximum power will do.
• 🧴 Isopropyl alcohol (90%+) Or solvent to remove glue residues. Do not use acetone: it can damage plastic!
• 📱 New display module - more about this in the next section.

If you plan to do repairs regularly, you should buy a screen suction cup (helps to gently lift the display) and an antistatic bracelet (protects the board from static electricity).

⚠️ Warning: Don't use knives or sharp objects to lick the lid! at Redmi 4A The back panel is mounted on the latches, and it is easy to break.

How to Choose the Original Screen for Redmi 4A

The quality of the display module not only affects the appearance, but also the performance of the sensor, color reproduction and lifespan. There are three types of screens on the market for the Redmi 4A:

Where to buy? Best options:

• 🛒 AliExpress is cheap, but it's a long wait (2-4 weeks) and look for sellers with a rating above 98% and reviews in the photo.
• 🏬 Local service centers – often sell original parts with a warranty, but the price is higher.
• 🌐 Specialized sites (e.g. FixPrice, MobiParts) – average prices, fast delivery.

Before buying, make sure that the package includes a plume display (sometimes sell only glass without a touchscreen). Also check whether the set includes duct tape to fix the new screen – if not, you will have to buy separately (costs about 100). ₽).

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Before you buy, ask the seller to send a photo of the screen with the test mode (colored stripes) to avoid marriage.

3. Step-by-step disassembly of Xiaomi Redmi 4A

Now, to the most critical stage, disassembly, note: if your Redmi 4A is not turning on because of a broken screen, but is responding to charging (the indicator vibrates or lights up), the most likely problem is only in the display. If the device is completely dead, check the battery or board first.

Disassembly instructions:

1. Turn off your smartphone and remove it. SIM-cards from the tray (use a paper clip or a special key).
2. Heat the back cover with a hairdryer for 2-3 minutes, keeping it at a distance of 5-7 cm.
3. Carefully apply the lid to the plastic mediator, starting at the bottom edge (near the charging connector). The latches may resist - don't put too much effort into it!
4. Disconnect the battery plume from the motherboard (it is attached to the connector). To do this, put the black lock up.

And then you'll see the insides of the smartphone. In Redmi 4A, the screen is attached to the body in a double-sided tape, and the display plume goes through the middle of the device to disconnect it.

Turn off the battery |Photograph the location of the plumes |Put a picture of the board to check if there is any residue of flux or moisture |Use a plastic tool, not a metal-->

• 🔧 Unscrew 4 screws, fixing the metal plate above the plume (they can be of different lengths - remember where it stood!).
• 🖥️ Carefully lift the plate and unplug the display plume from the socket on the board. It's fixed by the latch -- you just pull it up.
• 🔥 Heat the screen around the perimeter with a hairdryer (especially in the corners) to soften the glue.
• 📱 So you can put a plastic mediator on the display and slowly separate it from the body. Don't pull it too hard, there may be some scotch inside.

⚠️ Warning: If the screen is cracked but still held on the plume, don't pull it off abruptly! First, unplug the plume from the board, or you'll break the contacts.

4. Installation of a new screen and assembly of a smartphone

When the old display is removed, clean the case of glue residues with isopropyl alcohol and a napkin without pile. Don't use wet rags - moisture can get on the board. Now we start installing a new screen:

1. Check the new module for defects (scratches, broken pixels) and plug it into the board and turn on the smartphone to make sure the sensor is working.
2. Apply a new double-sided tape around the perimeter of the case (usually it comes with a screen). If there is no tape, buy separately (width 0.5-0.8 mm).
3. Carefully apply the screen, combining the holes for the speaker and the front camera. Push around the edges to the glue grabs.
4. Connect the plume to the plug on the board and lock it with a latch. Make sure the contacts are not bent.
5. Set the metal plate back and twist the screws (do not tug!).
6. Connect the battery and check the screen before final assembly.

If the screen does not respond to touch or displays artifacts after assembly, check:

• 🔌 Is the sleeve properly connected (sometimes it flies off when assembled).
• 🔍 Are there any contaminants on the contacts (wipe with alcohol).
• 🔄 Restart your smartphone – sometimes the sensor starts working after a reboot.

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If you have vertical stripes or flickering after changing the screen, it's probably the plume that's the problem. Try replacing it separately (costs about 300-500). ₽).

5. Typical Screen Replacement Errors and How to Avoid Them

Even experienced craftsmen sometimes make mistakes that lead to a re-repair or failure of the smartphone, and here are the most common mistakes and ways to prevent them:

• 🔥 Overheating board with a hairdryer - keep the hot air flow only on the screen, not on the motherboard.Temperature above 80°C can damage the chips.
• 💧 Moisture intake – work in a dry room, avoid condensation when heated.
• 🔧 Loss or tangle of screws - in Redmi 4A If you twist a long screw into an unintended place, you can break the board.
• 📱 Damage to the plume - never pull it, only carefully pull the latch.
• 🔋 Battery discharge – if the smartphone runs out during repair, the board may reset the settings.

Another common problem is the new sensor's poor sensitivity, which is typical of cheap screen copies, if, after being replaced, the sensor only responds to strong presses.

• Check if the plume is connected correctly.
• Update the firmware (sometimes it helps to calibrate the sensor through the engineering menu).
• If nothing helps, replace the screen with a better one (original or a copy of the premium class).

6. Testing after screen replacement

When the smartphone is assembled, you need to check all the features of the new display.

Sensor operation (scrolling, scaling, pressing)|Color reproduction (whether there is yellowness or distortions)|Brightness and auto-regulation|Front camera operation and dynamics|Absence of artifacts (strips, flickers)|Charging and synchronization with PC-->

For a deep check, use special applications:

• 📱 Screen Test (checking broken pixels and colors).
• 🔍 Touch Screen Test (Multi-touch and Sensitivity Test).
• 🔋 AIDA64 (check of sensors and general condition of the device).

If you find defects (for example, part of the screen is not working or the sensor is floating), disassemble the smartphone again and check:

1. The integrity of the plume (whether there are cracks or breaks).
2. The density of the screen adjoining the body (possibly the glue did not catch).
3. Sensor settings in the engineering menu (enter ##36446337## and select Touch Panel Test).

⚠️ Warning: If the smartphone starts to run out quickly after replacing the screen, check if you have damaged the battery plume. Sometimes it gets hurt during assembly and causes increased battery consumption.

7.The cost of replacing the screen in the service vs self-repair

The price of a screen replacement in a service center depends on the type of display and region, and on average in Russia in 2026 the cost looks like this:

Is it worth repairing yourself? Yes, if:

• 💰 You already have tools (dryer, mediators, screwdriver).
• ⏳ You are not limited in time (the first replacement may take 3-4 hours).
• 🛠️ Are you confident in your skills or ready to learn.

Please contact the service if:

• 🔧 You have no experience with electronics.
• 📱 Smartphone warranty (self-repair it cancels).
• ⚡ The problem is not only in the screen (for example, the touchscreen does not work due to damage to the board).

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Savings when replacing the screen yourself are up to 50%, but the risk of damaging the smartphone is higher.

FAQ: Frequent questions about Redmi screen replacement 4A