How to carefully remove the back cover with Xiaomi Redmi 4X: instructions with photos and nuances

Disassembling the Xiaomi Redmi 4X is a challenge that owners face when replacing a battery, repairing plumes or cleaning dust. However, the wrong approach can lead to cracks in plastic, damage to latches or even failure of flexible cables. This model, released in 2017, has a specific design: the lid is attached to plastic clips, and under it are hidden battery tape and plumes that are easily damaged.

Unlike today’s glue-mounted smartphones, the Redmi 4X is relatively simple but requires care. If you’ve never done electronics repair, you should prepare the tools in advance and study the location of the internals. This article provides a step-by-step lid removal algorithm, tips for choosing a mediator, and answers to questions about warranty and potential risks.

⚠️ Critical: Even if you successfully removed the lid, don't touch the metal parts of the motherboard without an antistatic bracelet -- static electricity can disable the chips. This is especially true in dry, carpeted areas.

Preparation for disassembly: tools and safety

Before you start removing the lid, make sure you have everything you need. Xiaomi Redmi 4X does not require professional equipment, but using the wrong tools can leave marks on the body or break plastic latches.

Minimum set:

• 🔧 Plastic mediator (or guitar mediator 0.5-0.7 mm thick) metal blades leave scratches!
• 🔋 Thin screwdriver (cross, size) PH00) screw-off.
• 🧲 Magnetic mat or screw container – easy to lose.
• 📸 Smartphone for photographing the process (useful when reassembling).

In addition, the following may be used:

• 🧴 Isopropyl alcohol (90%+) Cleaning contacts if you are planning to replace the battery.
• 🔥 Hair dryer (to soften the adhesive on the battery if it is required to be removed).
• 🧤 Antistatic bracelet or gloves (to protect electronics from statics).

⚠️ Warning: If your Redmi is yours 4X And the warranty is that the disassembly will cancel it. Xiaomi service centers use special seals on the screws, and they will be damaged when you diagnose them.

Step-by-step: how to remove the back cover

The process of removing the lid takes 5-10 minutes, if you act carefully, the main thing is to take your time and follow the order of action.

Step 1. Turn off your smartphone and remove SIM-This will prevent the contacts from accidentally closing.

Step 2: Heat the edges of the body (optional) If the lid is too tight, you can warm it up slightly with a hair dryer (temperature no higher than 60°C) for 1-2 minutes, which will make the plastic more elastic.

Step 3: Put the mediator in the gap between the lid and the frame. Start at the lower left corner (near the charging connector), as there is less risk of damaging the plumes. Carefully drive the mediator along the body, snapping clips.

Step 4: Walk around the perimeter without putting too much effort. If the lid fails, check if there are any unlatched latches. The typical "stubborn" zones are the top (near the camera) and the right edge (near the volume buttons).

⚠️ Warning: If you hear a crunch, it's plastic clips that break, stop disassembling and check if you've caught a fingerprint plume (it goes from the power button to the motherboard).

Is the smartphone off the grid?

Whether extracted SIM-map?

Is the mediator and screwdriver ready?

Is the original type of screws photographed (if the cover was already removed earlier)?-->

When all the clips are snapped, gently lift the lid. It remains connected to the body with a flexible plume (if your model has a fingerprint scanner on the back).

What to do after removing the cover: further actions

Once the lid is lifted, you will see the internal structure of the Redmi 4X.

• 🔋 Battery (glued to the body, connected connector to the motherboard).
• 📱 Motherboard (closed by metal screen).
• 📷 Camera and plumes (main camera is located in the upper left corner).
• 🔌 Antenna contacts (thin metal strips at the edges).

If your goal is to replace the battery, first disconnect the connector from the board (use a plastic blade to avoid damaging the contacts). Then gently tuck the battery into a double-sided tape. To facilitate the process, you can use isopropyl alcohol or a special glue solvent.

If you want to get to the motherboard, first unscrew all the screws (usually 8-10 pieces, of different lengths). Remember the location of each one - when you build it, it is important to return them to their places!

⚠️ Attention: If you notice that after disassembly, the sensor stopped working, most likely, the plume of the display left!).

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If the screws don't unscrew, don't force them -- try dripping some WD-40 or alcohol, and they often get stuck because of oxidation.

Common Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when disassembling the Xiaomi Redmi 4X. Here are the most common problems and ways to prevent them:

1.Broken plastic clips

Reason: too much pressure from the mediator or trying to unplug the cover on one side.

Solution: heat the body with a hair dryer and drive the mediator parallel to the body, not at an angle.

2.A damaged fingerprint scanner plume

Reason: abrupt removal of the cover without disconnecting the plume.

Solution: Before completely removing the cover, gently disconnect the plume connector with tweezers.

3. Scratches on the frame

Reason: Use of metal tools.

Solution: Wrap the mediator with tape or use a plastic card.

4.The camera is not working after assembly

Reason: camera module is not tightly screwed or the connector is contaminated.

Solution: Check all screws and clean the contacts with alcohol.

5.The smartphone is not switched on

The reason: forgot to connect the battery or damaged the motherboard with static electricity.

Solution: Check all connectors and use an antistatic bracelet.

Building a phone: the reverse order of action

Putting the Redmi 4X back together is often harder than disassembling.The main rule is: act in reverse sequence and check each step.

Assembly order:

1. Make sure all plumes are connected (battery, camera, fingerprint scanner).
2. Twisting the motherboard screws (start with the longest ones).
3. Stick the battery to double-sided tape (if replaced).
4. Gently snap the lid, starting at the top (near the camera).
5. Check the operation of all buttons and sensors until final fixation.

⚠️ Warning: If the vibration is not working after assembly, check if the speaker or vibrator is clamped, often because of an improperly laid plume.

Before the final fixation of the cover, turn on the phone and check:

• 📶 Network operation (SIM-map recognized?).
• 📷 Camera (are there any artifacts in the photo).
• 🔋 Charging (connector not hanging?).
• 🔊 Speakers and microphone (clean sound, no wheezing).

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If something doesn't work after assembly, don't twist the screws to the end -- first find the cause of the malfunction, and often the problem is solved by reconnecting the plume.

When to contact the service center

Not all breakdowns can be repaired by yourself.

• 💥 The smartphone does not turn on even after checking all connectors.
• 🔥 The smell of burning appeared - this is a sign of a short circuit.
• 📉 The battery is swelling (see below the raised cover).
• 💦 Liquid on the motherboard (even if the phone is working).
• 🛠️ Requires soldering (for example, the charging connector fell off).

The cost of dismantling in the service center Xiaomi is usually 500-1500 rubles, depending on the complexity of the work. If the problem is in the motherboard, repair can cost 3000-8000 rubles (depending on the breakdown).

⚠️ Note: if you damaged the plume of the display or touch screen, its replacement will cost 2000-4000 rubles (depending on the originality of the spare part). 4X substitute.

FAQ: Frequent questions about the dismantling of Xiaomi Redmi 4X