How to carefully remove the back cover with Xiaomi Redmi: instructions with photos and warnings

Disassembling the Xiaomi Redmi smartphone is a challenge that owners face when replacing the battery, repairing the camera or cleaning from dust. However, removing the back cover requires caution: one wrong movement can lead to damage to the plumes, cracks in the glass or loss of leakage. In this article, we will discuss all the steps of the process, from tool preparation to final assembly, taking into account the features of different Redmi models (from Redmi Note 4 to Redmi 12).

It is important to understand that the design of the lid at Xiaomi has evolved: if in the old models it was attached to latches and double-sided tape, then in the new (for example, Redmi Note 11 Pro).+) We've added screws under the lid and tightened seals, and we'll tell you how to recognize the type of mount without the risk of breaking the device, and we'll give you a checklist to check the integrity of the components after disassembly.

The article is based on the experience of service centers and tests of enthusiasts, and also includes unique data on the most vulnerable places of Redmi buildings (for example, the area near the Redmi building). USB-If you've never taken a smartphone apart, start by watching video instructions and evaluating your skills.

Preparation: tools and modalities

Before you start removing the lid, make sure you have everything you need, and the absence of even one tool can lead to permanent damage – for example, using a knife instead of a mediator often causes scratches on the frame or cut plumes.

Here is the minimum set you will need:

• 🔧 Plastic mediator (or guitar mediator) - for tidy lid tweaking. Metal instruments are prohibited!
• 🔥 Dryer or thermo-air station (power 500-800 W) - for softening the glue. Heating temperature: 70-90°C.
• 🔩 Screwdriver cross (PH00) and five-beam (Pentalobe) - for screws under the lid (in Redmi models) 9/10/11).
• 🧲 Magnetic mat or container – so as not to lose screws and small details.
• 📸 Smartphone for shooting the process - fix the location of plumes and screws before disconnecting.

Also prepare the workplace:

• 🪑 Work at a table with good lighting (better to use a desk lamp).
• ⚡ Turn off your smartphone and remove it. SIM-map + The battery charge should be less than 25%, which will reduce the risk of fire in case of accidental circuit.
• 🧼 Rub the surface of the lid with alcohol - this will remove fat and improve the grip of the suction cup (if you use it).

⚠️ Note: If your Redmi has official status IP53 (Splash protection, when the lid is removed, the leakage will be broken, and the repair will require replacement of the adhesive layer and gaskets.

Determine the type of mounting of the cover

The design of the rear panel at Xiaomi Redmi depends on the year of release and series. Below is a table with mounting features for popular models:

To determine exactly the type of mounting your model, follow the following steps:

1. Look at the screw plugs near the charging socket, and if you have any, there are screws underneath (you need a Pentalobe screwdriver).
2. Try to gently apply the cover with the mediator at the seam (near the volume buttons), if it does not respond, then there is glue.
3. Check for a perimeter sealing gasket (black gum) if you have one, you'll need heating.

Step-by-step instructions for removing the cover

Below is a universal algorithm for most Redmi models, and start only after you have studied the mounting type section.

Step 1. Heat the lid.

• 🔥 Turn on the dryer at average power and direct the airflow to the edges of the cover (not the center!).
• ⏱ Keep the hair dryer 5-7 cm away, moving it constantly. Heating time: 2-3 minutes.
• 👆 Check the temperature with your hand – the cover should be warm, but not hot.

Step 2: Undermining the mediator

• 📍 Start at the corner near the on button – there is usually less glue here.
• 🔳 Insert the mediator into the slot and carefully lead along the frame, without going deeper than 2 mm.
• 🔊 With the right undercoat, you'll hear light clicks -- that's the latches coming off.

Check that all latches are disconnected (walk the mediator around the perimeter)|Make sure the fingerprint scanner plume is not stretched (in side scanner models)|Take a picture of the location of the screws under the lid (if any)|Turn off the battery before further disassembly-->

Step 3: Disconnect the plumes (if necessary)

In the models of Redmi Note 8 Pro, 9 Pro and newer under the cover can be:

• 📶 The antenna plume NFC (squirt).
• 🔍 Footprint scanner (in models with side button).
• 🔋 Battery connector (red or orange connector).

To disconnect the plume:

1. Use a plastic tweezer or a mediator.
2. Carefully slap the black connector latch (it leans up).
3. Don't pull the wire! - just the connector itself.

⚠️ Attention: At Redmi K40 and K50 The fingerprint scanner plume is glued to the lid, and if it's not taken carefully, it can come off, and it needs to be replaced. ~1500–2000 ₽).

Frequent Mistakes and How to Avoid Them

Even experienced users sometimes make mistakes when disassembling Xiaomi Redmi. TOP-5 Problems and ways to prevent them:

1.Cracks on the glass cover

The reason is that the heat is not uniform or the pressure is on the center of the lid. Redmi Note 11 Pro and later have thickened glass, but it is still brittle under point loads.

Solution: Heat only the edges and use a suction cup for even lift.

2.Display plume damage

The reason is that the lid is connected to the frame, and the frame is connected to the screen, so if you pull the lid too hard, you can move the screen and tear the plume.

Solution: After disconnecting the latch, hold the screen with your hand.

3.Adhesive residues on the frame

Reason: When reassembled, the old glue does not provide leakproofness.

Solution: Remove residues with isopropyl alcohol and apply a new double-sided scotch (e.g, 3M 9448A).

4. Loss of screws

The reason: the screws in Redmi are small and easily lost.

Solution: Use a magnetic mat and sort the screws into groups (e.g., “cover screws,” “motherboard screws”).

5. Forgot to turn off the battery.

Reason: when working with the board there is a risk of short circuit.

Solution: First, disconnect the battery connector (usually red or orange).

💡

If the lid does not respond after heating, do not increase the temperature - it is better to repeat the procedure after 5 minutes. Overheating can melt plastic latches inside the case.

Build: How to put everything back in place

Building a smartphone after removing the lid is as important as disassembling it.

1. Checking the plumes

• 🔍 Make sure all plumes (antennas, fingerprint scanner, speakers) are properly connected and not twisted.
• 🔌 Connectors must click when the latch is closed.

2. Applying new glue

If you completely removed the lid, the old glue lost its properties.

• 📏 Double-sided Scotch (e.g. Tesa 61395) – cut strips 3-5 mm wide.
• 🔥 Liquid glue. B-7000 — squirt.

3. Closing of the lid

1. Then, put the lid on the sleeves (if any).
2. Start at the top edge and gradually press the lid against the frame.
3. For models with tape, use a rubber roller to evenly press the edges.

4. Post-assembly check

After assembly:

• 🔋 Turn on your smartphone and check charging, sensor, camera.
• 📶 Make sure that NFC Wireless charging works (if supported).
• 🔊 Test speakers and microphones – sometimes plumes shift when assembled.

💡

If the smartphone doesn't turn on after assembly, the first thing to do is check the battery and the display plume connection, and 90 percent of the time, that's where the problem is.

Models with features: Redmi K-series and Redmi Note 11/12

Some Xiaomi models require a different approach. Let's take a closer look at them.

Redmi K40/K50: metal frame and hidden screws

In these models, the lid is attached to a metal frame that itself is held on screws under plugs.

1. Take two plugs off near USB-squirt them out (shoulder them out).
2. Unscrew the 4 Pentalobe screws.
3. Heat the edges of the cover and gently dent it first at the power button.
4. Disconnect the tail of the side fingerprint scanner (it's glued to the cover!).

Redmi Note 11 Pro+: sealing and fragile scanner

This model has:

• 🛡 Enhanced sealing (glue) + rubber-layer).
• 🔍 The fingerprint scanner under the screen - its plume goes through the lid.

Recommendations:

• Heat the lid to 85.°C (regular 70)°C may not be enough).
• Use two mediators – one for the corner, the other for the cover.
• After removing the cover, do not pull the scanner plume - it is fragile!

Redmi 12: thin cover and weak latches

This model has a thinner lid than previous generations and is easy to bend.

• When assembly, press the lid from the center to the edges to avoid distortions.

When is the best time to contact the service

It is not always necessary to do the dismantling yourself.

• 🔧 You don’t have experience disassembling smartphones, and the model is complex (e.g. Redmi). K50).

Average prices for disassembly in services (2026):

⚠️ Warning: If after disassembling the smartphone stopped turning on, do not try to "fix" it with reheating or shocks. this can lead to short circuit and complete loss of the device.

FAQ: Answers to Frequent Questions