The back cover of Xiaomi Redmi is not just a decorative element, but a complex design that protects the internal components from dust, moisture and mechanical damage, but sooner or later the owner may need to remove it: for battery replacement, dust cleaning, plume repair or even a banal installation SIM-cards in a model with an uncomfortable tray, POCO, Redmi A) ways to open the lid are radically different - somewhere enough plastic blade, and somewhere you will have to fight with factory glue and the risk of damaging the glass.
This article will help you understand how to safely open the lid on your Xiaomi Redmi model, avoiding the typical mistakes: cracked glass, torn plumes or damaged adhesive layer. 9A, Redmi 10A), and flagship devices with adhesive attachment (Redmi Note 12 Pro)+, POCO F5), And we'll also give you tips on how to choose tools and how to prepare your workplace, and if you've never taken a smartphone apart before, don't worry: with the right approach, even a beginner can do it in 15 to 20 minutes.
Why you can't open the lid on your knee
Many users underestimate the risks of dismantling Xiaomi Redmi, believing that "there are only two latches." In practice, the consequences of a careless opening can cost a round sum:
- 🔧 Damage to battery plume - in 70% of cases, when the cover is rough, a thin connector breaks, which goes from the battery to the motherboard. Its replacement in the service costs from 1,500 rubles.
- 💔 Cracks on glass – if you apply the lid with a metal tool in the area of the camera or logo, the glass can burst due to uneven pressure.
- 🧲 Loss of magnetic mounting in wireless charging models (Redmi Note 11 Pro)+) magnets are located under the cover, which easily fall out when neatly removed.
- 🚫 Encouraging sealing - in devices with protection IP53 (for example, POCO X5 Pro) water protection may disappear after disassembly.
Another common mistake is to try to open the lid without heating it up beforehand. The glue that Xiaomi uses to fix the back panels in premium models becomes brittle at room temperature and can pull layers of glass behind it. Professionals use a thermal air station (from 60+).°C), but at home, a normal hair dryer will also work - the main thing is not to overheat the battery.
⚠️ Warning: If your Redmi is in water and you are trying to disassemble it to dry, do not turn on heating above 40.°C. Overheating of a wet battery can cause it to swell or even ignite.
Tools for opening the lid: what you really need
You can find life hacks online about opening the lid with a knife or credit card, and in practice, this approach almost always ends with scratches on the case or chipped glass, and here is the minimum set of tools that ensures that you disassemble the lid safely:
| Tool. | For which models? | Where to buy | Cost, ₽ |
|---|---|---|---|
| Plastic spatula (suction cup + mediator) | All models with clips (Redmi 9, 10, A-series) | AliExpress, "Chip and Deep" | 150–300 |
| Thermophen (or household hair dryer with nozzle) | Models with glue (Redmi Note) 11/12, POCO F4/F5) | Leroy Merlin, Ozon | 800–2 500 |
| Isopropyl alcohol (90%+) | To remove glue residues | Pharmacy, electronics stores | 200–400 |
| Screwdriver. T3/T4 (magnetic) | For screws under the lid (if any) | "Fix Price," "All Instruments." | 100–300 |
| Scotch (paint, 10 mm) | For fixing plumes and small details | Any construction store | 50–100 |
If you plan to disassemble Xiaomi Redmi regularly (for example, for repairs), it makes sense to buy a set for disassembling smartphones (from 1000). ₽ It's usually on AliExpress:
- 🔧 Mediators of different thicknesses (0.1–0.3 mm)
- 🧲 Suction cup with ring (for models with glass back panel)
- 🔥 Thermoplatform (alternative to fenu)
- 📦 Spin organizer
⚠️ Warning: Do not use metal blades to open the lid - they leave microcracks on the aluminum frame, which eventually lead to corrosion. Exception: special stainless steel blades with rounded edges.
Step-by-step: how to open the lid on models with latches
This category includes most budget Redmi: Redmi. 9A, Redmi 10A, Redmi 8 and some other models POCO (for example, POCO C31). They're lids that are attached to plastic clips that can be snapped off without heating, so you just have to take your time and follow the algorithm:
Turn off your smartphone and remove it. SIM-map|Plug paint tape on the camera glass (scrap protection)|Prepare a plastic spatula and suction cup|Place your phone on a soft surface (a towel or silicone mat)-->
Step 1. Power outage
Before disassembling, be sure to turn off the Xiaomi Redmi and wait until the screen goes out. If the battery is fixed (and in 99% of cases it is), its accidental closure during disassembly can disable the motherboard. If the phone does not respond to the power button, wait 10 minutes for the capacitor to run out.
Step 2. Heat the edges of the lid.
Even if your model is based on clips, light heating (up to 40-50)°C) will facilitate the process. Use the dryer at minimum power, driving it along the seam between the lid and the frame for 1-2 minutes. This will make the plastic more elastic and reduce the risk of latch breakage.
Step 3. Separation of the cover
Apply the suction cup to the bottom of the lid (near the connector). USB-C) And pull it up a little bit. When you get a crack, you put a plastic shoulder blade in it, and you gently lead along the edge, snapping the clips. Don't try to pull the lid off right away, because clips can break if you flex them one by one, and you'd better walk around the perimeter with a blade until the lid is completely detached.
Step 4: Fixing the plumes
Once the lid is removed, you'll see a battery plume (black or orange) and possibly a fingerprint scanner plume. You can't pull them or bend them! Carefully disconnect them with a spatula by pulling them over the edge of the connector (not by the wires!).
What to do if the clips are broken?
Features of opening the lid on models with glue (Redmi Note) 11/12, POCO F4/F5)
Xiaomi Redmi Premium and Mid-Budget (e.g. Redmi Note 12 Pro)+, POCO F5) They have a back cover that's glued all around the perimeter, and you can't use a conventional blade here, you need a combination approach with heating and adhesive solvent:
- 🔥 Clay. B-7000 or 3M — It's used in 90 percent of the models. It melts at 70 to 80.°C, but with uneven heating can pull the glass.
- 📱 Glass back panel – in Redmi Note 12 and newer cover is made of glass, which cracks at point pressure.
- 🔋 Battery on glue - in some models, the battery is also glued, and it can not be pulled out without a special device.
Algorithm for glue models:
- Turn off your phone and drain the battery to 25% (for safety).
- Plug paint tape on the camera glass and logo – this will protect them from scratches.
- Heat the cover with a hair dryer (60–70)°C) for 3-5 minutes, evenly moving around the edges.
- With a suction, lift the lid at the connector. USB-C If the glue doesn't lend itself, put the isopropyl alcohol in the gap, and it will dissolve the glue in 10 to 15 seconds.
- Carefully drive the shoulder blade around the perimeter, repeating the heating if necessary. Don't press hard - the glass may crack!
If the lid does not lend itself, do not increase the temperature - it is better to repeat the heating procedure 2-3 times. In extreme cases, you can use the threads for the guitar (0.2-0.3 mm), slashing it under the lid and cutting the glue with sawing movements.
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If you have glue traces left on the frame after removing the lid, remove them with a plastic scraper (not metal!) and wipe the surface with alcohol.
Frequent Mistakes and How to Avoid Them
Even experienced craftsmen sometimes make mistakes when disassembling Xiaomi Redmi. TOP-5 Problems and ways to prevent them:
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Use of a knife instead of a shoulder blade | Scratches on frame, clips cut | Buy a plastic mediator (costs 50-100) ₽) |
| Heating above 80°C | Deformation of plastic, detachment of glass | Use a thermometer or hair dryer with temperature adjustment |
| A sharp lid-break | Breakage of battery plume or fingerprint scanner | Click the clips in turn, starting at the bottom edge |
| Liquor on the charge | Corrosion of contacts, failure of microcircuits | Apply alcohol only to the edge of the lid, no closer than 1 cm to the board |
| Ignoring magnets | Loss of wireless charging or vibration | Before assembly, check that all magnets are in place. |
The Redmi Note 10 Pro and later uses a lithium polymer battery that is above 60.°If you feel like the body is hot, stop heating and let the phone cool for 10-15 minutes.
⚠️ Warning: If the phone doesn't turn on after disassembly, but the charging indicator is on, the battery plume has probably gone away.
How to close the lid back: assembly tips
Many users successfully open the lid but face problems with reverse assembly, and here are the key points to avoid trouble:
- 🧩 Check the clips - if they break, the lid will dangle. In this case, use double-sided tape (for example, 3M 468MP).
- 🔌 Connect the plumes -- first connect the battery plume, then the fingerprint scanner (if any) -- make sure they get in the connectors before you click.
- 🧲 Check the magnets – in models with wireless charging (Redmi Note 12 Pro)+) magnets must be symmetrically positioned under the coil.
- 🔥 Heat the glue – if you used a new adhesive layer, warm the cover with a hair dryer (40–50)°C) before final fixation.
For models with glass cover (POCO F5, Redmi K50) recommended UV-glue, LOCTITE 3301) It is applied around the perimeter and then freezes under an ultraviolet lamp in 2-3 minutes, which is more reliable than conventional glue, and allows you to reopen the lid without damage if necessary.
After assembly, check:
- 📶 Whether the network is working (antennas should not be clamped down).
- 🔋 Is the phone charging (check the cable) USB-C).
- 🔓 Can the fingerprint scanner be recognized (if any).
- 🔊 Does the speaker and microphone work (sometimes the plumes are clamped with the lid).
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If the phone gets warmer than usual after assembly, the heat on the processor has probably shifted, in which case you need to re-disassemble the device and apply a new paste (for example, Arctic). MX-4).
Models with unique features of disassembly
Some Xiaomi Redmi have a custom design that requires a special approach.
Redmi Note 12 Pro+ 5G
This model has:
- 🔋 Double adhesive layer - the lid is glued to the frame and to the battery. You'll have to heat it up for longer (5-7 minutes).
- 📷 Camera module on screws - before removing the cover, you need to unscrew 4 screws under a decorative plug.
- 🧲 Magnets for wireless charging - there are 6 pieces, and they easily fall out when negligent removal.
POCO X5 Pro
Features:
- 🚫 Protection IP53 — When you disassemble it gets lost, you need to put a sealant on the rubber pads to repair it.
- 🔊 Speaker in the lid - when the panel is separated, it is easy to damage the speaker membrane.
- 🔋 Battery on pull-toads - it can be pulled out without tools, pulling on black ribbons.
Redmi 10C / Redmi A1
Budget models with features:
- 📶 The antennas on the lid are glued to the inside, so don't pull too hard when you're separated, or you'll tear the contacts off.
If you’re not sure about your model, look up the YouTube disassembly by its exact name (e.g., “Redmi Note 11 Pro”).+ This will help to avoid unpleasant surprises.
What to do if the cover does not open
If you followed the instructions, but the Xiaomi Redmi cover still doesn’t lend itself, here are alternative methods:
1. The thread method
Suitable for models with glue. Take a capron thread (0.3-0.5 mm) or a guitar string, put it under the lid at the connector. USB-C And you cut the glue with a sawing movement, and it takes patience, but it's guaranteed to keep the glass safe.
2. Alcohol softening of glue
If the heating doesn't work, moisten the cotton swab in isopropyl alcohol and swipe the seam between the lid and the frame. The glue will soften in 5-10 minutes. Don't use acetone or solvent 646 - they will damage the plastic!
3. Contacting the service
If you're afraid of damaging your phone, you should leave it to the professionals.
- 📱 Budget models (Redmi) 9A, Redmi 10C) — 500–800 ₽
- 📱 Mid-size segment (Redmi Note 11, POCO X4) — 1 000–1 500 ₽
- 📱 Flagships (Redmi) K50, POCO F5) — 1 500–2 500 ₽
⚠️ Note: If you are disassembling Xiaomi Redmi for battery replacement, note that services often install low-quality batteries (without a temperature controller). OEM.