Replacing the battery, repairing the charging plume or cleaning dust β all of these tasks require removing the back cover of the Xiaomi Redmi smartphone. But the manufacturer did not provide a simple mechanism for disassembling: the lid is glued to the body, and improper actions can lead to cracks, damage to the plumes or even failure of the device.
In this article, you will find step-by-step instructions for different Redmi models (from Redmi 4X to Redmi Note 12 Pro+), a list of necessary tools and critical warnings that will save your phone from breakdown, and we will also analyze when the analysis is justified and when it is better to contact the service center.
If you've never taken a smartphone apart before, start by learning how to design your model. For example, the Redmi Note 10 and Redmi 9 have different attachments: the first uses double-sided tape, the second uses latches. + Not universal solutions, every phone requires a personalized approach.
Before you start, answer yourself the question, "Do you need one?". The phone is not warranty-free (if it's still valid), and the failure to dismantle can cost more than the wizard's services. If the goal is to replace the battery, assess its actual wear through the AccuBattery app or the built-in diagnostics (Settings β Battery status).
What tools will be needed to remove the cover
Without the right tools, itβs almost impossible to remove the Xiaomi Redmi cover.
- π§ Plastic mediators (2-3 We can't use metal mediators, which scratch the plastic and can damage the plumes.
- π₯ Hair dryer or thermo-air station for softening the glue. Optimal temperature: 60-80Β°C. Higher values will melt plastic.
- π§² Suction cup (optional) - helps to lift the cover after heating. Suitable suction cup for glass with a diameter of 3-5 cm.
- π Thin screwdriver (T3, T4) β For unscrewing screws under the lid (if any) some models (Redmi Note 8 Pro) have screws hidden under stickers.
- π§΄ Isopropyl alcohol (90%+) β Acetone or solvents are prohibited from being used!
If you don't have a hair dryer, you can use hot water (not boiling water!): place the phone in a warm water bag (50β60Β°C) for 2-3 minutes. This will soften the glue, but increases the risk of moisture getting inside. After the procedure, be sure to dry the device in rice or silica gel for at least 12 hours.
For models with a glass back panel (Redmi K50, Redmi Note 11 Pro+) will require special glue for re-assembly (for example, B7000 or T7000).
Preparing the phone for analysis: 5 mandatory steps
Before removing the cover, follow these steps to minimize the risks:
Turn off the phone and remove it. SIM-map + memory-card
Charge the battery by 30-50% (full discharge or 100% charge is dangerous!)
Make a backup of the data (in case of damage)
Remove the cover and protective film (they interfere with access to the seams)
Prepare the workplace: clean desk, good lighting, antistatic mat-->
Pay special attention to the battery. Lithium polymer batteries are sensitive to mechanical stress. If you're planning to replace it, don't pierce or bend it, it can lead to fire. In Redmi models older than 2020, the battery is glued to the body, and its dismantling requires caution.
If the phone was in water or was hit, the analysis can be dangerous, in such cases it is better to contact the service, corrosion on the board or cracks in the case - a signal that self-repair is fraught with final breakdown.
π‘
Before heating the cover with a hairdryer, stick paint tape on the screen - this will protect it from accidental scratches when the mediator slips.
Step-by-step: how to remove the lid from different models Xiaomi Redmi
The design of the lid depends on the model, and here is a universal algorithm based on the features of popular series.
1. Removable lid models (rare): Redmi 4X, Redmi 5A
These phones have a lid on the latches to take it off.
- Insert a nail or plastic mediator into the gap between the lid and the body (usually at the bottom, next to the headphone jack).
- Carefully drive the mediator around the perimeter, snapping the locks.
- Lift the lid - it should separate without effort.
Warning: Do not pull the lid up at once - first release all latches, otherwise you will break the plastic locks.
2. Models with glue fixation: Redmi Note 8/9/10/11, Redmi K40/K50
You'll need heat here. Follow the instructions.
- Heat the lid with a hair dryer around the perimeter (especially in the corners) for 1-2 minutes. Keep the hair dryer at a distance of 5-10 cm so as not to overheat the plastic.
- Stick the suction cup to the center of the lid and pull it up slightly. If the lid doesn't lend itself, repeat the heat.
- Insert a plastic mediator into the gap and slowly move it along the seam, separating the glue. Take your time, sudden movements will lead to cracks.
- Once the lid is 2/3 apart, carefully remove it completely. There may be plumes under the lid (like a fingerprint scanner) - don't pull them!
In the Redmi Note 10 Pro and later, there are screws under the lid (usually 6-8 pieces), which must be unscrewed before the panel is completely removed, otherwise you can damage the plumes.
What to do if the lid does not lend itself?
3. Models with glass back panel: Redmi K30 Pro, Redmi Note 11 Pro+
The glass is fragile, so be careful:
- Heat the cover with a hair dryer at a minimum temperature (60Β°C) for 3-4 minutes.
- Use two suction cups (on the sides) to lift evenly. One suction cup can break the glass.
- Once there's a gap, insert a mediator and slowly separate the glass, and if you hear a crack, stop and repeat the heat.
Critical: under the glass cover are often antenna tapes, if you tear them off, the signal will deteriorate the network and Wi-Fi. When you build, use new glue and gently press the tapes.
| Xiaomi Redmi Model | Type of lid attachment | Features of the parsing | Risks. |
|---|---|---|---|
| Redmi 4X, 5A | Latches | The cover is removed without heating | Broken locks |
| Redmi Note 8/9 | Glue + latches | Heat to 70Β°C is required | Damage to the fingerprint scanner plume |
| Redmi Note 10 Pro | Glue + screws | Under the lid 8 screws (T3) | Breaking the camera plume |
| Redmi K50 | Glue + glass | Two suction cups required | Cracks on the glass |
What not to do when removing the cover: 7 critical mistakes
Even experienced craftsmen sometimes make fatal mistakes, and this is strictly forbidden.
- β‘ Use a knife or screwdriver instead of a mediator β the metal will cut through the plumes or leave scratches on the body.
- π₯ Overheat the cover above 80Β°C β plastic is deformed, and the glue can leak inside the body.
- π¦ Water the phone with hot water - moisture will fall under the screen or on the board, which will lead to corrosion.
- π§ Unscrew screws without a magnetic screwdriver - a fallen screw can close contacts on the board.
- π± Pull the lid around corners - in 90% of cases, this leads to cracks.
- π Puncture the battery β even a small damage can cause a fire.
- π§² Use powerful magnets β they will damage the compass and speakers.
β οΈ Warning: If you see a bloated battery after removing the lid (it looks like a pillow), don't touch it or try to continue disassembling it. Bloating means the battery is unstable and could explode. Immediately place the phone in a non-combustible container (for example, a metal pelvis) and take it to the service.
Another common mistake is the wrong build, and if you don't turn on your phone after you change the battery or clean it, check:
Are all the plumes connected (especially the display and battery)?
- Any foreign screws or parts inside the hull.
- Is it properly installed? SIM-Card (sometimes it blocks contacts).
How to put the lid back: so that it does not fall off in a week
If you take the lid off, you have to lock it back securely. Here's how to do it correctly:
For plastic covers (Redmi Note 9, Redmi 8):
- Clean the case and cover of the old glue with isopropyl alcohol.
- Apply a thin layer of B7000 glue around the perimeter of the body (not on the lid!).
- Carefully press the cover, starting from the top (where the buttons are located).
- Secure the lid with paint tape and leave for 2-3 hours under the press (for example, under a stack of books).
For glass covers (Redmi K50, Redmi Note 11 Pro+):
- Use 3M double-sided tape or T7000 liquid glue.
β οΈ Warning: If the phone overheats or discharges quickly after assembly, you're probably overpressed by the plumes or you've misconnected the battery. Disassemble the device again and check all connections.
To check the leakage after assembly, place the phone in a bag with silica gel for 12 hours, if a day later condensate appears inside the package, then the lid is not tightly glued, and moisture can penetrate into the package.
π‘
If the fingerprint scanner, NFC or wireless charging is not working after assembly, the problem is the damaged plumes or antennas, in which case professional repair is required.
When it is better not to take risks: cases when analysis is dangerous
Not all breakdowns require removal of the lid, but here are situations where self-discussion is not warranted:
- π΅ Network or Wi-Fi problems are more often a software failure or module malfunction than a mechanical failure.
- π The speaker or microphone does not work β the reason may be oxidation of contacts, which is eliminated only in the service.
- π The phone doesn't turn on after a fall, maybe the board is torn off or the memory chip is damaged.
- π§ Fluid intrusion - even if the phone is turned on, corrosion can show up in weeks.Ultrasound cleaning needs.
- π² The touchscreen does not work - in 90% of cases the plume of the display is to blame, which is easily damaged when disassembled.
If youβre still trying to disassemble your phone but youβre facing one of these problems, stop and see a specialist, for example, replacing the camera plume in the Redmi Note 10 will cost between 1,500 and 2,500. β½, a self-repair can lead to damage to the motherboard (repair price - from 5 000). β½).
Remember: warranty repairs are always cheaper than fixing the consequences of a failed parsing. Check the status of warranty through the official Xiaomi website on the IMEI phone.