Introduction: Why Redmi Note 5 Decommissioning Needs Caution
Removing the back cover from the Xiaomi Redmi Note 5 is a challenge that owners face when replacing the battery, repairing plumes or cleaning from dust. However, the design of this smartphone has its own peculiarities: the manufacturer used glue and brittle plastic latches that are easy to break when sloppy dismantle. Unlike newer models (for example, the Redmi Note 10), where the lid is attached to the screws, here you will have to work with minimal backlash and precisely calibrated movements.
The main problem is the risk of damage to the flexible battery plume or antenna contacts located under the lid, and improper dismantling can lead to cracks in the plastic or detachment of the adhesive layer, which will complicate the reverse assembly, this guide will help avoid typical errors and keep the device in working order.
Before you start, evaluate your skills: if you've never taken a smartphone apart, you might want to go to a service center, but if you decide to do it yourself, follow our recommendations and don't miss the preparation steps.
What tools will be needed to remove the cover
The Redmi Note 5 doesn't need expensive professional kits to disassemble, but you can't do with the tools you need (knife or screwdriver) either. Here's the minimum kit that guarantees safe dismantling:
- ๐ง Plastic blade (or mediator) - to disconnect latches without scratching. Metal tools leave traces on the body.
- ๐ฅ Hair dryer or thermo-air station to soften the glue. Optimal temperature: 60-70ยฐC (not higher, otherwise the display will be damaged!).
- ๐งฒ Suction cup - helps to lift the cover after heating, even a regular glass suction cup with a diameter of 3-4 cm will do.
- ๐ฆ The screw container -- Redmi Note 5 has few, but it's better not to lose it.
- ๐งด Isopropyl alcohol (90%+) โ Acetone or solvents should not be used to clean glue residues!
You may also need tweezers (to untie the plumes carefully) and a magnifying glass (to consider the small details).If you are planning a battery replacement, prepare a new one with adhesive 3M or similar in advance, which will make it easier to reverse assemble.
โ ๏ธ Warning: Do not use a building dryer at maximum power! hot air flow can warp plastic or damage the screen. Keep the dryer at a distance of 10-15 cm and move it constantly.
Preparing a smartphone for disassembly: steps that can not be missed
Before removing the lid, several critical actions must be taken, and skipping at least one of them can cause data loss, short circuit or damage to internal components.
Turn off your smartphone and remove it. SIM-memory-card
Charge the battery to 30-50% (full charge is dangerous when heated!)
Make a backup copy of the data (photos, contacts, messages)
Prepare a clean, well-lit workplace
Wear an antistatic bracelet or touch a grounded object periodically-->
Pay special attention to the battery. If it swells (this is noticeable by the deformation of the lid or the increase in the gap between the body and the screen), disassembly is better entrusted to the professionals. A bloated battery can ignite when mechanically exposed!
Also check if the device is warranty-free: Disassembling the Redmi Note 5 will self-cancell Xiaomi warranty obligations, even if you do nothing to damage.
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If you don't have an antistatic bracelet, wrap your hands in foil and ground it by touching, for example, a heating battery, to avoid static discharge that could damage the motherboard.
Step-by-step: how to remove the cover from the Redmi Note 5 without damage
Now, to the most critical stage, follow the instructions in strict order and take your time, and the average time for a beginner to disassemble is 20 to 30 minutes.
- Heat the body. Turn the dryer on at medium power and warm the back cover evenly for 2-3 minutes, paying attention to the edges. The glue should become elastic, but not spread out.
- Disconnect the latches. Put a plastic blade in the gap between the lid and the body at the charging connector. Carefully drive it along the edge, alternately snapping the locks. On the Redmi Note 5, there are about 12 to 14 of them.
- When the gaps become noticeable (1-2 mm), apply the suction cup closer to the top edge of the smartphone and pull up. The lid should rise without resistance.
- Final section, keep putting the lid on with your shoulder blade as you move around the perimeter, and if it doesn't, warm up the problem area with a hairdryer again.
When you remove the lid, you'll see the battery covered with black film. Don't pull the plumes! First, disconnect the battery by putting a plastic blade on the connector (it's under a small metal plate), and then you can start disassembling it further.
| Phase | Possible errors | How to avoid |
|---|---|---|
| Heating with a hair dryer | Overheating of the display (spotting) | Control the temperature with your hand โ the body should be warm, but not hot |
| Latch cracking | Broken plastic fixtures | Do not press on the shoulder blade, but smoothly move the cover. |
| Battery disconnection | Short circuit when touched with metal tools | Use only plastic or wooden blades |
| Removal of the lid | Damage to antenna contacts (metal stripes at the edges) | Do not pull the lid sharply โ first make sure that all latches are snapped. |
โ ๏ธ Warning: If after removing the lid you find that the battery is swollen (seen by bulge or deformation), do not turn on the smartphone and do not try to charge it! Remove the battery immediately (in gloves!) and dispose of it at a special reception point.
What to do if the lid is not removed: typical problems and solutions
Even if you follow the instructions accurately, you can have difficulties, and let's look at the most common ones and how to fix them.
- ๐ฅ The glue doesn't soften. Possible causes: low hair dryer temperature or uneven heating. Solution: Increase the warming time to 4-5 minutes by paying attention to the corners of the smartphone, where the glue is usually higher.
- ๐ง The latches don't snap. Often this is due to the deformation of the body (for example, after a fall), Solution: try starting at the other end or using two blades simultaneously, spreading pressure.
- ๐ฅ If the plastic bursts during dismantling, don't try to continue - the fragments can damage the internal components. Solution: order a new cover (article for Redmi Note 5 โ MB1156) And install it after the repair is complete.
- ๐ The battery is too glued. Some Redmi Note 5 batches have used a lot of glue. Solution: gently tuck the battery into a plastic card, preheat it with a hair dryer. Don't use metal tools!
If none of these methods worked, it is possible that the lid has been repaired and fixed with an additional glue (e.g. B-7000), in which case you will have to use a solvent, but you need to work with it extremely carefully.
- Apply a few drops of isopropyl alcohol into the gap between the lid and the body.
- Wait 1-2 minutes until the glue begins to dissolve.
- Repeat the attempt to detach with the shoulder blade.
What to do if the latch breaks?
Reverse Assembly: How to install the cover back without gaps
It's only half the battle to get the lid off, and it's just as important to build your smartphone properly to avoid creaking, backlashing, or bad fit.
- Surface cleaning. Remove the residues of old glue from the lid and body with isopropyl alcohol and a lilac-free wipe. Pay special attention to the areas around the antenna contacts.
- Check plumes. Make sure all flexible cables (batteries, cameras, buttons) are connected correctly and not twisted. On the Redmi Note 5, the battery plume should lie flat, without bending.
- Applying glue. If you use a new adhesive layer, apply it in a thin, uniform layer around the perimeter of the lid, receding 1-2 mm from the edges. Avoid getting glue on the speaker or microphone!
- Fix the latches. Start at the top edge of the lid, press it gently with your fingers. Then move down, making sure that all the latches are in place (you hear slight clicks).
After assembly, check the operability of the device:
- ๐ถ Network. Make sure the antennas are working (check signal strength).
- ๐ Charge. Connect the cable and check if it's charging.
- ๐ต Speaker and microphone. Call another phone and check the sound.
If you're walking around after you've assembled the lid, or if you hear a foreign sound when you press it, you're not going to get the locks in place, and you're going to have to reassemble the lid and reassemble the device.
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When you build the Redmi Note 5 back, never press the lid too hard, it can damage the display module.
When the Disassembly is Not Justified: Alternative Solutions
It's not always a self-repairing option. In some cases, disassembling the Redmi Note 5 can do more harm than good.
- ๐ฆ If the smartphone fell into the water or spilled a drink on it, disassembly without special equipment (ultrasonic bath, tester) can lead to corrosion of contacts.
- โก Power problems: If the device doesn't turn on, charge or spontaneously turn off, the cause may be the motherboard.
- ๐ฑ Cracked Display: Replacing the screen on the Redmi Note 5 requires detaching the touchscreen plume and display module.Without experience, it's easy to damage these fragile parts.
- ๐ Software failures. If the problem is firmware (hangs, bugs), disassembling the case won't help.
The cost of repairs at the Redmi Note 5 service center (as of 2026) varies depending on the fault:
| Type of repair | Cost (โฝ) | Time (hours) |
|---|---|---|
| Battery replacement | 1 200โ1 800 | 1โ2 |
| Replacement of the display (original) | 4 500โ6 000 | 2โ3 |
| Cleaning of dust/mud | 800โ1 500 | 1 |
| Repair of plumes | 2 000โ3 500 | 3โ4 |
If you still decide to disassemble the smartphone yourself, but faced difficulties, do not hesitate to seek advice from specialists. Many service centers offer a service of "diagnostics after self-repair" - this is cheaper than eliminating the consequences of a failed disassembly.