The back cover of the Xiaomi Redmi 9T is not just a decorative element, but an important part of the design that protects the internal components of the smartphone. Many users face the need to remove it, whether it is replacing the battery, cleaning from dust or repairing after a fall. However, an improper opening can lead to cracks in the body, damage to the plumes or even failure of the power and volume buttons.
In this article, we will discuss how to safely dismantle the Redmi 9T (model M2010J19SG), what tools you need and what to look for. We have taken into account all the nuances of the design, including hidden latches and features of the adhesive joint. If you have never taken apart a smartphone before, don’t worry: our instructions are suitable even for beginners.
Preparation for disassembly: what you need to know before the beginning
Before you start screwdriver, it's important to understand what you're dealing with. Xiaomi Redmi 9T refers to budget smartphones with a non-shattered body, where the back cover is glued to the frame, which means that removing it will require not only accuracy, but also special tools.
- 🔧 Glue instead of screws: Unlike flagships, where the lid can be attached to latches, adhesive connection is used around the perimeter.
- 📱 Fragile plastic: the cover material is prone to cracks when bending, especially in corners near the chamber.
- ⚡ Risk of damage to plumes: under the lid are tapes from the battery to the motherboard - they are easy to touch the tool.
- 🔋 Battery under voltage: even when the phone is turned off, capacitors can retain charge.
If you're not sure about your abilities, you should go to the service center, but with the right approach, disassembling the Redmi 9T is no more difficult than replacing the battery in the remote, the main thing is to take your time and follow the instructions Step-by-step.
⚠️ Attention: removing the cover will void the warranty Xiaomi, if there is no visible damage to the case. Before disassembling, make a backup copy of the data - if you carelessly move, you can damage the motherboard.
Tools you need: what to buy and where not to save
You need a minimal set of tools to take the Xiaomi Redmi 9T off the lid accurately. Don't try to get by with the tools at hand (knives, credit cards or toothpicks) - it's almost guaranteed to lead to scratches or chips.
| Tool. | Appointment | Where to buy | Cost (2026) |
|---|---|---|---|
| Plastic spatula (suction cup + mediator) | Separation of the lid from the frame without scratches | AliExpress, "Chip and Deep" | 150 ₽ |
| Thermo-air station or hair dryer (power ≥ 1500 W) | Perimeter glue softening | Leroy Merlin, Ozon | 800 ₽ |
| Isopropyl alcohol (90%+) | Cleaning of glue residues after disassembly | Pharmacy, Fix Price. | 100 ₽ |
| Thin screwdriver T3 or T4 | Spinning the screws under the cover (if required) | "All Instruments," "220 Volts." | 200 ₽ |
| Nitrile gloves | Protection against static electricity and glue | Pharmacy, Obi. | 50 ₽ |
Pay special attention to the choice of a blade. It should be made of flexible plastic (polycarbonate or nylon) with a thickness of no more than 0.5 mm. Metal tools will leave scratches on the aluminum frame. If you plan to disassemble equipment often, invest in a set for repairing smartphones (cost from 1000). ₽ AliExpress).
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Check the reviews before buying the tools: cheap blades from China often break when used for the first time, with iFixit or X-Torx brands being the best option.
Step-by-step: how to remove the cover without damage
Now, the most critical step is to follow the instructions in strict order, and skipping the steps can cause the latches to break or the plumes to break, and it takes about 20 to 30 minutes.
Turn off the phone and remove it. SIM-memory-card|
Charge the battery to 30-50% (this is a safe level for disassembly)|
Prepare the workplace: clean desk, good lighting, no carpets (static electricity!)|
Put on gloves and make sure the tools are on hand.-->
Step 1: Heating the body
The glue that glues the lid becomes elastic at a temperature of 60–80°C. Use a dryer at minimum power (or a thermal air station at 70°C) and evenly warm the edges of the phone for 2-3 minutes. Keep the hair dryer at a distance of 5–7 cm so as not to overheat the display.
Warm up the corners near the camera and connector especially carefully. USB-C — Don't send hot air to the screen for more than 10 seconds in a row so you don't damage it. OLED-The matrix (although in Redmi) 9T used IPS, overheating is still harmful).
Step 2: Separation of the lid with a shoulder blade
When the case is heated, attach the suction cup to the bottom of the phone (near the charging connector). Pull up carefully, creating a small gap. Put a plastic spatula in it and slowly drive along the edge, separating the lid from the frame.
Critical moments:
- 🛑 Don’t push too hard – the cover may crack.
- 🔄 If the shoulder blade rests, warm up this area again with a phenome.
- 📍 The most problematic areas: near the volume buttons and slot for SIM-map.
Step 3: Complete removal of the lid
When the lid is 2 to 3 mm apart, gently pull it on several sides and remove it. Don't pull around the corners, there are antenna wires going through! Place the lid on a soft surface (such as a microfiber) so you don't scratch.
Under the lid, you'll see:
- 🔋 Battery (stick to the body).
- 📶 Antenna modules (do not touch them unnecessarily!).
- 🔌 Power and volume button plumes.
- 🖥️ Metal plate protecting the motherboard.
What to do if the lid does not lend itself?
⚠️ Warning: Don't touch the motherboard with your bare hands after you remove the lid. Static electricity can disable the chips. If you want to touch the board, touch the grounded metal object first.
Frequent Mistakes and How to Avoid Them
Even experienced craftsmen sometimes make mistakes when disassembling Xiaomi Redmi 9T. We have collected the most common problems and ways to prevent them:
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Too much heat by a hair dryer | Deformation of plastic, detachment of the sensor from the display | Use a thermometer to control temperature (maximum 80°C) |
| Separation of the corner cover | Cracks in the area of the camera or USB-C connector | Start at the bottom of the phone where the body is thicker. |
| Use of metal tools | Scratches on the frame, damage to antenna lines | Only plastic or wooden shoulder blades |
| A sharp jig of the lid | Breaking of the power button or vibration motor | Move the shoulder blade smoothly, without jerking |
Another common mistake is to ignore the glue residues when reassembled. If you don't clean the frame of the old glue, the new lid will hold poorly, and over time, you'll have a backlash, use isopropyl alcohol and cotton swabs to clean, and then apply a new glue (e.g., B-7000 or 3M VHB).
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If the phone doesn't turn on after disassembly, check the battery connection and the display plume. In 90% of cases, it's them, not the motherboard, that's the problem.
Reverse Assembly: how to properly seal the cover
When the repair is complete, you need to put the lid back in place so that it's held tight and doesn't creak.
- Surface cleaning: Remove the residues of old glue from the frame and lid with isopropyl alcohol.Do not use acetone - it can damage the plastic!
- Applying new glue: If you use double-sided tape (e.g. 3M 467MP), cut it with strips 2-3 mm wide and stick around the frame. For liquid glue (B-7000), a few drops in the corners are enough.
- Lift alignment: gently place the lid in place, combining the camera holes and connectors. Press it evenly, starting from the center.
- Fixing: Put the phone under a load (such as a book) for 1-2 hours to get the glue.
After assembly, check:
- 🔊 Performance of speakers (no wheezing or muted sound).
- 📶 Network signal quality (antenna lines must not be damaged).
- 🔋 Battery charging (if contacts are shifted, the phone will not charge).
If the lid is playing or creaking after assembly, there's not enough glue, so take the phone apart and put an extra layer on it.
Alternative methods: when the standard method does not work
Sometimes the Redmi 9T lid refuses to give in even after heating.
- 🔨 Factory marriage (excess glue).
- 🔧 Previous repairs (used epoxy glue).
- 🌡️ Low temperature in the room (glue becomes too viscous).
Alternative methods can be tried in such cases:
Method 1: Use of thread
Thin but strong thread (such as a tooth line or fishing line) between the lid and the frame, carefully saw it around the perimeter, while warming the body with a hairdryer, this method requires patience, but reduces the risk of damage to a minimum.
Method 2: Softening of the glue with solvent
Apply a few drops of acetone or white spirit to the edge of the lid (not on the display!). Wait 5-10 minutes until the glue softens, then try to separate with a spatula. Importantly, this method is risky for plastic - test on an unnecessary device!
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If none of the methods worked and the phone is still warranty, contact Xiaomi Service Center, and in some cases, the lid will be replaced for free, even if you damaged it when you tried to disassemble.
Video instruction and additional resources
For a better understanding of the process, we recommend watching the video disassembly Xiaomi Redmi 9T. Pay attention to the points:
- 🎥 0:45 – how to hold the shoulder blade properly, so as not to scratch the frame.
- 🎥 2:10 – separation of the cover near the volume buttons (most difficult place!).
- 🎥 3:30 – check the plumes after removing the lid.
Useful links:
- 🔗 Official iFixit Guide (in English, but with detailed photos).
- 🔗 Discussion on 4PDA (There are specific advices on specific issues).
- 🔗 YouTube video (see "Redmi" for "Redmi" 9T teardown»).
If you plan to regularly disassemble smartphones, we recommend buying a magnetic screw mat (cost). ~300 ₽). It will help you not lose small details and keep them in order.