Disassembling the Xiaomi Mi is a challenge that owners face when replacing the battery, repairing the screen or cleaning from dust. Despite its apparent simplicity, the process requires care: opening the case incorrectly can damage the plumes, cracks in the back panel or even failure of the device. In this article, we will discuss universal methods for all Mi generations (from the budget Mi A to the flagships of the Mi 14), specify the necessary tools and warn against typical errors.
It is important to understand that the design of the Xiaomi Mi body has evolved: early models (before the Mi 9) often had a removable back cover, while modern devices are glued around the perimeter and require heating for safe separation. We will also touch on the issues of warranty - self-disassembly automatically voids the official Xiaomi warranty, even if you do not damage the components. If your smartphone warranties, you better contact the service center.
Preparation for disassembly: tools and security measures
Before you start opening the Xiaomi Mi, prepare your workspace and tools.
- 🔧 Plastic mediators (2-3 (S) - for the removal of the lid without scratches.
- 🔥 Dryer or thermo-air station - for softening the glue (temperature 60-80)°C).
- 🧲 Suction - helps to pick up the cover after heating.
- ⚡ Screwdriver. T3/T4 — screw-hole.
- 📦 Logs for screws - so as not to lose small details.
We also recommend using an antistatic bracelet or periodically touching a grounded metal object to protect the board from static electricity. Work on a clean, well-lit surface, preferably on a soft substrate (such as a silicone mat), to avoid slipping the device.
⚠️ Warning: Do not use metal tools to lid the lid - they leave scratches and can damage antenna lines along the perimeter of the housing.°C, possible deformation of plastic or detachment of the display.
Connect an antistatic bracelet | Check battery power (less than 25%) | Prepare a screw tray | Heat the case around the perimeter (no more than 80 ° C) | Disconnect the smartphone from the network-->
How to open Xiaomi Mi with a removable cover (Mi 4, Mi 5, Mi A1, etc.)
The older Xiaomi Mi models (released before 2018) often had a removable rear panel, which greatly simplified access to the battery and the battery. SIM-To open up such a device:
- Turn off your smartphone and remove the tray for SIM-map.
- Find a small notch at the bottom of the case (usually next to the USB-Type C or Micro-USB connector).
- Tap the lid with a plastic mediator, starting with the notch, and carefully guide it around the perimeter.
- After clicking, remove the cover - it is attached to the latches.
Inside, you'll see the battery, the motherboard and the camera. Notice that even in these models, the fingerprint scanner plume can be brittle -- don't pull the lid out so you don't rip it off. If the lid doesn't lend itself, don't force it: you may have missed the latch.
What to do if the latch breaks?
Disassembly of adhesive models (Mi 9, Mi 10, Mi 11 and newer)
Modern Xiaomi Mi smartphones (starting with the Mi 9) have a single body glued around the perimeter. They will require heating and neat detachment of the lid.
- Turn off the device and place it for 3-5 minutes under the hair dryer (temperature 60-70 ° C), evenly warming the edges.
- Suction the suction cup onto the bottom of the screen (near the charging connector) and pull up.
- Insert a plastic mediator into the resulting gap and slowly lead it along the body, separating the glue.
- After the lid is completely removed, gently lift it – there may be plumes inside (for example, a fingerprint scanner plume or antenna cables).
If the cover fails, repeat the heating for another 2-3 minutes. Do not use a knife or screwdriver, they will damage the antenna lines, which will lead to deterioration of the network signal. In Mi 11 and newer models, the glue is especially durable, so you may need a special adhesive solvent (for example, B-7000).
| Model | Type of lid attachment | Features | Difficulty disassembling (1–5) |
|---|---|---|---|
| Mi 8 | Glue + latches | Fragile fingerprint scanner plume | 3 |
| Mi 9 | Perimeter glue | Thin body, the risk of deformation during heating | 4 |
| Mi 10 Pro | Glue + screws under the lid | Additional screws under the back panel | 5 |
| Mi 11 | Reinforced glue | Requires a solvent (e.g., B-7000) | 5 |
💡
If the lid doesn't separate after heating, try using a thin guitar string (0.1-0.2 mm) between the body and the lid, neatly cutting the glue, a technique that requires skill, but is effective for models with particularly strong adhesives (such as the Mi 11 Ultra).
Battery shutdown: why it's critical
When the case is opened, the first thing you need to do is turn off the battery, which will prevent short circuits from accidentally touching the board with tools. In most Xiaomi Mi models, the battery is connected via an FPC (flexible plume) connector with a latch, to disconnect it:
- Find the battery connector on the motherboard (usually black or orange).
- Carefully tuck the latch with a plastic spatula or tweezers.
- Remove the plume by pulling it up (do not apply force!).
If the latch is broken or the plume is not removed, do not try to pull it out by force, this can damage the contacts on the board, in which case use insulation tape to isolate the contacts of the battery before further work.
⚠️ Attention: In Mi models 10T mi 11T The battery is glued to the body with double-sided tape. Don't try to tear it off by force, it can damage the cells. Use a plastic card and solvent isopropyl alcohol to neatly separate.
Plastic mediators|Metal spatula|Suction cup. + hairdryer|Special repair kit|Other-->
Frequent Mistakes and How to Avoid Them
Even experienced users make mistakes when disassembling Xiaomi Mi. Here are the most common problems and ways to prevent them:
- 🔋 Battery plume damage – always turn off the battery first thing, even if you plan to only work with the lid.
- 📶 Break antenna lines - do not use metal tools to separate the cover.
- 🔧 Loss of screws – Xiaomi Mi often uses screws of different lengths. If you confuse them, you risk damaging the board when you build them.
- 🌡️ Overheating of the body - temperature above 90°C deforms plastic and can detach the display from the frame.
Another common mistake is the wrong build, for example, if you forget to plug in the fingerprint scanner plume, the sensor will stop working, and in the service center it may be considered mechanical damage (which is not covered by warranty), always take pictures of the disassembly process or use the diagrams from official manuals (for example, on the iFixit website).
(1) Battery connection;
(2) Integrity of the display plume;
(3) No short circuit on the board (visually check for darkening or burning smell).-->
When to contact the service center
Not all breakdowns can be repaired by yourself.
- 💧 On the board, traces of corrosion or oxidation are visible (liquid ingestion).
- 🔥 The smartphone overheats or turns off when loaded (possible problems with the processor or battery).
- 📱 The display does not respond to touch, but the backlight is working (damaged plume or touch controller).
- 📡 No network signal after disassembly (damaged antenna lines).
The cost of repairs in official service centers Xiaomi starts from 1,500 ₽ (Replacement of the battery and up to 10,000 ₽ (However, self-repair without experience can cost more - for example, replacing a damaged motherboard in the Mi 11 costs up to 20 000. ₽.
If you're in doubt, use diagnostics (free in most services), a wizard will assess the complexity of repairs and give you the exact cost. For models over 3 years old, it's often more profitable to buy a new smartphone than to repair the old one.