Xiaomi Mi Play is a popular budget model of 2018, which is still in use today. However, over time, even such a reliable device can require repairs, from replacing the battery to cleaning the connectors or recovering from a fall. Disassembling the phone at home is a task that is feasible, but requires accuracy and knowledge of the key points.
In this article, you will find detailed instructions for disassembling step-by-step photos, a list of tools you need, and unique tips to help avoid typical errors. We will also tell you which parts of the Mi Play are most vulnerable to disassembly, how to properly detach the plumes, and what to do if the phone stops turning on after self-repair.
If you've never disassembled a smartphone, you'd better practice on a less valuable device or go to a service center. But if you're confident in your abilities, let's get started!
Preparation for disassembly: tools and precautions
Before you start disassembling the Xiaomi Mi Play, make sure you have everything you need. The wrong tool or haste can damage the body, display or internal components.
- π§ Plastic blade (or mediator) - for careful liding and disconnection of plumes.
- π¨ Set of screwdrivers (cross-haul) PH00 and flat 1.5 mm) - for screw unscrewing.
- π§² Magnetic mat or container β to avoid losing small details.
- π₯ Dryer or thermoair station - to soften the glue (if you plan to remove the display).
- πΈ Smartphone for photography β capture each step so as not to confuse the order of the assembly.
Pay special attention to the workplace: it should be clean, well-lit and without static electricity (ideally an antistatic mat), and do not disassemble the phone on a carpet or soft surface - small parts can easily get lost.
β οΈ Note: If you are disassembling the Mi Play due to battery problems (blown, quick discharge), do not use metal tools to jack the lid - this may lead to a short circuit!
Step 1: Removing the back cover
The back cover of the Xiaomi Mi Play is mounted on latches and glue, so you need to remove it carefully. Start by heating the body with a hair dryer (temperature ~60 Β° C) around the perimeter for 2-3 minutes - this will soften the glue.
- Insert a plastic blade into the gap between the lid and the case (it is better to start from the lower corner, where the speaker and USB-C connector are located).
- Carefully swipe along the edge, gradually snapping the clamps. Don't put too much effort into it, the lid should move with a slight resistance.
- After all the latches are snapped, remove the lid and put it aside.
Under the lid, you'll see the battery, the motherboard and a few plumes. Don't pull the plumes, they're fragile and they can come off the board!
No cracks in the body|Integrity of plumes|Are there any traces of oxidation on the contacts?|All screws in place (not lost)-->
Step 2: Shutting off the battery
Before any manipulation of the internal components, be sure to turn off the battery, which will prevent short circuit and damage to the board. In the Mi Play, the battery is attached to duct tape and its plume is connected to the motherboard.
Algorithm of action:
- Find the battery plume β it is located at the top of the battery and is covered with a black protective cover.
- Carefully tuck the lid with a plastic spatula and remove it.
- Pick up the plume behind the plastic connector (don't pull the wires!) and unplug it from the board.
If the battery is swelling, do not try to pierce or bend it, this can lead to fire, in which case it is better to immediately replace the battery with a new one.
β οΈ Warning: If the battery is turned off, the phone is still on when you connect to the charger, the problem is the circuit board capacitors.
What to do if the battery drains?
Step 3: Removing the motherboard
The Xiaomi Mi Play motherboard is mounted with multiple screws and connected to other components through plumes to extract it:
- Unscrew all the screws (usually 8-10 pieces) with a PH00 cross screwdriver. Fold them in a magnetic container so as not to confuse them when assembled.
- Disconnect all plumes: π± Display plume (at the top of the board). π Dynamics and microphone plume (bottom). πΆ The antenna plume (may be glued).
Carefully tuck the board with a plastic spatula and remove it. Don't pull the edges -- there may be soldering elements on the board!
If the charge doesn't work, check if all the screws are unscrewed. Sometimes manufacturers hide one screw under a sticker or in an unexpected place (for example, under a tray for the purpose of the car). SIM-map).
| Component | Number of screws | Type of screwdriver. | Notes |
|---|---|---|---|
| Maternity fee | 8-10 | PH00 | Wheels of different lengths - remember the location! |
| Dynamician | 2 | PH00 | It can be attached to bilateral scotch. |
| Camera. | 1 | PH00 | The plume is very fragile - don't overdo it! |
| Vibromotor | 1 | 1.5 mm flat | Maybe it's glued. |
Step 4: Disassembly of the display module
If you need to replace the display or touchscreen, you have to remove the front panel, which is the most difficult step, because the display is glued around the perimeter.
- Warm up the screen with a hair dryer (~70Β°C) for 3-5 minutes. Start at the edges, then warm up the center.
- Place the suction cup on the bottom of the screen (where the USB-C connector is located) and pull up slightly.
- In the resulting gap insert a plastic blade and carefully conduct it along the edge, separating the display from the body.
- After separation of the screen, disconnect the display plume and touchscreen from the motherboard.
Another common mistake is the tangled screws, and the Mi Play uses screws of different lengths, and if you screw a long screw into an undesigned place, you can damage the board, so to avoid that, you can arrange the screws in order or take pictures of their location.
(1) Whether the battery is connected.
(2) Whether the display plume is bent.
3) Whether all screws are twisted (unwounded may cause short circuits).-->
Build the phone: reverse order and check
The Xiaomi Mi Play is built in reverse order, but with some nuances:
- Make sure all plumes are tightly connected (they should click when fixing).
- Check if there are any foreign objects (cogs, pieces of plastic) inside the phone.
- Stick the back cover to a double-sided tape (e.g. 3M 9448A) or use the original glue.
- Twisting the screws cross-cross to avoid skewing the board.
After assembly, do not turn the phone on immediately - let the glue grab (if you used it for the cover or display). After 10-15 minutes, connect the charger and check the health:
- π Is the battery charging.
- πΆ Is there a network (check it out) SIM-map).
- π Does the speaker and microphone work.
- π· Is the camera functioning.
If something doesnβt work, take the phone apart again and check the appropriate plumes or contacts.