The Xiaomi A5 (also known as the Mi A5 in some regions) is a popular model with a balance of price and performance, but even it is not immune to breakdowns. Disassembly of the device may be necessary to replace the battery, repair the display, clean up the dust or recover from a fall. However, improper actions can damage the plumes, loss of tightness or even complete failure of the gadget.
This article will help you take the Xiaomi A5 apart as safely as possible, even if you've never held an electronics screwdriver, and we'll detail every step from tool preparation to reassembling it, and point out the hidden pitfalls that most instructions don't mention, such as why you can't use metal mediators to tuck the lid or how to avoid a fingerprint scanner plume breaking.
The important thing is, if your Xiaomi A5 is still warranty, the disassembly will cancel it, in which case you should contact the service center. For everyone else, go ahead!
Preparation for disassembly: tools and security measures
Before you start, make sure you have everything you need. Not even one tool can turn a simple disassembly into a nightmare. For example, without a screen suction cup, you risk scratching the glass or breaking the latches, and without a plastic mediator, you risk damaging the body.
Here is the minimum set you will need:
- 🔧 Set of screwdrivers (cross-haul) PH00, flat 1.5 mm, five-pointed Y00 screw-tray SIM)
- 🧲 Suction cup (diameter 5-7 cm) for removing the display module
- 📱 Plastic mediators (2-3 units) or guitar mediators
- 🔥 Hair dryer or thermo-air station (for softening glue)
- 🧴 Isopropyl alcohol 90%+ (clean-up)
- 📦 Container for screws (so as not to lose small parts)
⚠️ Warning: Don't use metal tools to tweak the lid or screen! even a slight scratch on Xiaomi's aluminum body A5 can become a hotbed of corrosion, and damage to the plume of the display will turn into expensive repairs.
Also prepare the workplace:
- 🪑 Work at a table with good lighting (better to use a desk lamp).
- 🧹 Remove all unnecessary items – a lost screw inside the case can close the board.
- ⚡ Turn off your smartphone and completely drain the battery (up to 0%) before disassembling.
- 📸 Take a picture of each stage of disassembly – it will help with the reverse assembly.
Step 1: Removing the back cover
The back cover of the Xiaomi A5 is mounted on latches and glue, and the challenge is not to break the plastic latches that are located around the perimeter, and if you act rudely, the lid can crack or deform, and the latches can break.
Sequence of action:
- Heat the edge of the cover with a hair dryer (~60°C) for 1-2 minutes. This will soften the glue.
- Insert a plastic mediator into the gap between the lid and the case (start at the bottom edge where the USB-C connector is).
- Carefully conduct the mediator along the entire perimeter, gradually snapping the fixtures.
- When all the latches are free, remove the lid. If it's stuck, warm up again with a hair dryer.
⚠️ Attention: Don't pull the lid with force! There are plumes of antennas and cameras underneath.
After removing the cover, you will see:
- 🔋 Battery (stick to the body).
- 📷 Main camera module (fixed with screws).
- 📶 Antenna contacts (thin golden tracks).
- 🔊 Dynamic and vibrator (lower part).
☑️ Preparation for lid removal
Step 2: Shutting off the battery
Before any manipulation of the internal components, be sure to turn off the battery, which will prevent short circuits that could burn the motherboard. In the Xiaomi A5, the battery connector is located under a protective black film.
How to turn off the battery:
- Remove the black insulating film from the battery connector (it is glued, carefully attach it to the mediator).
- Take a plastic spatula and gently pull the plume up.
- Make sure the connector contacts are not closed (you can check with a multimeter).
In the Xiaomi A5, the Extremely battery plume is fragile, with a break in the battery pack requiring soldering or replacement of the entire power unit. If you feel resistance when you turn off, check again if there are any additional locks.
| Action. | Risk | How to avoid |
|---|---|---|
| Shutting off the battery without disconnecting the plume | Short circuit of the fee | Always turn off the battery first. |
| Use of metal tools | Damage to plumes or shell | Work only with plastic. |
| Strong heat wrinkle (>80°C) | Melting plastic parts | Keep the temperature 50 to 60°C |
| Loss of screws | Impossibility of assembly | Keep them in a container in groups. |
Step 3: Removing the motherboard
The Xiaomi A5 motherboard is mounted on 10 to 12 different sizes, so the key is not to mix them up when you build them back, or you might damage the thread or close the contacts, and we recommend that you place the screws in order on a piece of paper with notes.
Procedure:
- Unscrew all the screws, starting with the longest ones (usually near the USB-C connector).
- Carefully tuck the board with a plastic spatula, starting at the top edge (where the power connector is).
- Disconnect all plumes: 📱 Display plume (the widest). 🔍 Fingerprint scanner plume (thin, fragile!). 🔊 Dynamics and microphone plume.
Completely remove the board and put it on an antistatic surface.
⚠️ Note: Fingerprint scanner plume in Xiaomi A5 Sticked to the board with double-sided tape. Don't pull it by force, first gently tuck the tape with your nail or plastic spatula.
If the fee is not amenable, check:
- 🔍 Are there any unscrewed screws left (sometimes hidden under stickers).
- 🧲 Are there any plumes stuck to the back of the board (especially antennae).
- 🔌 Have you forgotten to turn off the battery connector.
What to do if the screw "slipped"?
Step 4: Replace the battery (if required)
The battery in the Xiaomi A5 is one of the most vulnerable places, and over time it swells up, loses capacity or refuses to hold charge, and it requires caution: Lithium polymer batteries can ignite if damaged.
Instructions for replacement:
- Unplug the old battery. To do this, put the isopropyl alcohol under the battery (it dissolves the glue). Carefully put it in a plastic spatula starting at the edge. Don't prick the battery, it can cause electrolyte leaks!
Remove the residues of glue from the case (you can use scotch or alcohol).
Install a new battery (be sure to check the compatibility model!).
Connect the plume and secure the battery with double-sided tape.
Tips for choosing a battery:
- 🔋 Buy only original batteries or certified analogues (e.g. from Patona or Baseus).
- 📏 Check the dimensions: the new battery should fit perfectly into the groove.
- 🔌 The capacity must match the original (in Xiaomi) A5 That's 3010 mAh).
1. Is the battery plume connected correctly?
2. whether there is damage to the contact board (clean them with alcohol).
3. whether the voltage of the new battery matches the original (must be 3.8–4.4V).-->
Step 5: Disassembly of the display module
Xiaomi A5 display is not only a screen, but also a touch layer, backlight and fingerprint scanner. When disassembling, it is easy to damage plumes or tear off flexible contacts. If you need to replace only glass (with cracks), you better give the module to a service for professional gluing.
If you need a complete replacement of the display:
- Heat the screen edge with a hair dryer (temperature ~70°C) for 2-3 minutes.
- With the help of a suction cup, carefully lift the display module.
- Take the mediator and walk around the perimeter, separate the glue: 📱 Upper part (there are the plumes of the front camera and the speaker). 🔍 Lower part (connector) USB-C and antennae).
Disconnect all the plumes from the board and remove the module.
When installing a new display:
- 🧹 Clean the landing site of old glue and dust.
- 🎨 Apply a new glue (for example, B-7000) thin-layer.
- 🔧 Carefully press the screen, avoiding bubbles.
⚠️ Warning: If your smartphone doesn't respond to touch after you replace the display, check: Is the touch train (it's wider than the screen plume) properly connected? Is there any damage to the flexible contacts? Is the new display compatible with your model (at Xiaomi) A5 module JDI NT36672A).
Build a smartphone: reverse order and testing
The Xiaomi A5 should be assembled in reverse order, but with a few nuances in mind:
- Before installing the board, check all plumes for damage.
- Screw the screws cross-curl to avoid distortions.
- After assembly, do not turn on the smartphone immediately - let the glue (if used) dry for 10-15 minutes.
Post-assembly testing:
- 🔋 Check charging (plug the cable and make sure the current is going).
- 📶 Make sure the antennas are working (catch the network).
- 🎤 Test the microphone and speaker (record a voice note).
- 📷 Take a photo on the front and main cameras.
- 🔍 Check the fingerprint scanner and touch screen.
If something's not working:
- 🔧 Recheck the connection of the plumes (especially the fingerprint scanner and display).
- 🔌 Make sure all screws are twisted (an unpatched screw can cause a circuit to occur).
- 📱 Reset the settings to factory (sometimes helps with software failures after disassembly).
1. Unconnected battery plume.
2. Closed contact board (check multimeter).
3. damaged display plume (if the screen is not lit, but there is vibration).-->