How to disassemble Xiaomi wireless charging: a detailed guide with photos and tips

Why you may need to disassemble Xiaomi wireless charging

Xiaomi's wireless chargers are some of the most popular on the market for their combination of price, quality and functionality. However, even the most reliable equipment sometimes fails: stops charging, warms, makes extraneous sounds or simply does not turn on. Most of the time, the causes lie inside the case, which can be damaged contacts, bloated capacitors, oxidized circuit boards or mechanical damage after a fall.

An official service center is not always advisable: the cost of diagnosis and repair can exceed the cost of a new charge, especially if we are talking about low-end models like the Mi Wireless Charging Pad or Mi Air Charge. Disassembly with your own hands allows you to save money, but requires accuracy. In this article, we will discuss in detail the process, tools, typical problems and give tips on how to avoid errors.

Important: if your charging is still warranty, the disassembly will cancel it, in which case it is better to contact the Xiaomi service center or the seller first.

What Xiaomi models can be disassembled independently

Not all Xiaomi wireless charging is equally easy to understand, the design depends on the model, year of release and even the batch. Below is a table with popular devices and their features:

If your model is not in the table, focus on the type of attachment: most Xiaomi charges are assembled on latches, glue or a combination of both. screws are less common and usually hidden under stickers or legs.

Preparation: security tools and measures

Before disassembling, make sure you have everything you need, and using the wrong tools is the main cause of damage to the board or the case.

• 🔧 Plastic mediators or shoulder blades (to separate latches without scratches).
• 🔨 Screwdriver cross (PH0 or PH00) — for screws, if any.
• 🔥 Hair dryer or thermo-air station (for softening glue).
• 🧴 Isopropyl alcohol (90%+) — clean-up.
• 📸 Smartphone for photography (to capture the location of parts).

Also prepare your workspace: a table with good lighting, an antistatic mat (if any) and screw/part containers. Never disassemble charging on a carpet or sofa - static electricity can damage chips and small parts are easy to lose.

⚠️ Warning: If the charge has been in contact with water or moisture, allow it to dry for at least 48 hours in a dry place before disassembly!

Step-by-step: how to disassemble Xiaomi charging

Consider a universal algorithm for example Mi Wireless Charging Pad 20W. For other models, the steps may differ slightly.

Step 1: Removal of the upper cover

On most Xiaomi chargers, the top of the case is mounted on the latches to remove it:

1. Place the mediator in the gap between the top and bottom of the housing (usually on the side where there are no ports).
2. Carefully drive the mediator along the perimeter, alternately flicking the mounts. Don't force it, because if the lid doesn't lend itself, there are hidden screws or glue.
3. If you hear a characteristic click, the latch is open. Repeat for all sides.

If the cover is glued, warm it up with a hair dryer (temperature not higher than 80 ° C) for 1-2 minutes, then try again with the mediator.

Step 2: Inspection of the insides

After removing the cover, you will see:

• 📱 Printed circuit board with chips and capacitors.
• 🌀 Coil of wireless charging (round element with wires).
• 🔌 Power connector (if charging with cable).

Take a picture of all the parts and wires, and that'll help with the reverse assembly.

Step 3: Diagnostics of malfunctions

Check the fee for the subject:

• 🔥 Darkened or bloated capacitors (a sign of overheating).
• 💥 Oxidized contacts (green coating).
• 🔌 Folded wires (especially at the coil).

If visually everything is fine, check the voltage at key points with a multimeter (if you have experience).

• The voltage at the inlet of the board (should correspond to the declared, for example, 5V/2A).
• Voltage at the outlet of the coil (usually 5–9V depending on the model).

⚠️ Warning: Don't touch the board with your bare hands while under voltage! Use isolated probes and work with one hand to avoid electric shock.

💡

If the board has white coating (oxidation), clean it with a cotton swab dipped in isopropyl alcohol. Do not use acetone or other aggressive solvents - they can damage the tracks!

Typical malfunctions and how to fix them

In 80% of cases, Xiaomi wireless charging stops working for several reasons.

1. Damaged coil contacts

Symptoms: Charging doesn’t define the phone or charges intermittently.

Decision:

• Check the soldered coils to the board. If they fall off, solder them again.
• Clean the contacts with alcohol (if oxidized).
• Make sure the coil is not offset relative to the housing (this affects charging efficiency).

2. Bloated capacitors

Symptoms: charging warms, squeaks, does not turn on.

Decision:

• Bloated capacitors should be replaced with new ones with the same parameters (capacity, voltage).
• If there is no soldering experience, it is better to contact the master - the wrong replacement can damage the fee.

3. Nutrition problems

Symptoms: charging is not turned on, the indicator does not burn.

Decision:

• Check the cable and power supply (try the workers knowingly).
• Measure the voltage at the board's input. If it's not there, it's a problem with the connector or the fuse.
• Check the safety (if any) and it may be overblown.

Charging assembly after repair

Collecting the charge back is often harder than disassembling.

1. Make sure all wires are connected to the same connectors as before disassembly (use photos!).
2. If the case was attached to glue, apply a new thin layer of thermal glue or bilateral tape around the perimeter.
3. Close the lid carefully so that the latches are not damaged. Start with the side opposite the power connector.
4. After assembly, check the charging with the phone – it should identify the device and start charging without heating.

If the charging does not work after assembly:

• 🔍 Check if you have forgotten to connect a wire.
• 🔌 Make sure the coil contacts are not closed on the body.
• 📏 Check if the board has shifted inside the case (this can block the latches).

💡

If the charger warms up more than usual after repair, turn it off immediately! Overheating may indicate a short circuit or improper assembly.

When disassembly is inappropriate

Not all breakdowns can be repaired at home.

• 💀 The chips burned on the board (blackened, melted).
• 🔧 Replacement of the coil is required (it is usually soldered to the board and difficult to replace).
• 💦 The charge was flooded with liquid and corrosion damaged the tracks.
• 🔋 The battery (in models such as Mi Power Bank Wireless) swelled.

You should also not disassemble the charger if it:

• The warranty (disassembly cancels it).
• It is cheaper than repair (for example, budget models up to 1000 rubles).
• It has a complex design (for example, Mi Air Charge with antennas).

In such cases, it is easier to buy a new charger or give the old one to a specialized service.

FAQ: Frequent questions about the dismantling of wireless charging Xiaomi