How to remove the battery on Xiaomi Mi5: disassembly, tools and precautions

Xiaomi Mi5 is the legendary smartphone, Released in 2016, which is still used by many users. However, as you age, the battery loses capacity, swells or needs to be replaced. If you notice that the battery is quickly discharged, the phone spontaneously turns off or the body deformed, it's time to think about replacing it.

Removing the battery from the Mi5 is not an easy task. Unlike modern models with removable rear covers, here the battery is soldered into the body and glued to the chassis. Disassembly errors can lead to damage to the plumes, rupture of flexible cables or even short circuit. In this article, we will discuss the entire process from tool preparation to final assembly, and also explain how to avoid typical errors.

Before you start, evaluate your strength. If you've never taken a smartphone apart, you'd better go to a service center. But if you're confident in your skills, follow our instructions Step-by-step.

Preparation for disassembly: tools and security measures

To remove the Xiaomi Mi5 battery, you need a specialized tool, and don't try to do it at hand, it can damage the body or internal components.

• 🔧 Plastic blades (2-3 (a) - for the careful liding and disconnection of the plumes.
• 🔨 Thin screwdriver cross (PH00) — screw-twisting.
• 🧲 Magnetic mat or container – to avoid losing small details.
• 🔥 Dryer or thermo-air station - for softening the glue (temperature 60-80)°C).
• 🧴 Isopropyl alcohol (90%+) — glue-cleaner.
• 🔋 New battery (if you are planning to replace) – check compatibility with the model Mi5.
• 📱 Screen suction cup – will help separate the back cover.

So, you have to pay special attention to safety, because a battery is a high voltage source, and if it's damaged, it can cause a fire or an explosion. Here are the key rules:

• ⚡ Work on a non-conductive surface (wooden table, rubber mat).
• 🚫 Do not use metal tools to tamper with batteries – only plastic or wooden sticks.
• 🔌 Turn off your smartphone completely and wait until it cools down if it was in the works.
• 🧤 Wear protective gloves – Lithium-ion batteries contain caustic chemicals.

⚠️ Attention, if the battery is swelled or deformed, don't try to puncture or bend it, it can cause instantaneous ignition, and then you'd better trust the replacement to the professionals.

Before starting the disassembly, back up your data. Even if you're an experienced wizard, there's always a risk of damage to the motherboard. Use the Mi Cloud or connect your smartphone to your PC to save photos, contacts and apps.

Step 1: Removing the back cover

The rear panel of Xiaomi Mi5 is mounted on latches and glue. To remove it, you will need a thermal air station or a hairdryer. Heat the edges of the case around the perimeter for 2-3 minutes, holding the nozzle at a distance of 5-7 cm. The temperature should not be above 80 ° C, so as not to damage the screen or plastic parts.

After heating, attach the suction cup to the bottom of the screen (near the USB-Type C connector) and gently pull up. At the same time, snag the lid with a plastic blade as you move around. The latches should start snapping with a characteristic sound. Don't put too much effort -- if the lid doesn't lend itself, warm it up again.

Once the latches open, remove the lid and put it aside. Underneath it, you'll see:

• 🔋 Battery with connected plume.
• 📱 Motherboard closed with metal screen.
• 📷 Camera module and antenna contacts.

⚠️ Attention! Mi5 The fingerprint scanner plume is very fragile. If you damage it, Touch ID It will stop working and it will cost a lot to replace.

Now you have to disconnect the battery from the motherboard.

1. Find the battery connector (usually marked in red or orange).
2. Carefully attach the connector lock with a plastic blade and disconnect the plume.
3. Check with a multimeter that there is no voltage on the contacts of the battery (should be 0 V).

The battery plume from the motherboard is disconnected|Verified the absence of voltage multimeter|The tools are ready and at hand.|Workplace freed from foreign objects-->

Step 2: Unplug the battery from the body

The battery in Xiaomi Mi5 is glued to the chassis with double-sided tape. To remove it, you need to soften the glue. To do this, again use a hairdryer: warm the battery on the back side (via the motherboard) for 1-2 minutes. The temperature should not exceed 60 ° C, otherwise there is a risk of damage to the chips.

After heating, gently slap the battery with a plastic blade at any angle. Don't try to tear it off right away, the glue can be very strong. Move the blade gradually, separating the battery millimeter by millimeter. If you feel resistance, warm up the problem area again.

During the process of peeling off, you may encounter the following difficulties:

If the battery is swelling, it should not be bent or pierced. In such cases, it is better to use a special metal screen to protect against fragments. After removal, place the old battery in a sealed container and hand it over for disposal - throw it in ordinary garbage is forbidden!

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If the glue is too strong, try putting your smartphone in the freezer for 10 to 15 minutes, and the cold will make the glue more brittle, and the battery will move away more easily, but don't overdo it, the condensate can damage the board.

Step 3: Installation of a new battery

Before installing the new battery, clear the seat of glue residues. Use isopropyl alcohol and a lilaless wipe. Make sure the contacts are not oxidized - clean them carefully with a swallow or alcohol if necessary.

The new battery must be original or certified for the Xiaomi Mi5. Cheap analogues can not only fail quickly, but also cause fire. Check the label: the original battery must be indicated BH41 or BH42 (depending on the modification).

Installation process:

1. Remove the protective film from the adhesive layer on the new battery (if any).
2. Carefully place the battery on the landing site, combining contacts with the connector.
3. Press it evenly over the entire surface so that the glue is grasped.
4. Connect the plume to the motherboard and fix the connector.

After installation, check the performance:

• 🔌 Connect the charger and make sure that charging is underway.
• 📱 Turn on your smartphone and check the charge level in Settings → Battery.
• 🔋 Run a battery test using the AccuBattery app (available on Google Play).

⚠️ Attention! If the battery is not charging after the replacement or the smartphone does not turn on, check: Correct connection of the plume (possibly not fixed), integrity of contacts on the board (whether there is damage after disassembly), compatibility of the new battery with your model Mi5.

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Even the original battery requires a "rock-up" - the first 3-5 cycles of charging/discharge can show unstable results.

Step 4: Build a Smartphone

Assembling Xiaomi Mi5 after the battery replacement should be in reverse order. Start by checking all the plumes and connectors:

• 📸 Make sure the camera plume is tightly connected.
• 👆 Check the fingerprint scanner connector.
• 🔊 Don’t forget the speaker and microphone.

Secure the motherboard with screws (don't drag them!) Make sure all antenna contacts are in place - otherwise there may be problems with Wi-Fi or LTE. Then gently install the back cover starting at the top (where the camera is located).

After assembly, turn on the smartphone and perform tests:

1. Check the touch screen for responsiveness.
2. Test the camera (main and front).
3. Make sure the fingerprint scanner is working.
4. Check the sound in the speaker and microphone.

If everything works correctly, you can start to use it on a daily basis, and if you have artifacts on the screen, if the camera is not working or if the network is not working, you probably have a plume or contact damaged during the dismantling, and then you need to re-diagnose.

Common Mistakes and How to Avoid Them

Even experienced tycoons sometimes make mistakes when replacing a battery, and here are the most common ones and ways to prevent them:

• 🔧 Tug-up screws can cause cracks in the board or the case. Solution: use a screwdriver with a torque limiter.
• 🔥 Battery overheating is a risk of ignition.Solution: Don't exceed the heating temperature above 80°C.
• 📱 Damage to the screen plume leads to a broken display. Solution: only use plastic tools to lift the lid.
• 🔋 Using a non-original battery can cause bloating or rapid wear and tear.Solution: Buy batteries only from trusted suppliers.

Another common problem is that the battery is incompletely peeled off, and if you force it off, you can break the metal coating, which will short circuit, always warm the glue evenly, and use isopropyl alcohol to dissolve the residue.

If the battery is discharged too quickly after replacement, check:

• 🔌 The quality of the connector contact (it may not fit tightly).
• 📉 Energy Configuration (Settings) → Battery → Energy saving regime).
• 🔄 Battery calibration (discharge your smartphone to 0% and charge to 100% without interruptions).

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If a new battery is warming up while charging, it may indicate a malfunctioning power controller on the motherboard, which requires a diagnosis at the service center.

Recycling of an old battery

Lithium-ion batteries can't be thrown away in the trash, they contain toxic substances and can spontaneously ignite if damaged, most cities have reception points for recycling batteries, and here's how to get rid of an old battery:

1. Place it in a sealed bag or container.
2. If the battery is swelling, do not deform it - this can lead to leakage of the electrolyte.
3. Take them to a specialised reception point (their addresses can be found on the website of the Xiaomi Ecosystem or local environmental services).

Some service centers accept old batteries for free when buying new ones.

If you can't find a recycling site, temporarily store the battery in a cool place, away from direct sunlight and heat sources. Don't leave it near flammable materials.

FAQ: Frequent questions about Xiaomi Mi5 battery replacement