How to carefully get the battery from Xiaomi Redmi 6: disassembly of the case and battery extraction

Removing the battery from the Xiaomi Redmi 6 is a challenge that owners face when replacing the battery, repairing after a fall or getting moisture. Unlike flagship models with non-removable rear covers, the Redmi 6 has a semi-shatterable design, but the process requires caution: improper actions can damage the plumes, connectors or the battery itself. This instruction will help to disassemble the device without risking internal components, even if you have no experience repairing smartphones.

It's important to understand that the Xiaomi Redmi 6 (codenamed cereus) has a 3,000 mAh lithium polymer battery that is soldered to the motherboard with thin contacts. Unlike older removable battery models, you'll have to work with the adhesive connection and disconnect the power plume. We'll tell you what tools you need, how to avoid short circuits, and what to do if the battery is swollen or deformed.

Preparation for disassembly: tools and security measures

Before you start removing the battery, prepare the workplace and the necessary tools. Disassembling a smartphone without specialized equipment can damage the board or display, so do not neglect the following points:

• 🔧 Plastic mediators or shoulder blades (2-3 pieces) - for separation of the back cover and the battery without scratches.
• 🔨 The screwdriver. PH00 — for twisting screws in the lower part of the body.
• 🧲 Magnetic mat or container - so as not to lose small parts (screws, latches).
• 🔥 Hair dryer or thermo-air station - for softening the glue (temperature not higher than 60)°C!).
• 🧤 Gloves and safety glasses – if the battery is swollen or there is a risk of leakage of the electrolyte.

If you've never taken a smartphone apart, practice on an unnecessary device or watch Redmi 6 video disassembly on YouTube. Pay attention to the location of the plumes: they're easily damaged when you're not moving sloppy. Never use metal tools to tamper with the battery - this can cause a short circuit.

⚠️ Warning: If the battery is swollen or shows signs of corrosion, do not try to remove it yourself! In such cases, the risk of fire or explosion increases significantly.

Step 1: Turn off the phone and remove the back cover

The first step is to completely shut down the Xiaomi Redmi 6 and remove the back panel. Even if the device does not respond to the power button, make sure it is discharged (leave it for 12-24 hours without charging), this will eliminate the risk of short circuit when working with the battery.

Follow the instructions:

1. Place the phone on a flat surface with the screen down.
2. Heat the back cover around the perimeter with a hair dryer for 1-2 minutes (hold it 10 cm away!) This will soften the glue.
3. Insert a plastic mediator into the gap between the lid and the case at the charging connector and carefully lead along the edge.
4. As soon as the lid begins to move away, do not pull it sharply - antenna contacts pass under it.

If the lid doesn't lend itself, reheat the problem areas. Don't use excessive force: on Redmi 6, the back panel is not only attached to glue, but also to plastic latches that are easy to break.

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Step 2: Disconnect the battery plume

When you take the back cover off, you'll see the battery locked in a black film, and don't try to pull it out right away, you'll need to turn off the power on the motherboard first.

1. Find the white battery connector (located next to the camera).
2. Carefully put a plastic spatula on it, pulling it upwards. It should detach without effort.
3. Check the absence of voltage can be multimeter (optional).

If the connector fails, don't force it -- maybe it's fixed with extra glue -- in which case, warm up the area with a hairdryer (maximum 40°C) and try again.

⚠️ Warning: After the plume is disconnected, do not touch the battery contacts with metal objects. Even a discharged battery can cause a spark when you close!

Step 3: Removing the battery from the housing

The battery in Xiaomi Redmi 6 is glued to the body with double-sided tape, and it takes patience and a plastic tool to remove it.

1. Put the edge of the battery on a plastic blade at the charging connector.
2. Slowly drive the tool under the battery, separating the glue. If resistance is strong, warm up the area with a hairdryer (no more than 50 ° C!).
3. Don’t try to pull the battery out with a jerk – this can tear the adhesive base or damage the flexible plumes underneath.

If the battery is swelling, it becomes more difficult to remove it.

• 🛠️ Use a special glue solvent (e.g. Isopropyl Alcohol 99%) to ease adhesion.
• 🧊 Refrigerate your battery in the freezer for 10-15 minutes (wrap it in a bag!) to reduce the risk of fire.
• 🚨 Work in a well-ventilated room - electrolyte vapors are toxic.

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If the battery is stuck to the body, don't try to tear it off by force. Put the phone in a sealed solvent bag for 10-15 minutes, this will help to safely separate the glue.

Step 4: Check the status of the battery and the housing

After removing the battery, examine it for:

• 🔋 Bloating – if the battery case is deformed, it cannot be reused.
• 💧 Corrosion traces – green or white plaque on the contacts indicates electrolyte leakage.
• 🔌 Contact damage – bent or blackened terminals require replacement of the connector.

Also check the phone body:

• 📱 Integrity of plumes – especially in the speaker and camera.
• 🧲 The presence of metal chips - it can cause a closure during assembly.
• 🔍 The condition of the glue base - if the residues of the tape interfere, remove them with alcohol.

If you are planning to install a new battery, make sure that the capacity and model are the same as the original one (BM43 or BM44 for Redmi 6).Using uncertified batteries can cause overheating or rapid wear.

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Never install a battery with visible damage! even a slight bloating can cause a fire when charging.

Frequent Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when disassembling Xiaomi Redmi 6, here are the most common of them and ways to prevent them:

• 🔧 Use of metal tools → Solution: only work with plastic or wooden blades.
• 🔥 Battery overheating with a hairdryer → Solution: heat in short intervals (maximum 1 minute) at minimum power.
• 📵 The battery's undisengaged plume → Solution: Always check for disconnection of the connector.
• 🧹 Ignoring glue residue → The new battery will fit loosely. Solution: clean the case with alcohol or scraper.

Another common problem is that the flexible plume of the display is damaged when the lid is not removed carefully, and if the phone doesn't turn on or the screen doesn't respond to touch after assembly, it's likely that the plume has detached from the connector, which would require a microscope and a soldering station to repair.

Installation of a new battery and assembly of the phone

If you successfully retrieve an old battery, it's time to install a new one.

1. Remove the protective film from the new battery (if any).
2. Stick double-sided tape onto the phone body (use the original or analogue with the same thickness).
3. Carefully put the battery in place, aligning with the contacts.
4. Connect the power plume to the motherboard (a click should be heard).
5. Make sure that no plumes are under the battery.

When assembling the shell:

• 🔩 Twisting the screws cross-cross to avoid distortions.
• 📶 Check that the antenna contacts of the back cover coincide with the connectors on the board.
• 🔋 Do not turn on the phone immediately after assembly - let the glue grab (10-15 minutes).

After activation, check:

• 🔋 Charge level (must be displayed correctly).
• 📊 Battery temperature in Settings → Battery (must not exceed 40)°C when charging).
• ⚡ Charging speed (use the original Xiaomi adapter on the 5V/2A).

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After you change the battery, calibrate the phone completely, then charge it to 100% without interruption, and this will help the controller determine the capacity correctly.

FAQ: Frequent questions about battery replacement in Xiaomi Redmi 6