How to get your own battery from Xiaomi Redmi Note 5: instructions with photos and warnings

Removing the battery from the Xiaomi Redmi Note 5 is a challenge that owners face when replacing the battery, repairing after a fall or eliminating the effects of bloating. Unlike models with a removable back cover (for example, the Redmi 4A), here the battery is glued to the body, and access to it is blocked by many plumes and mounts. Disassembly errors can damage flexible cables, break contacts or even burn the lithium-ion battery.

This manual will work for all Redmi Note 5 versions (including the Redmi Note 5 Pro and Redmi Note 5A) because they are identical in design. We will discuss three extraction methods: standard (using a mediator), alternative (with heating) and emergency (when the battery is bloated), and you will also learn what tools you need, how to avoid typical errors and what to do if the battery is stuck to the case.

Preparation: security tools and measures

Before disassembling the Xiaomi Redmi Note 5, make sure you have everything you need. Lacking at least one tool can make the process more complicated or break. Here's the full list:

• 🔧 Plastic mediator (or guitar mediator) – for separation of the body without scratches.
• 🔥 Hair dryer or thermo-air station - for softening the glue (temperature not higher than 60)°C!).
• ⚙️ Set of screwdrivers (cross-haul) PH00 and flat 1.5 mm) for screws under the back cover.
• 🧲 Magnetic mat or container – to avoid losing small details.
• 🩹 Gloves and safety glasses - when working with a bloated battery.
• 🔋 New battery (if you are planning a replacement) – original art. MB-J10 or equivalent with a capacity of 4000 mAh.

Important: Redmi Note 5 battery is glued to the body with 3M double-sided tape, which becomes elastic when heated. Don't use metal tools to tamper with - they can puncture the battery!

⚠️ Warning: If the battery is swelling (the case cover is raised), do not heat it or pierce it! Lithium-ion batteries can ignite if damaged.

Step 1: Removing the back cover

The Redmi Note 5 back panel is mounted on latches and glue, and you can use the algorithm to remove it.

1. Turn off your smartphone and remove the tray for SIM-cards (use a paper clip or tool from the kit).
2. Heat the edge of the body with a hair dryer (especially near the charging connector) for 1-2 minutes. Keep the hair dryer at a distance of 5-7 cm.
3. Insert the mediator into the gap between the cover and the case at the USB-Type C connector and gently lead along the perimeter.
4. When the latches are snapped, lift the lid, starting at the bottom edge. Don't make any effort -- if the lid doesn't lend itself, warm up the glue again.

Under the lid, you'll see 12 screws of different lengths, and remember where they are, because when you build them, it's important to screw each screw into its place, or you might have problems with the antenna or the camera.

Smartphone offline|Tray extracted SIM-map|Heated edges of the body with a hairdryer|A mediator and screwdrivers at hand.-->

Step 2: Disconnect the plumes and batteries

Once the lid is removed, you need to disconnect all the plumes to avoid short circuit.

1. Unscrew 4 screws fixing the metal plate above the battery (they are marked with red circles in the photo below).
2. Carefully slap the plate and put it aside.
3. Disconnect the battery connector with a flat screwdriver, and then you pull the black lock up, and then you pull the plume out.

Now turn off the other plumes in this order:

1. The display plume (the widest, located on the right).
2. Touch glass plume (thin, next to the display).
3. Main camera plume (in upper left corner).
4. The fingerprint scanner plume (if it is in your modification).

⚠️ Warning: Don't pull the plumes behind the wires - just the plastic connectors! Damage to the contacts can lead to loss of tactile response of the screen or a camera that is not working.

Step 3: Removing the battery

Now, the hardest part is taking the battery off, and the Redmi Note 5 has it glued to the body, so it takes patience and care. There are two ways to do this.

Method 1: Using a mediator and heating (recommended)

This method is suitable for most cases where the battery is not bloated or deformed.

1. Once again warm up the body with a hair dryer (temperature 50-60 ° C) for 2-3 minutes, paying attention to the edges of the battery.
2. Put the mediator in the edge of the battery at the charging socket, and try to get the mediator as deep as possible.
3. Carefully drive the mediator along the battery, separating it from the body, and if you feel resistance, stop and warm up the area again.
4. When the battery is 2/3 apart, take it by the free edge and slowly pull upwards, continuing to separate the glue with the mediator.

Method 2: Using isopropyl alcohol (for a “stiff” battery)

If the battery doesn't respond even after heating, you can use 90% isopropyl alcohol, which dissolves the glue without damaging the electronics.

1. Apply a few drops of alcohol around the perimeter of the battery (not on a charge!).
2. Wait 5-7 minutes until the glue softens.
3. Repeat the procedure with the mediator as in Method 1.

💡

If there is no isopropyl alcohol at hand, you can use acetone for nails, but you need to apply it point-by-point and avoid hitting the board - it can damage plastic parts.

Emergency method: if the battery is blown up

A bloated battery is dangerous, it can burst, emitting toxic gases, or it can ignite.

1. Don't heat the battery! Take the smartphone out in the open air or in a well-ventilated room.
2. Put on gloves and goggles. Put a cloth under the body so you don't scratch the table.
3. Carefully put a plastic blade on the bloated part of the battery, and if it doesn't respond, don't make any effort, you better contact the service.
4. Once the battery has separated, place it in a non-combustible container (such as a metal can of sand) and dispose of it according to local regulations.

⚠️ Warning: If you see green or white oxidation on the board when you remove the bloated battery, don't turn on your smartphone! This is a sign of short circuit.

Installation of a new battery

If you have removed the battery for replacement, when installing a new one, follow these rules:

• 🔄 Make sure the new battery is the same capacity (4,000 mAh) and supports fast charging (if it’s important for your model).
• 🧴 Apply a thin layer of bilateral scotch 3M or special adhesive for batteries on the body (not on the battery!).
• 🔌 Connect the battery connector to the board last when all the plumes are already connected.
• 🔧 Twisting the screws cross-cross to avoid skewed cover.

After assembly, turn on the smartphone and check:

• Charging (plug the charger and make sure the current is running).
• Screen operation (no broken pixels, touchscreen responds to touch).
• Camera (take a test shot).
• Fingerprint sensor (if any).

1. Correct connection of the battery plume (it should click when fixing).

2. the presence of a short circuit on the board (multimeter will help).

3. condition of the new battery - it may be discharged "to zero" and requires pre-charge with an external device.-->

Frequent Mistakes and How to Avoid Them

Even experienced craftsmen sometimes make mistakes when disassembling the Redmi Note 5, and here are the most common ones and ways to prevent them:

Another common problem is that the smartphone doesn't turn on after assembly, and 90 percent of the time, it's because of:

• 🔌 Unconnected plume of the display or battery.
• 🔋 A new battery discharged to zero (you need to charge an external RAM).
• 🔧 A forgotten screw under the board (check the magnetic mat).

FAQ: Answers to Frequent Questions