Xiaomi Redmi Note 5 has proven itself as a reliable device with excellent autonomy, but time does not spare lithium-polymer batteries. Over time, the capacity falls, the phone stops holding charge or turns off in the cold. At such moments, the owner faces the question of the need to replace the battery. Self-removal of the battery requires accuracy, knowledge of design and the presence of a minimum set of tools.
The process of disassembling this model has its own nuances related to the location of the plumes and the mounting of the rear cover. Wrong actions can damage the display or motherboard. In this article, we will discuss in detail how to remove the battery on the Xiaomi Redmi Note 5, what tools you need and what to pay special attention to, so as not to turn a simple repair into a purchase of a new gadget.
Before you start a physical intervention, you need to assess your strengths and risks. Replacing a battery is not just a pull-and-paste process, but a complex process that requires patience. If you are not sure about your skills with small electronics, you should contact a service center. However, if you are determined, follow our recommendations.
Preparation of the workplace and tools
The success of any electronic repair operation depends 90% on proper preparation. You will need not only a new battery, but also specialized tools. Don't try to pick the case with a knife or needle - this is guaranteed to damage the elements of the device.
- 🔧 Set of screwdrivers (necessarily cross) PH000 and PH00).
- 🛠 Plastic blades and mediators for opening the body.
- 🌡 A hair dryer or heating platform for softening glue.
- 🧲 Magnetic mat or screw container.
- 💳 Plastic card or thin scraper.
Organize your workspace so that nothing gets in the way. The lights are bright and directional so you can see the small screws and connectors. Prepare a place to fold the screws in advance, because Xiaomi uses screws of different lengths, and mixing them up means damage the board or not build the case to the end.
The important step is to turn off the device, so before any work begins, the phone must be completely turned off, not just put into sleep mode, but turned off through the menu or hold the power button, and this will prevent short circuits when the battery plume is disconnected.
Disassembly of the back cover Xiaomi Redmi Note 5
The Redmi Note 5 design involves a plastic back panel that attaches to screws and adhesives. Unlike glass models, plastic is less fragile, but it is also easy to damage with a sharp object. SIM-It's a must-do step, without which you can't take the lid off.
Once you've removed the tray, flip the phone over and find the two screws at the bottom of the case, on the sides of the charging socket. They're hidden under decorative plugs or in the recesses. Carefully twist them out with a PH000 screwdriver. Now the case is only held on glue and internal latches.
⚠️ Warning: Don't try to bend the lid with force. The glue becomes very strong when exposed to time, and a sharp movement can break the plastic guides or damage the tail of the side button.
To soften the adhesive, heat the perimeter of the case. Use a hair dryer at about 80-90 degrees, and warm the edges for 2-3 minutes. Don't hold the hair dryer at one point for too long so as not to overheat the display on the back. After heating, insert the plastic blade into the junction between the frame and the cover and guide it around the perimeter, gradually snapping the locks.
☑️ Autopsy tools
Dismantling internal components and protection of boards
When you remove the back cover, you'll have access to the insides of your smartphone, but you can't pull the battery right away, and it's covered by a plastic frame that also protects the main parts from dust and mechanical stress, and it's screwed with a lot of screws of different calibers.
Take a close look at the perimeter of the plastic frame, and you'll see screws all over the circuit, and around the main camera module and flash, some screws may be hidden under stickers or in the depth of the holes, use tweezers to carefully extract all the fasteners, and it's recommended that you take a photo of each step to remember which screw was taken from where.
Pay special attention to the plume connecting the bottom board (with the charging connector) and the motherboard. It runs under a plastic frame. Before completely removing the frame, you need to carefully snap the locking plugs of the connectors and disconnect the plume. It is also worth turning off the main camera plume and flashes if they interfere with access to the battery.
| Component | Type of attachment | Tool. | Risk of damage |
|---|---|---|---|
| Back cover. | Glue + screws | Fen, spatula | Plastic cracks |
| Plastic frame | Screws (many) | Screwdriver PH000 | Carving failure |
| plumes | Connectors | Tweezers, mediator | Contact break |
| Battery | Adhesive tape | Fryer, sucker. | Battery puncture |
Trouble with the screws
Removal of the old battery
The most important thing is to remove the old battery. In the Xiaomi Redmi Note 5, the battery is glued to the body with double-sided tape. Over time, the glue dries and becomes very rigid, so the battery sits dead. The main danger here is to damage the battery shell. A puncture of the lithium polymer battery will lead to instant ignition or explosion.
Before you try to retrieve, be sure to disconnect the battery connector from the motherboard. Even if the phone is turned off, there is residual voltage on the board. Disabling the plume is the only way to ensure complete safety of electronics when working with adhesives. Use a plastic mediator to snap the connector.
To separate the battery, you'll need to heat up again. Carefully warm up the area under the battery through the open space (without removing the protective films from the battery itself, if any). The temperature should not exceed 60-70 degrees directly on the battery. After heating, try using a suction cup or a thin plastic blade to tamper with the edge of the battery.
⚠️ Warning: Never use metal objects (knives, needles, tweezers) to tweez the battery.The metal will easily penetrate the thin shell of the cell, which will cause a short circuit and fire.
If the battery fails, use the thread method. Take a thin but strong thread (like a dental floss or fishing line) and carefully carry it under the battery, making sawing movements, which allows you to cut the adhesive layer without deforming the battery itself.
Installation of a new battery and assembly
Once the old element has been successfully removed, you need to prepare a place for the new one. Carefully clear the seat of the residue of the old glue. Use isopropyl alcohol or a special solvent for the glue, but make sure that the liquid does not get on the connectors or into the speaker. The surface should be perfectly smooth and fat-free.
The new battery for the Redmi Note 5 usually comes with adhesive strips already applied. If none are available, use a special double-sided electronics tape (B-7000 adhesives are better not to use for the battery itself, as it can not be removed later). Stick the battery tightly pressed over the entire area. Connect the plume to the characteristic click.
Before you final build, do a primary check. Without screwing the frame and the cover, plug the display plume (if it's disconnected) and press the switch. If the phone comes alive and shows charging, you did it right. If the screen doesn't catch fire, double check the plug connection and connector density.
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First Charge Cycles: After the battery is replaced, it is recommended to conduct 2-3 full charge-discharge cycles (0% to 100%) without interruptions, which will help the power controller to calibrate and correctly display the charge level.
Typical errors and security measures
Repairing smartphones with your own hands often comes with errors that can be costly. One of the most common problems is damage to the display plume when you unscrew the frame, and the display in this model is glued to the frame, and inexperienced craftsmen often punch the matrix with a screwdriver, relying on it when twisting the screws.
Another mistake is using the wrong screws. In Xiaomi, frame screws and motherboard screws can have the same threads, but different lengths. If you screw a long screw into a short hole, it will rest in the board from the bottom and squeeze the contacts or break the textolite. Always check the length of the screws with the original holes.
- 🚫 Don't ignore the bloating of the battery. If the old battery is swelling, don't press it or try to pierce it.
- 🚫 Do not use ordinary household glue (superglue, moment) to lock the battery.Adhesive vapors can damage camera optics and sensors.
- 🚫 Do not leave your phone unattended to charge immediately after you have been replaced.
⚠️ Warning: If you smell chemicals or notice smoke, stop working immediately, step away from the device and ensure that the room is aired.
Safety and attention to detail are key to a successful repair. If you are in doubt about any stage, you should stop and consult with a specialist. A properly replaced battery will return your Redmi Note 5 to its former autonomy and speed.
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The quality of a new battery is more important than the speed of replacement, and use only original parts or proven analogues from well-known brands (Nohon, Desayi) to avoid re-repair in a month.