Xiaomi Redmi Note 5 has proven to be a reliable device, but over time, even the highest quality equipment requires maintenance. Most often, users are faced with the need to replace the battery that has lost capacity, or restore the broken rear window. The process of disassembling this device has its own technical nuances, which is important to consider so as not to damage fragile plumes and plastic mounts.
Before you start dismantling, you should be aware that opening the case will automatically void the official warranty. If your gadget is still in warranty service, it is wise to contact an authorized service center. However, if the warranty has already expired or the device has suffered mechanical damage, self-repair can be an economically viable solution.
The success of the operation depends on the quality of the workspace and the availability of specialized tools. You should not rely on random objects, as this increases the risk of slipping and damage to the internal components. In this article, we will discuss in detail how to safely remove the back panel, what tools will be required and what to pay special attention to.
Tools and workplace preparation required
Quality preparation is the foundation of a successful repair. With the Redmi Note 5, you need a minimal but specific toolkit that avoids scratches and chips. The main enemy in disassembling is the glue that fixes the panel, so heating it is a must.
You're going to need a heat source, which could be a professional thermophene, a household hair dryer with a narrow nozzle, or even an electric heating pad, and the key is to keep the perimeter of the device evenly warmed to a temperature around the temperature. 80-90 Also an indispensable helper will be a suction cup, which will help create the initial gap between the glass and the frame.
Mechanical action will require thin plastic mediators or special blades for opening. Metal tools are highly undesirable, as they can easily damage the valves or scratch the inner frame, also prepare tweezers with thin tips and a Phillips screwdriver of the appropriate size.
- 🔥 Thermophen or hair dryer to soften the adhesive layer
- 💳 Plastic cards or mediators for snapping latches
- 🔧 Cross screwdriver (usually size) PH00 or PH000)
- 📏 Suction cup for careful pulling of glass
Organize the space so that all tools are at hand and the surface is clean and smooth. It is recommended to use a magnetic mat or containers with cells so that the screws do not get lost. Small parts, such as screws of different lengths, are easy to confuse, which can lead to problems with reverse assembly.
⚠️ Warning: Never heat the device to a point where it cannot be held. Excessive heating can damage the display by detaching the polarization film, or disable the battery.
The process of heating and separation of the rear panel
The first step in the Xiaomi Redmi Note 5 disassembly procedure is to remove the tray. SIM-This is a mandatory action that removes the internal stress in the housing structure and prevents the plumes from being transmitted during heating.
Turn on the dryer or the thermophene and direct the hot air flow to the back cover. Move the device or heat source so that the heating is uniform throughout the perimeter. Pay special attention to the corners and areas around the chamber, since there the glue layer is usually thicker. The heating process takes 2 to 5 minutes depending on the power of the equipment.
Once the body is sufficiently warmed, place the suction cup at the bottom of the back cover, closer to the center. Carefully pull the suction cup upwards, creating a slight voltage, and simultaneously inject the plastic mediator into the resulting gap. If there is no gap, do not use force - it is better to warm up the device a little more.
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Before heating, remove the protective cover and wipe the back surface with an alcohol napkin. Fat spots can burn, leaving indissoluble marks on the glass.
Move the mediator along the perimeter, gradually cutting through the adhesive layer. Don't inject the tool deep, 2-3 millimeters are enough to avoid hitting the internal components. Gradually go around the device in a circle, freeing the lid from the glue.
Dismantling of screws and removal of protective plate
Once the perimeter adhesive layer has been overcome, the back cover should be easy to remove, but underneath it is a metal or plastic plate covering the main nodes of the smartphone, and it is fixed by a lot of screws that need to be twisted out.
Redmi Note 5 uses a system of screws of different lengths, and it's very important to follow the order of twisting and folding, usually the screws around the perimeter are longer than those in the center, and if you confuse them when you build them, you can break the motherboard or damage the thread.
☑️ Check before charge is withdrawn
Use a magnetic card or a piece of paper that you can schematically spread the screws in the same order they were twisted, which will save you time and nerves during the reverse assembly phase. After removing all the screws, carefully remove the protective plate, lifting it from the edge where there are no plumes.
Under the plate, you'll see the battery, the main board, and the camera module. Note that some elements may be glued to the plate or antenna contacts may be attached. Act slowly and carefully inspect the connections before removing the protection completely.
| Type of screw | Location. | Features |
|---|---|---|
| Long screws | Perimeter of the frame | They fix the basic structure. |
| Short screws. | Central zone | Putting the charge on the battery |
| Screws at the camera | Near the camera module | They need special care. |
Disconnection of plumes and access to the battery
When you remove the protective plate, you get direct access to the insides of the smartphone, but before you take out the battery or other components, you need to turn off the device, and that first of all, you disconnect the battery connector from the motherboard.
The battery plume in the Xiaomi Redmi Note 5 is usually covered with an additional metal bar or plastic fixture. Carefully tuck it in with a plastic blade and disconnect it. Only then you can safely work with other display plumes, cameras and buttons.
If you're looking for a battery replacement, look at the two black tongue strips underneath the battery, and pull them out, you can extract a swollen or old power cell without using chemical solvents or heating too much. Never try to tamper with metal objects.
⚠️ Warning: When you turn off the plumes, don't pull them by the wires. Just take the hard connector. Thin conductors break easily, which will require complex soldering to recover.
Access to the bottom plumes connecting the charging board to the main board may require removing additional plastic plugs. Beware: this area often passes an antenna cable, which also needs to be gently disconnected or sideways.
What to do if the battery is not removed?
Assembly of the device and verification of functionality
The Redmi Note 5 build process is reversed: install a new battery or repair work, plug in the power plume and check the device to turn on before the lid is finally fixed, avoiding re-disassembly in the event of an error.
Once you're sure you're working, put all the plumes in your ducts so they don't get clamped down. Set up a protective plate and twist all the screws, keeping them long and in place. Don't tighten the screws too hard to break the threads in the plastic racks of the case.
Before sticking the back cover, clean the body frame and the lid itself of residues of old glue. Use alcohol wipes or degreaser. Apply a new B-7000 glue layer or use a pre-cut adhesive that ensures tightness.
- 🧹 Carefully clean the surfaces of dust and fat
- 🧴 Apply a thin, uniform layer of glue around the perimeter
- ⏱ Let the glue dry. 1-2 minutes before pressing
- 🤲 Evenly press the lid and fix the rubber harness on 1-2 hour
Once the lid is installed and the harness is fixed, leave the device dry. The glue takes about 24 hours to be fully polymerized, but it gains primary strength faster, and don't load the smartphone or test its moisture protection if it's intended by the design.
Typical errors and precautions
Disassembling electronics is a process that requires concentration, and one of the most common mistakes of beginners is to ignore the sequence of actions, trying to remove the lid without first heating or extracting. SIM-The cards often lead to cracks in the glass.
Using inappropriate tools, such as a knife or thick screwdriver, instead of plastic blades, is guaranteed to leave traces on the case, and a metal tool can accidentally close contacts on the board, which will short circuit and the device will fail.
Another common problem is the loss of small screws or the confusion of their installation locations. As mentioned earlier, screws of different lengths are critical. A long screw twisted into a short hole can penetrate the board's textolite through.
⚠️ Attention: If you hear a crunch or feel strong resistance to the lid, stop. You probably forgot to unscrew some screw or didn't warm up enough.
Static electricity is also worth mentioning: Although modern smartphones are protected, the risk of damage to sensitive electronics by statics persists, especially in dry rooms, it is recommended to periodically touch grounded objects or use an antistatic bracelet.
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The secret to success is to take your time, and every second you spend looking around and moving carefully saves hours in finding solutions to problems.