The process of disassembling the Xiaomi Redmi 5 Plus smartphone may seem intimidating to the untrained user, but with the right tools and a clear understanding of the sequence of actions, this task is quite solvable at home. The need to remove the rear panel most often occurs when replacing broken glass, installing a new battery or repairing the charging module, which often fails.
It is important to understand that the design of the device does not involve easy access to the insides, since the back cover is planted on a sufficiently strong layer of glue. Any careless movement or use of excessive force can damage not only the panel itself, but also internal components such as plumes or screen. Before starting work, be sure to be ready to handle delicate parts.
In this article, we will discuss each stage of dismantling in detail, paying special attention to heating points and screw attachments to minimize the risk of failure. Compliance with temperature conditions and the use of quality tools is the key to successfully completing the procedure without unnecessary repair costs in the service center.
Tools and workplace preparation required
To disassemble the Redmi 5 Plus properly, it's not enough to have a screwdriver; you'll need a specialized toolkit that allows you to work delicately and efficiently, and static electricity and physical strength are the main enemies in this process, so preparation is key.
First of all, you need a hair dryer or a special heating pad to warm up the case evenly. Open-helix appliances are unacceptable, as they can damage the screen matrix or melt the plastic. Also, stock up on a suction cup, a thin plastic card or a perimeter opener and a set of Phillips screwdrivers.
- 🔧 A set of precision screwdrivers (mandatory presence of cross-shaped) PH000).
- 🌡️ Hair dryer with temperature adjustment or heat pad.
- 🧤 Antistatic gloves or dielectric-coated tweezers.
- 🧩 Plastic blades and mediators for opening the body.
The workplace should be well lit and free of foreign objects. It is recommended to use a magnetic mat so that screws of different sizes do not get confused, since the smartphone uses fasteners of different lengths, and their rearrangement can damage the motherboard.
⚠️ Warning: Before starting any work, be sure to completely turn off the device. Attempting to remove the lid on the phone can lead to a short circuit and irreversible failure of the electronics.
☑️ Preparation for disassembly
Safety and warm-up of the body
The key to removing the lid on the Xiaomi Redmi 5 Plus is to properly warm up the adhesive layer. The factory glue at room temperature holds the back panel very tightly, and trying to separate it without heating is guaranteed to lead to cracks in the glass or deformation of the frame.
Heat should be evenly, moving the hair dryer around the perimeter of the device. Pay special attention to the corners and edges where the glue layer is usually thicker. The heating temperature should not exceed 80-90 degrees Celsius, so as not to damage the battery and display module located directly under the lid.
How to check the sufficiency of heating?
The heating process usually takes 2 to 4 minutes depending on the power of your equipment. Don't rush and try to lid the lid right away, let the heat penetrate into the adhesive layer. If you feel that the panel is not amenable, repeat the warm-up procedure, but do not use brute force.
| Heat zone | Time of exposure | Temperature regime | Risks. |
|---|---|---|---|
| Perimeter of the lid | 2-3 minutes | 80-90°C | Screen overheating |
| Body angles | 30-40 seconds. | 85-90°C | Deformation of the framework |
| Central part | Not required | - | Battery damage |
| Camera area | 10-15 seconds | 70-80°C | Condensate in the module |
Dismantling the back panel and disconnecting the plumes
Once the body is heated, you need to carefully separate the back cover, use a suction cup, attach it to the bottom of the glass, and create a slight tension upwards, insert a thin plastic map or mediator blade into the resulting gap, and use the tool along the perimeter, cutting the softened glue.
Move slowly without making sharp jerks.The fingerprint scanner plume in the Redmi 5 Plus model can be glued to the inside of the lid or connected to the board, so you can't sharply tear the panel apart.Make sure you've passed the tool all over the circle before finally removing the lid.
When the lid is removed, you will have access to the insides, and the first thing you need to do is to disconnect the battery from the motherboard, carefully bend the protective plate (if you have one) and disconnect the battery connector with a plastic blade so that the contacts are not damaged.
⚠️ Warning: Never use metal tools to turn off plumes.The metal can close contacts on the board, causing the power controller or other important components to burn up.
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If the scanner plume is glued to the lid, don't pull it.Gently heat the glue area with a hair dryer and slowly separate the duct tape while holding the plume with tweezers.
Removing metal screen and accessing components
In the design of Xiaomi Redmi 5 Plus under the back cover hides a metal screen that covers the main board and battery. To get full access to the motherboard, you need to twist all the screws that attach this screen to the frame of the device.
The screws can be hidden under stickers or under plastic plugs, so carefully inspect the surface. Use a magnetic screwdriver to avoid dropping the fasteners inside the case, from which they will be extremely difficult to remove without completely disassembling.
Once you've unscrewed all the screws, the metal screen is removed with a light motion, and underneath it you'll see the main board, the main camera module, the speaker, and other nodes, and if your goal was to replace the charging socket, now you're open to the bottom of the board.
- 🔍 Carefully inspect the charge for oxides or bloating.
- 📸 Take a photo of the location of the plumes before they are turned off.
- 🧹 Clean the insides of the dust with a soft brush if necessary.
Replacement of the battery and other modules
Most often, disassembly is done to replace the power source. In the Redmi 5 Plus, the battery is glued to the frame on bilateral tape. To remove it, you need to warm up the case again a little or use special hoods, but the safest thing to do is to peel the battery with a plastic card, starting from the upper or lower edge.
Under no circumstances puncture the battery or bend it. Damage to the lithium polymer cell can cause fire. The new battery is installed on a fresh layer of glue or double-sided tape, which must be applied to the frame beforehand.
When you replace other modules, such as a vibrator or speaker, keep track of the integrity of their plumes. The connectors in this model are fragile enough to be easily damaged if you handle them carelessly. Set new parts tightly until you click.
Assembly of the device and check of performance
The battery plume is first connected, and only then can the device be temporarily turned on to check the basic functions of sound, vibration, touchscreen and charging, and if everything works, the device switches off again.
The metal screen is then placed in place and secured by screws, so that the screws do not pull over so that the threads in the plastic frame racks do not break, and then a new layer of glue or a special sealant B-7000 is applied around the perimeter of the back cover.
The lid is pressed against the body and fixed with rubber bands for 15-20 minutes until the glue is completely dry. After the final assembly, conduct a final test of all the functions of the smartphone to ensure that the repair is successful.
⚠️ Warning: Do not turn on the phone immediately after applying the glue if it hits the contacts or connectors. 1-2 hour.
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The main principle of assembly is the inverse sequence of actions and checking each node before the final sealing of the housing.