Xiaomi Redmi 5 Plus is a popular smartphone of 2018, which is still actively used due to balanced performance and maintainability. However, disassembling this device has its own nuances: glue fixing the lid, brittle plumes and the risk of battery damage if you sloppy actions. If you need to replace the battery, speaker or microphone, the first step is to remove the rear panel – a task that requires patience and the right tools.
In this article, we will take a closer look at the process of removing the Redmi 5 Plus cover, list the tools you need, and warn you of common errors. You will learn how to minimize the risks of damage to the body or internal components, and what to do if the lid is stuck to the frame. The instructions are suitable for models with the original body - if your phone has already undergone repairs, the fixation of parts may differ.
Preparation for disassembly: tools and security measures
Before you start removing the lid, make sure you have everything you need, and if you don't have one tool, you can chip plastic or damage the plumes.
- 🔧 Plastic blade (or mediator) - for tidy lid lashing. Metal tools leave scratches!
- 🔥 Dryer or thermo-air station - for softening the glue (temperature 60-80)°C).
- 🧲 Suction cups (optional) – help lift the cover after heating.
- 📦 Container for screws – in Redmi 5 Plus, screws of different sizes are used, they are easy to confuse.
- 🧴 Isopropyl alcohol (90%+) — scaling.
Also, prepare your workplace: a clean surface with good lighting and no foreign objects. In Redmi 5 Plus, the fingerprint scanner plume runs under the battery, which is easy to tear when you carelessly move. If you've never taken your smartphones apart, practice on an unnecessary device or watch video disassembly.
⚠️ Warning: Do not use a knife or screwdriver to lash the lid! Even a little pressure with metal leaves microcracks on the plastic that will eventually turn into chips.
Step 1: Turn off the phone and retrieve SIM-map
Before disassembling, be sure to turn off the Xiaomi Redmi 5 Plus and get the tray for the SIM-This will prevent short circuits from accidentally coming into contact with the board. The tray is retrieved using a paper clip or a special key (included in the phone).
If the phone doesn't turn off (for example, due to a discharged battery), do not try to disassemble it when it is turned on. The battery under load can deform when the hairdryer is heated, which will lead to swelling or leakage of the electrolyte. In extreme cases, wait for a full discharge (but it will take several days).
- 🔋 If the battery is blown, don't heat the phone.
- 🔌 Turn off the charger 10-15 minutes before disassembly so that the capacitors on the board are discharged.
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If the lid of the phone has already been removed, check for residues of old glue around the perimeter, and remove them with alcohol before disassembly begins - this will facilitate the process.
Step 2: Heating the cover to soften the glue
The Redmi 5 Plus cover is glued around the perimeter, and it's almost impossible to remove it without heating. Use a dryer at a minimum power (or a thermal air station at 60-80 ° C). Heat the body evenly, driving the hairdryer around for 2-3 minutes. Pay special attention to the corners - there is usually more glue.
Don't overheat your phone! The optimum temperature is when the lid is warm to the touch, but not hot. Exceeding 90°C can damage the battery or the screen. If you don't have a thermometer, be tactile-oriented: the body should be warm, but not burn your fingers.
| Heat zone | Time, sec. | Temperature, °C | Notes |
|---|---|---|---|
| Top part (over the speaker) | 30–40 | 70–75 | There's a fingerprint scanner plume going through. |
| Lower part (above the USB connector) | 25–35 | 65–70 | The glue here is less dense. |
| Side sides (left/right) | 20–30 | 60–65 | Heat it up one by one. |
| Corners | 15–20 | 75–80 | The most troubled areas |
⚠️ Warning: If the lid fails after heating, do not apply force! Reheat for another 1-2 minutes. Too much pressure can break the latches or break the plumes.
Step 3: Careful separation of the lid from the body
Once heated, take a plastic blade and start pulling the lid from the lower left corner (near the USB connector). This is the safest place — there are no plumes. Insert the blade 1-2 mm and slowly lead along the edge, gradually increasing the gap.
Once the lid is 3 to 5 mm up, you can use suction cups to fix it, then you can move around the perimeter, you can loosen the glue one by one, and don't try to rip the lid off abruptly, because it will break the fingerprint scanner plume or damage the antenna contacts.
Only use a plastic spatula.|Start at the bottom left corner.|Do not apply force to the center of the cover.|Control the depth of the scapula immersion (max 2 mm)|When resisting, reheat the problem area-->
If the lid is stuck to the frame, don't panic. It's often because of old glue.
- Heat the problem area again with a hairdryer.
- Drop 1-2 drops of isopropyl alcohol under the edge of the cover (it dissolves the glue).
- Wait 10-15 seconds and try again.
What to do if the lid is cracked?
Step 4: Turn off the battery and plumes
When you take the lid off, you'll see the battery locked in black film, and the first thing you do is turn off the battery to avoid short circuits.
- Unscrew 5 screws (size T3), fixing the metal plate above the battery.
- Carefully slap the plate and put it aside.
- Disconnect the battery connector with a plastic blade (don’t pull the wires!).
Now you can turn off the other plumes:
- The fingerprint scanner plume (top, under the battery).
- Camera plumes and speaker (to the right of the battery).
- Antenna contacts (on the sides of the frame).
Don't pull the plumes up! They're fixed by latches that you have to lift first. Use tweezers or a plastic blade to do that. If the plume doesn't detach, make sure it's caught on the next part.
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Shutting down the battery is a must before any board manipulation, and even a discharged battery can cause a short circuit when in contact with metal tools.
Common Mistakes and How to Avoid Them
Even experienced craftsmen sometimes make mistakes when disassembling the Xiaomi Redmi 5 Plus, and here are the most common problems and ways to prevent them:
- 🔧 Broken lid latches - occur when using metal tools. Always use plastic shoulder blades.
- 🔥 Battery overheating - if the hair dryer is too hot, the battery may swell.Controll the temperature with your hand.
- 📱 A broken fingerprint scanner plume -- don't pull the lid up if it's still on the glue. First, loosen all sides.
- 🧲 Lost screws – Redmi 5 Plus uses different lengths of screws.
Another common mistake is ignoring antenna contacts, and if they're not sloppy, they can break off from the board, which will cause the network to lose or lose Wi-Fi, and if the contact breaks off, you can solder it back, but it requires soldering skills. SMD-component.
If the phone does not turn on after assembly, check:
- Is the battery connected (sometimes the connector is not fixed to the end).
Are the plumes (especially the fingerprint scanner) clogged?
- Whether all screws are twisted (unpatched screws can close the board).
What to do after the lid is removed?
When the lid is successfully removed, you will be able to access the internal components of the Redmi 5 Plus, depending on the purpose of disassembly, further steps may include:
- 🔋 Battery replacement is the most popular repair. The original battery has a capacity of 4,000 mAh. MB40>).
- 🔊 Replacement of speaker or microphone – speaker is located at the bottom, microphone – next to the main camera.
- 📷 Clean or replace the camera - the module is attached to 2 screws!
- 🛠️ Repair of the fingerprint scanner plume – if it breaks, you will have to replace the entire module (article) MDG6_fingerprint>).
If you have replaced the battery, be sure to calibrate it after assembly:
1. Charge the phone to 100%.
2. Turn off the charging and use it until completely discharged.
3. Repeat the cycle 2-3 times.
When changing the speaker or microphone, check the tightness of the case - there is no official water protection in the Redmi 5 Plus, but dust can penetrate the slits. If necessary, apply a thin layer of silicone sealant around the perimeter of the lid before assembly.