Xiaomi Redmi 6 has proven to be a reliable budget device, but over time, even the most durable equipment requires intervention. The need to open the case can arise for various reasons: replacing broken glass, installing a new battery or cleaning dust and moisture after an accidental fall. It is important to understand that the dismantling process requires accuracy, since the design of budget models often involves the use of glue to fix components.
Before you start dismantling, you need to make sure that you have a specialized tool. Trying to open the case of a smartphone with improvised means, such as a knife or a pin, with a high probability will damage the plastic latches or, worse, puncture the battery. In this article, we will look at a professional approach to disassembling a gadget that minimizes the risk of breakage.
The interior of the model is quite compact, but access to the main nodes is blocked by several layers of protection. You will work with adhesive joints and thin plumes, so patience will be your main ally. Dismantling should be done in a well-lit place where you can clearly distinguish between small screws and connectors.
⚠️ Warning: Before starting any work, be sure to turn off the device.
Necessary tools for safe disassembly
Well-prepared workplaces are half the success. To open Redmi 6 without consequences, you'll need a minimal but specific set of tools. Using inappropriate items can leave scratches on the frame or crumbling plastic.
The main tool will be the heating element, as the display module and the back cover (depending on the modification) are fixed to the glue, you will also need suction cups to create the initial gap and mediators to further cut the glue. Remember to use the magnetic board or organizer for screws, as their sizes may vary.
- 🔧 Set of screwdrivers (cross-haired) PH000 and PH00) screw-twisting.
- 🌡️ Hair dryer or heating pad for uniform heating of the adhesive layer.
- 🎴 Plastic blades (mediators) for opening the body.
- 🧲 Tweezers with dielectric tips for working with small details.
- 🧴 Isopropyl alcohol or special liquid B-7000 glue-removal.
Special attention should be paid to the suction cup. It should be of high quality and fit tightly to the surface of the glass. If the suction cup slides, you risk putting excessive force and crushing the display matrix, even if you change only the back cover. Repair tools are better purchased in specialized stores, rather than using household analogues.
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Use isopropyl alcohol to dissolve the glue, as it evaporates quickly and does not conduct electricity, unlike water or solvents.
Preparation of the smartphone and precautions
The preparation process begins long before you pick up the screwdriver. The first step is always to back up the data, even if your goal is to physically replace the battery, there is always a risk of damaging the memory plume or the board itself, save important contacts and photos to the cloud or to your computer.
Next, we need to remove the tray. SIM-It's standard, but it's often forgotten in a hurry. If you try to split the case without taking out the tray, you can damage the lock mechanism or the plastic frame of the device itself. Make sure the smartphone is completely cooled if it's been used extensively before.
| Preparation phase | Action. | Risks of ignoring |
|---|---|---|
| Backup | Save data to the cloud/PC | Loss of personal information |
| Extracting the SIM | Clothing tray with paper clip | Damage to the shell during disassembly |
| Cleaning the hull | Drinking with alcohol | Getting dirt inside at autopsy |
| Battery charge | Discharge to 15-20% | Risk of fire in case of damage |
It's also important to prepare the surface on which the phone will lie, which is clean, flat and non-conductive. A silicone mat is perfect for repairs. If you don't have one, you can use a clean towel, but make sure that the small screws don't roll into the pile. Data security and the physical integrity of the device depend on these little things.
Removal of the back cover and primary access
The Redmi 6 model has a plastic back cover that is attached to a two-part perimeter glue.Heat is a key point of this stage. Turn on the dryer at the average temperature and warm the perimeter of the rear panel evenly for 2-3 minutes. Don't hold the hair dryer at one point for too long to not melt the plastic.
After heating, apply the suction cup to the bottom of the back cover, closer to the center, but not too close to the edge. Pull up, creating tension, and in the resulting gap, carefully insert a thin plastic blade. If the lid does not respond, do not use force - better warm it up again. The movements of the shoulder blade should be sliding along the edge, cutting the glue.
You can use a blade around the perimeter of the device, and you can pay special attention to the corners and areas around the camera module, because there's a thicker layer of glue, and once all the latches are pulled, the lid should be easily removed, and underneath that you'll see a plastic frame that covers the main components.
⚠️ Warning: Do not try to cover with nails or metal objects immediately after heating – the plastic becomes soft and easily deforms, leaving dents.
Dismantling of the protective plastic frame
Once you remove the decorative lid, you'll see a plastic frame that's screwed with a lot of screws to the metal frame, which holds the motherboard and the battery, and you'll need to unscrew all the visible screws to access the insides. Their number may vary depending on the fee revision, but they are usually around. 10-12 piece.
The screws can be of different lengths. It's critical to remember or record on a circuit which screw was twisted from where. A long screw screw screwed into a hole for a short one can break through the tracks on the board or damage the battery, which will lead to fatal consequences. Use an organizer or a sheet of paper with a drawn circuit.
Once you've twisted all the screws, the frame won't come off by itself, it can stick on the glue residues or be fixed by the plumes that go underneath it, and you can gently lift the frame around the perimeter to see if there's any components involved, and in some cases, you need to warm up the frame a little bit if it's sitting very tight.
- 🔍 Visually inspect the location of the screws before twisting.
- 📏 Sort the fastener by length and place of installation.
- 🔌 Check if the plumes pass under the frame before pulling it up.
Hidden screws.
Disabling the plumes and retrieving the battery
When the frame is removed, the motherboard is accessed, and the first thing you do is turn off the main battery plume, so that the device is completely powered off before other sensitive plumes (display, cameras, buttons) are disconnected. The battery connector is usually located at the bottom or center of the board.
Use a plastic blade or nail to turn off. Metal tools are undesirable here because of the risk of closing the contacts. Tuck the connector up, with caution, because the connectors are very fragile. After you turn off the battery, you can safely disconnect the plume of the display and the touchscreen, which are at the top of the board.
Replacing the battery in Xiaomi Redmi 6 requires care, because it's glued to the body. Don't pull it by the wires! Under the battery, you need to carefully insert a plastic card or a spatula, before applying some alcohol under the edge of the battery to soften the glue. Move the card progressively, cutting off the glue until the battery is free.
Sequence of disconnection:
1. Battery plume (always first!)
2. Display plume
3.A plume of touchscreen
4. Camera plumes and buttonsIt is critical that the lithium polymer battery is not damaged; a puncture of the battery will cause instant ignition and toxic smoke; if the battery is swelling, it should be handled with extreme caution, without squeezing.
☑️ Safe shutdown
Replacement of the display module and assembly
If the purpose of the disassembly was to replace the broken screen, then once the plumes are turned off, the old module can be removed. In the Redmi 6 model, the display module is often changed in the assembly with the frame, which greatly simplifies the process. You do not need to separate the glass from the matrix, just move the board to a new frame with the screen.
When you install a new module, make sure all the connectors are in place before you click. The plumes should be flat, no cracks. After checking the connections, you can start the assembly in the reverse order. First, the frame with the board is screwed, then the battery is connected, and only after checking the device is turned on, the back cover is glued.
Use a special glue (B-7000 or analog) to fix the back cover. Apply it in a thin strip around the perimeter, avoiding getting into the camera lens and speaker. Press the cover and lock the device with rubber bands for 15-20 minutes before the initial grasp of the glue. Full polymerization takes about 24 hours.
⚠️ Warning: Do not turn on the device unless you are sure that the plumes are connected correctly.A short circuit can burn the power controller on the motherboard.
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The quality of the glue and the correct sequence of the connection of the plumes are the main factors for successful smartphone assembly.