Xiaomi's Max series has always been a big deal, and the second-generation model is no exception. The huge screen and the impressive battery make it a great multimedia center, but it's these same characteristics that often cause crashes. Many owners are faced with broken glass or a worn-out battery that stops holding charge.
Self-disassembly Xiaomi Mi Max 2 (model MDE6S) is a real challenge, if you have the minimum experience and the right tools. However, given the size of the device and the design features, there are nuances that differ from disassembling more compact models. In this article, we will discuss the dismantling process in detail so that you can safely replace damaged components.
Before you start, you need to be clear about the risks, opening the case automatically deprives you of an official warranty if it is still valid, and careless actions can damage the plumes or even fire the battery. Safety is paramount, so follow the instructions carefully.
Preparation of the workplace and necessary tools
Well, good disassembly begins long before you pick up the screwdriver. The first step is to organize the workspace. You'll need a clean, well-lit surface, preferably with antistatic coatings, or just a smooth table without pile. Small screws are easily lost, so get a magnetic mat or a container of cells ready to sort the fastener along the length.
The toolkit should be specialized. A standard household kit may not be suitable, as the screws in Xiaomi smartphones often have specific hats. You will need a set of precision screwdrivers, including a cross PH000 and possibly a Torx T5. Also indispensable are plastic mediators, a sucker and a thin metal scalpel for working with the adhesive layer.
- 🛠️ Set of screwdrivers with magnetic tips of different sizes
- 📱 Plastic blades and mediators for opening the body
- 🔥 A hair dryer or thermophen to soften glue
- 🧲 Metal tweezers with curved ends
Pay special attention to lighting. Shadows can hide small cracks in the plumes or hidden screws under stickers. Using a magnifier or a zoom lamp will make it much easier to work with miniature connectors inside the device.
☑️ Ready for repair
Primary dismantling: Removal of the back cover
The process of opening the Xiaomi Mi Max 2 begins with removing the back panel, which is attached to the two-part glue. Unlike the older models, there are no perimeter screws, which makes the work with heating critical. Don't try to unplug the lid with a cold tool - the metal of the case can deform and the glass crack.
Turn on the dryer and evenly warm the perimeter of the device for 2-3 minutes. The temperature should not exceed 80-90 ° C, so as not to damage the internal components or the display on the back. Periodically check the heating with your hand: if the body became hot but tolerant to touch, the glue softened enough.
⚠️ Warning: Never heat the area around the main camera and the speaker is too intense.The camera module is sensitive to overheating, which can cause black spots on the matrix.
After warming up, use a suction cup to create a small gap at the bottom of the device, next to the Mi logo. In the resulting gap, carefully insert a plastic mediator and, while making sliding movements along the edges, cut the adhesive layer. Move slowly, without removing the mediator completely, so that the glue does not grasp again.
When all sides are free, gently lift the back cover. Don't make sharp jerks upwards, as a fingerprint scanner plume or antenna module may be glued to the lid. First, visually make sure there are no connections to the main board.
What to do if the lid is not removed?
Disabling plumes and dismantling protective screens
When you take the back cover off, you'll see the inside of the smartphone, the battery takes up the main space, and the top of the motherboard is a metal plate, and you'll need to unscrew some screws to access the connectors to lock in that protection.
Use the PH000 screwdriver to unscrew the screws. Put them in a separate cell marked as "board protection." Once you remove the metal screen, you'll see the main plumes: the display, the battery module and the cameras. First of all, be sure to turn off the battery to shut down the system and avoid short circuits.
Detach the plumes requires care. Put your nail or plastic blade upright. Don't swing the connector from side to side because you can break the contact pads on the board. The sequence of the other plumes is not as critical, but it's better to follow the logic from the periphery to the center.
- 🔋 Disconnect the battery plume (first thing!)
- 📺 Disable the display module plume
- 📸 Remove connectors of the main and front cameras
- 📡 Disable antenna cables (if access is impaired)
Now you can pull out the motherboard. It can sit tight because of the buttons and connectors, and with light swaying motions, lift the board up, make sure nothing gets caught, and put it on the antistatic surface with the front up.
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Take a picture of the screws before you take them off. The screws of different lengths can be standing next to each other, and if you mix them up when you build them, you can punch through the body or damage the board.
Removal of the battery and replacement of components
In the Xiaomi Mi Max 2, the battery takes up the lion’s share of the internal volume and has a huge capacity of 5,300 mAh. It is glued to the frame quite strongly, which often causes difficulties in replacing. The main mistake of beginners is trying to pull the battery beyond the tongue or edges, which can damage and fire.
To safely extract it, you'll need to heat up again. Carefully warm up the battery area through the open space where it's located. Don't point the hair dryer directly at the bloated battery if it's already deformed -- that's dangerous. Use special sticky tapes or suction cups to lift the battery.
If the battery fails, you can use medical alcohol or a special solvent of adhesive (for example, B-7000 in liquid form) by dripping it around the perimeter. Give the liquid to penetrate the glue layer for 5-10 minutes. Then, using a plastic card, carefully separate the battery from the case, making sawing movements.
| Component | Difficulty replacing | Risks. | The necessary tool |
|---|---|---|---|
| Battery | Tall. | Fire, bloating. | Hair dryer, suction cups, alcohol |
| Screen (module) | Medium | Breaking the matrix | Mediators, screwdrivers. |
| Charging charges | Low. | The plume break | Screwdriver PH000 |
| Main camera. | Medium | Dust on the lens | Tweezers, pears. |
The new battery is installed in reverse order. Be sure to apply a new layer of glue or use bilateral adhesive tapes to keep the battery from dangling inside the case.
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Never punctur or bend the battery. Damage to the lithium polymer cell can cause an instant chemical reaction, releasing heat and smoke.
Replacement of the display module and assembly of the body
If your goal was to replace a broken screen, then after removing the frame and disconnecting the plumes, you need to separate the display module from the metal frame. In the Xiaomi Mi Max 2, the screen is often glued to the frame, so you will need to reheat the perimeter of the front.
Use a thin string or a special fishing line to cut the adhesive layer between the frame and the display. Move the tool carefully, trying not to touch the matrix or touchscreen itself. After separating the old module, degrease the frame with alcohol and apply the new adhesive B-7000 in a thin layer.
When you install a new module, make sure the plume is stacked correctly and not squeezed. Press the screen around the perimeter and lock it with rubber rings or a 15-20 minute load for primary glue polymerization, and then you can start the final assembly.
The assembly is done in reverse order: install the motherboard, connect all the plumes, install a metal shield, connect the battery and close the back cover. When installing the cover, make sure that all the screws are twisted and the plumes do not fall under the edge.
- 🧹 Wash your insides thoroughly from dust before closing
- 🔌 Check all connectors before installing the cover
- 🔩 Swirl the screws cross-cross for a uniform pinch
The final step is to check the performance, turn on the device, check the touchscreen for dead zones, the speakers, microphone and communication modules, and if everything is working correctly, you can consider the repair completed.
Typical errors and precautions
Disassembling large smartphones like the Mi Max 2 has its own characteristics, ignoring which leads to fatal consequences. One of the most common mistakes is to use excessive force where you want to heat. The metal frame has a high thermal conductivity, and if the glue does not warm up, you risk bend the case or break plastic latches.
Another problem is the loss of screws or the confusion of their places. In the design of the smartphone, the screws can differ only by 0.5 mm in length, but this is critical. A long screw twisted into a hole for a short one can rest on the board and damage the tracks or the chip itself when tightened.
⚠️ Note: When working with the sleeves