Xiaomi Redmi 4X has proven itself as a reliable device with a metal body, but over time, any gadget requires maintenance. Owners often face the need to replace a broken screen, battery or clean the speakers from dust. The first step of any repair is to carefully remove the back cover, which in the case of this model is a certain difficulty.
Unlike budget models with plastic panels, it uses an aluminum case with antenna inserts that attaches to screws and adhesives. Wrong actions can damage the plumes or deform the frame. We will take all the nuances of the process so that you can safely reach the internal components.
You'll need a minimal set of tools to get started, which you'll find in any electronics store, and patience and accuracy are your main allies in this, because rush often leads to latches breaking, and we'll go into detail on each step of the procedure.
Preparation of the workplace and tools
Before you start dismantling Xiaomi Redmi 4X, you need to organize a comfortable workspace. the table should be well lit, and the surface is clean and not slippery, so that small screws do not get lost. The security of the device depends on how well you prepare for the process.
You will need the following tools to successfully complete the task:
- 🔧 Phillips type screwdriver (cross) small size for screw twisting.
- 🔥 A hair dryer or heating platform to soften the glue under the frame.
- 💳 Plastic card or mediator for snapping the case without scratches.
- 🧲 Magnetic mat or container for sorting screws of different sizes.
⚠️ Note: Using metal blades or knives to open Xiaomi’s body 4X It is strictly prohibited, as it is guaranteed to damage the aluminum frame and may damage the internal components.
Be sure to turn off your smartphone before any manipulations begin. If the device has been turned on, wait until the shutdown procedure is complete to avoid short circuiting in the power supply chain when in contact with internal plumes.
☑️ Checklist before disassembly
Design features of Redmi 4X
Understanding the Xiaomi Redmi 4X body is critical to successful disassembly: The back is made of solid metal, but has plastic inserts to pass the signal that are more fragile than aluminum. The design involves mounting the panel around the perimeter on a two-part adhesive and several screws under the bottom caps.
Inside the case, there is a motherboard, battery and camera module connected by thin plumes. Careless handling of the metal case can lead to its bending, which later complicates assembly or breaks the leakiness, and it is also worth remembering the presence of a fingerprint scanner plume, which is often forgotten to turn off.
Heating the case is a must, because the adhesive used by the manufacturer is very hard at room temperature, and without prior heating, there is a high risk of breaking the plastic latches or deforming the lid itself when you try to remove it.
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Use isopropyl alcohol to dissolve the glue if the hair dryer doesn't help completely.Drip some liquid around the perimeter and wait 2-3 minutes.
The heating and removal process
The first thing to do is soften the adhesive base. Turn the dryer on at a medium temperature and evenly warm the perimeter of the Xiaomi 4X rear cover for 2-3 minutes. Keep the hair dryer 5-7 cm from the surface, constantly moving it so as not to overheat one point and damage the display on the back side.
After you warm up, flip your smartphone over and look at the bottom end, and you'll see two small holes next to the charging connector, and that's where the main screws are hiding, holding the structure, and carefully unscrew them using a thin cross screwdriver.
Don't make too much effort when you unscrew it. If the screw doesn't go, maybe the glue hasn't softened enough, and the heating procedure should be repeated, and once the screws are removed, you can start to separate the lid from the main frame.
Technique of neat opening of the body
Now that the screws are removed and the glue is heated, insert a plastic card or mediator into the junction between the back cover and the frame. Start moving from the bottom where the screws were, and smoothly steer the tool along the side faces, and you will hear the characteristic crackling of the adhesive coming off, which is normal.
Don't try to remove the lid completely. First, you need to walk around the perimeter, freeing up the adhesive layer. Pay special attention to the top of the smartphone, where the main camera module and flashes are located. In this area, the Xiaomi Redmi 4X has additional mounting elements.
When the perimeter is passed, raise the back slightly. Don't make sudden movements up, because the fingerprint scanner plume may remain connected inside. In some versions, it can be glued to the lid, and a sharp jerk will lead to its breakage.
⚠️ Warning: If the cover fails, do not use force. Reheat the dryer again, as the residual glue still holds the structure firmly enough.
Disconnection of plumes and internal components
Once the lid is lifted, you'll see the internal layout, the first thing you need to do is turn off the battery, find the battery connector on the motherboard, and gently unplug it with a plastic blade, which will turn the device off and keep you from accidentally shorting.
Then you have to turn off the fingerprint scanner plume if it goes to the back cover, and it's usually on the top of the track and it's attached with a small connector, and be careful, it's very thin and it can tear easily when handled carelessly.
Now you can take the back cover completely off, and you can access the main nodes: the motherboard, the battery, and the communication modules, and you can then unscrew the screws that hold the plastic pad over the motherboard to disassemble it further.
| Component | Location. | Type of attachment | Caution. |
|---|---|---|---|
| Battery | The bottom part | Glue tape. | High (risk of fire) |
| Screen plume | Top of the pay | Connector + pressing | Medium (fragile contacts) |
| Fingerprint scanner | Back cover. | Plate + glue | Very tall (pulverizing) |
| Vibromotor | Lower end | Screws + connector | Low. |
What to do if the plume is broken?
Assembly and installation of a new cover
The Xiaomi Redmi 4X is assembled in reverse order. Before installing a new or old cover, you must carefully clean the frame of the remnants of old glue. Use alcohol and plastic scraper to remove all irregularities, otherwise the new panel will lie loose.
Apply a new layer of glue (B-7000 or special double-sided tape for smartphones) around the perimeter of the frame. Give the glue a little dried (about 1-2 minutes), then carefully combine the lid and press it around the edges. Place the screws at the bottom of the case.
Once assembled, don't turn the smartphone on immediately. Let the glue polymerize for 30-60 minutes, putting the phone under a small load (such as a book), which will provide reliable fixation and protection from dust in the future.
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The quality of cleaning the frame from old glue directly affects the tightness of the case and the reliability of fixing the new cover.
Frequent errors in disassembly
Many users make the typical mistakes of trying to save time, most often forgetting to unscrew the bottom screws and trying to tear the lid off by force, which leads to breaking holes under the screws, and often ignore the need to turn off the battery before working with other plumes.
Another common problem is using a hair dryer too high, which can cause the battery to bloat or the polarization film to detach from the display. 10-15 seconds.
Ignoring the marking of the screws causes the long screws to be screwed into short holes when assembled, which can penetrate the motherboard right through. Always sort the fasteners as you disassemble them.