The Xiaomi Redmi 4X is one of the brand’s most popular budget smartphones, but even it has problems over time: battery drains, speaker breaks, or a plume replacement is required. To get to the internal components, you need to remove the back cover — a task that many find intimidating.
In this article, we will discuss how to open the back cover of the Redmi 4X without the risk of damaging the latches or display, what tools you will need, how to prepare the workplace and what mistakes beginners most often make, and we will also reveal some professional secrets that will make the process easier and save you time.
Importantly, if you've never taken a smartphone apart before, start by exploring the theory. The Redmi 4X design involves brittle plastic latches that are easy to break when handled carelessly, but don't worry, with the right approach, the risk is minimal.
Preparation for the disassembly: what you need to know before the beginning
Before you start screwdriver, make sure you really need to disassemble your smartphone. Xiaomi Redmi 4X has a non-shattered body, and any interference can affect the tightness. If your goal is to replace the battery or clean the dust, there is no alternative. But if the problem is software (for example, the smartphone does not turn on), first try to reset the settings using Recovery Mode.
Also note that once disassembled, the manufacturer's warranty is automatically voided. If your Redmi 4X is still in warranty service, you'd better contact the service center. For everyone else, go ahead!
- 🔧 Tools: plastic spatula (mediator), cross screwdriver PH00, tweezers, sucker (optional), hair dryer or heating plate.
- 📱 Smartphone status: Turn off the device, remove SIM-card and memory card. The battery must be discharged to 20-30% safe.
- 📸 Documentation: Take a picture of the original condition of the lid and the location of the screws – this will help with reverse assembly.
⚠️ Warning: If your Redmi is yours 4X If you've been in water or been hit hard, disassembly can be dangerous, corrosion on the board or damaged components can lead to short circuits.
Tools you need: what to buy and where not to save
The quality of the tools has a direct impact on the outcome, because cheap metal blades can scratch the body, and the wrong screwdriver can tear the screws, and here's the minimum set we recommend:
| Tool. | Appointment | Where to buy | Cost (roughly) |
|---|---|---|---|
| Plastic spatula (mediator) | Separation of the latch cover | AliExpress, Radio Goods Stores | 50–150 ₽ |
| Screwdriver PH00 (cross) | Back cover screws | Any hardware store | 100–300 ₽ |
| Suction (diameter 3-5 cm) | Fixing the cover with the garlic | Phone accessories stores | 80–200 ₽ |
| Hair dryer or heater | Softening of glue (if the cover is glued) | Household appliances | 500–2000 ₽ |
| Tweezers (antistatic) | Working with small details | AliExpress, radio shops | 100–250 ₽ |
Tip for choosing a shoulder blade: the optimal thickness is 0.2-0.3 mm. Too thin can break, and thick can damage the latches. If you do not find a specialized one, a guitar mediator (preferably soft) will do.
Some craftsmen use tape or tape to fix the display, which helps to avoid displacement of the module when the cover is undercoat, but this method requires caution: duct tape should not get on the screen or camera.
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Before buying tools, check the reviews about the seller. AliExpress often comes across sets with poor-quality screwdrivers that "lick" the screws.
Step-by-step: how to remove the back cover Xiaomi Redmi 4X
Now, to the most critical stage, follow the instructions carefully, because every step is important. If something goes wrong, don't force it: it's better to read the section again.
- Heat the case (if the cover is glued). Turn the dryer on to the minimum power and warm the back panel for 1-2 minutes, holding it at a distance of 10-15 cm. This will soften the glue and facilitate separation. Do not overheat - the temperature should not exceed 60 ° C.
- Put a plastic blade in the gap between the lid and the body at the headphone jack, carefully guide it along the perimeter, alternately snapping the locks. Start at the top, there's a smaller latch.
- Use a suction cup (optional) If the lid doesn't lend itself, attach the suction cup to the center of the back panel and pull up while putting the scapula on, which will help to evenly distribute the force.
- Disconnect the plumes. When you take the lid off, you'll see the battery pack and some plumes. Don't pull them, turn off the battery first, and put a plastic blade on the black socket.
☑️ Check before removing the lid
If the lid doesn't lend itself, don't panic. You may have missed one of the latches. Check if there are any areas left on the sides or at the bottom. Redmi 4X has particularly troubled areas, around the volume buttons and USB-Type C connector.
⚠️ Warning: if you hear a characteristic crack, it's a snap. Don't continue until you've assessed the damage. Sometimes you can reset the lid with even one broken latch, but the reliability of the fixation will decrease.
What to do if the lid is cracked?
Common Mistakes and How to Avoid Them
Even experienced craftsmen sometimes make mistakes when disassembling the Xiaomi Redmi 4X. Here are the most common ones and ways to prevent them:
- 🔨 Too much effort. A lot of people think that the lid needs to be "teared off" is a myth. If it doesn't work, you miss the latch or you don't warm up the glue enough.
- 🔥 Overheating with a hair dryer. Keep the hair dryer at a safe distance and don't direct hot air to the display - this can damage the liquid crystal layer.
- ⚡ Working without turning off the battery. Even a smartphone that's turned off can get a short circuit if you accidentally close the contacts on the board.
- 📏 Incorrect sequence. Start putting the lid on the top, not the bottom, where the most fragile latches are located.
The most dangerous mistake is the use of metal tools. One careless move and you scratch the case or, worse, damage the board. A plastic blade costs a penny, but saves you from expensive repairs.
Another thing to note is that if you're disassembling the Redmi 4X after a fall, be prepared for the possibility that there may be shards of glass or bent elements inside, so you'd better put on your gloves and work in a light background so you don't miss anything.
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Remember, 90 percent of the damage to a demolition is due to rush, and if you don't have the time or patience, trust a professional to do the job.
What to do after removing the cover: further actions
Congratulations! If you've reached this point, it means the lid has been successfully removed. Now you have the insides of the Xiaomi Redmi 4X -- the battery, the motherboard, the cameras and the plumes. What to do next depends on your goal.
- 🔋 Replace the battery: disconnect the battery connector, then gently pluck it (it is glued) and install the new battery only after cleaning the contacts with alcohol.
- 📸 Camera repair: Turn off the main module's plume (which is fixed by the latch) and replace it with a new one!
- 🔊 Cleaning speaker: use a soft brush or compressed air. Don't blow with your mouth - moisture from the breath can settle on the board.
- 🛠️ Diagnostics board: if the smartphone does not turn on, check for bloated capacitors or traces of oxidation.
If you just cleaned the device from dust, before assembly, make sure that there are no villi or debris left. Pay special attention to the charging connector - even a small mote can cause connection problems.
Put your smartphone back together. Rotate your screws cross-over to avoid skewing the lid. If you've got a backlash after you've assembled, make sure all the latches are in place.
How to check that everything is assembled correctly
After assembly, turn on the Redmi 4X and perform a few checks to make sure everything is working correctly:
- Button test: Check the response to the power and volume buttons, and they should be triggered clearly, without delay.
- Sensor check: swipe across the screen – there should be no “dead” zones or spontaneous presses.
- Charging: connect the charger. If the smartphone does not detect the cable, check if the USB-Type C connector bends.
- Cameras and speakers: Take a test photo and record the sound. Check the plumes if you're in trouble.
If you have new problems after assembly (for example, the screen flashes or the vibration does not work), chances are you forgot to connect some plume or the board is not fixed correctly. Take the smartphone apart again and carefully check all connections.
⚠️ Warning: If after disassembly, the smartphone begins to overheat or discharge quickly, this may indicate battery damage or short circuit on the board.
Alternative methods: when the standard method does not work
Sometimes the Redmi 4X lid is so tight that neither heat nor spatula helps, and alternative methods can be tried.
- 🧊 Freezing: Put your smartphone in a bag and put it in the freezer for 10 to 15 minutes. The cold will make the plastic more fragile, and the latches will snap off easier. Don't over-exert - condensation can damage the board.
- 🧴 Alcohol solution: apply a few drops of isopropyl alcohol around the perimeter of the lid. It will dissolve the glue, but will not damage the electronics. After the procedure, dry the smartphone 1-2 hours.
- 🔩 Special devices: In tool stores, they sell metal hooks to disassemble smartphones, which are thinner than shoulder blades and allow you to pinpoint the latches.
If none of these methods worked, it's possible that the lid was particularly glued to the factory, and in this case, you should go to the service center, because if you try it yourself, you can damage the body.
Remember: Xiaomi Redmi 4X — budget smartphone, and the replacement of the cover will cost inexpensive (about 500-1000) ₽ Sometimes the risk of damage to the device is not justified.