The camera curtain on the Xiaomi Redmi 9 is a small but important element that protects the lens from dust, scratches and mechanical damage. Over time, it can break: jam, fall off or stop closing. If you notice that the curtain does not work when the camera starts, creaks or is not at all, it is time to replace it.
Many users are afraid to disassemble the smartphone themselves for fear of damaging the internal components. However, replacing the curtain with a Redmi 9 is one of the easiest repair procedures that even a beginner can cope with. In this article, we will discuss the entire process from tool preparation to the final assembly, and also give tips on how to avoid typical errors.
⚠️ Warning: If your Xiaomi Redmi 9 is warranty-free, self-repair will cancel it.
Causes of camera curtain failure on Redmi 9
The curtain of the camera breaks for a reason, most often because of:
- 🔧 Mechanical damage – phone drop, bumps or pressing hard on the camera area.
- 🧹 Dust and dirt - over time, particles fall under the curtain that block its movement.
- 🔋 Wear mechanism – plastic gears inside the curtain module are erased from frequent use.
- 💧 Moisture – even a small ingress of liquid can cause corrosion and jamming.
Sometimes the curtain stops working after a firmware update, which is because in some versions of MIUI, the camera driver conflicts with the curtain mechanism, which leaves it closed even when you start the application, in which case you first try resetting the camera settings or rolling back the firmware.
If the problem is mechanical, then you can not do without replacing. Fortunately, a new curtain for the Redmi 9 is inexpensive - from 200 to 500 rubles depending on the seller.
What tools will be needed to replace
To carefully disassemble the smartphone and not damage the internal components, prepare the following set of tools:
| Tool. | Appointment | Where to buy |
|---|---|---|
| Plastic mediator (2 units) | For careful slashing of the back cover and disconnection of plumes | AliExpress, electronics stores |
| Cross screwdriver (PH00) | For twisting the screws of the back cover | Any hardware store |
| Tweezers (preferably magnetic) | For easy extraction of small details | Radio shops |
| dryer | To soften the glue under the back cover | Household appliances |
| Double-sided Scotch or B-7000 glue | For fixing the new curtain and back cover | AliExpress, construction stores |
⚠️ Warning: Do not use metal mediators or knives - they can scratch the body or damage the plumes. Also avoid too much heat with a hairdryer: temperature above 60°C can damage the battery.
If you don’t have experience in repairing machinery, we recommend buying a curtain replacement kit that already includes a new part and the necessary tools.
Step-by-step: how to disassemble Xiaomi Redmi 9
The Redmi 9 takes care of itself, as there are many fragile plumes inside.
- Turn off your smartphone and remove it. SIM-card and memory card (if installed).
- Heat the back cover with a hairdryer for 2-3 minutes, keeping it at a distance of 10-15 cm. This will soften the glue and make it easier to remove.
- Insert a plastic mediator into the gap between the back cover and the body (start at the bottom corner where the charging is located). Carefully guide it around the perimeter, separating the cover.
- Unscrew 10 screws that fix the metal plate (use the PH00 screwdriver).
- Unplug the battery plume with a plastic mediator. Don't pull the plume, just the connector!
- Unscrew the screws holding the camera module and gently remove it.
⚠️ Warning: Don't touch the motherboard with your bare hands - static electricity can damage the chips. Use an antistatic bracelet or at least touch a grounded metal object before work.
If the curtain is glued to the camera module, tweez it carefully, usually attached to double-sided tape or a small amount of glue.
Make sure all screws are in place|Check the integrity of the plumes|Clean the case of old glue|Check the operability of the new curtain (it should be freely opened / closed)-->
How to install a new curtain on the camera module
Before installing a new curtain, inspect the camera module for damage. If the lens has scratches or chips, the entire module may need to be replaced.
Installation process:
- Apply a thin layer of B-7000 glue to the curtain attachment site (if it is not on bilateral tape).
- Press the new curtain against the module and hold for 10-15 seconds to make the glue grasp.
- Check the performance: manually open and close the curtain several times, it should move smoothly, without jamming.
- Install the camera module back and lock with screws.
If the curtain is electrically controlled (in some versions of the Redmi 9), connect the plume to the motherboard and check its operation through the camera application. The curtain should automatically open when the camera starts and close when it exits.
⚠️ Note: If the curtain does not open after assembly, check:
- 🔌 Correct connection of the camera module loop.
- 🔧 All screws – untwisted mounts can displace the module.
- 📱 Firmware performance (sometimes helps resetting camera settings to Settings) → Annexes → Camera. → Warehouse → Drop it).
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If the curtain does not open to the end, try to clean its mechanism of dust with a brush or a spray of compressed air.
Build a smartphone after replacing the curtain
The Xiaomi Redmi 9 is assembled in reverse order:
- Connect the battery plume and fix it.
- Set a metal plate and twist all 10 screws.
- Apply a new double-sided tape to the back cover (or use B-7000 glue at the edges).
- Press the lid and warm it up with a hair dryer for 1-2 minutes for better fixation.
After assembly, turn on the smartphone and check:
- 📸 Camera performance (the curtain should open when the application is launched).
- 🔋 Charging and connectors (sometimes during disassembly, contacts are shifted) USB-port).
- 🎧 Operating speakers and microphone (located next to the camera module).
If after the assembly there were foreign sounds (squeaking, crackling), most likely, somewhere left extra screws or plumes are clamped with a lid, in which case you will have to disassemble the smartphone again.
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The key to assembly is not to pull the screws, and excessive force can damage the thread or motherboard.
Frequent mistakes when replacing curtains and how to avoid them
Even experienced craftsmen sometimes make mistakes that lead to new breakdowns, and here are the most common ones:
| Mistake. | Effects of consequences | How to avoid |
|---|---|---|
| Use of the wrong screwdriver | He removes the screws, makes them unsuitable for unscrewing. | Use only PH00 with magnetic tip |
| Heat-heated hair dryer | Melting plastic, battery damage | Keep the hair dryer at a distance of 10-15 cm, the temperature is not higher than 60 ° C. |
| Use of force in removing the curtain | Damage to the camera lens or plume | Use tweezers and plastic mediator |
| Forgetting to turn off the battery plume | Short circuit when working with metal tools | Always turn off the power before disassembly |
Another common problem is that the curtain is snatching after replacement, which means that the mechanism is not sufficiently lubricated or that there is dust in the car.
- Take the curtain back.
- Clean her mechanism with a brush.
- Apply a drop of silicone lubricant to the gears.
- Reset the curtain.
If the curtain doesn't close automatically after you change it, check the camera settings. Some MIUI firmware has the option "Close the curtain when you exit" - it can be turned off.
Where to buy a curtain for Xiaomi Redmi 9 and how much it costs
A new curtain can be bought in several places:
- 🛒 AliExpress - price from 200 before 400 roubles 2-4 Look for Xiaomi Redmi on request. 9 camera shutter".
- 🏬 Spare parts stores for phones - the price 300-500 RUB, but you can get it right away.
- 🔧 Service centers – sometimes sell parts separately (check by phone).
- 📦 Repair kits - include a curtain + tools (price from 600 rubles).
When buying, pay attention to:
- 🔍 Compatible with the model – curtain for Redmi 9 is not suitable for Redmi 9A or Redmi 9C.
- 📦 Set – some sets have spare screws and double-sided scotch.
- ⭐ Seller reviews – avoid stores with a rating below 95%.
If you're not sure about the choice, you can buy a universal repair kit that includes a curtain, glue, mediators and a screwdriver, which will cost more, but eliminate the need to search for tools separately.