The dark screen on Xiaomi smartphones is one of the most common problems users face: in some cases, it is a MIUI bug, in others it is a result of mechanical damage, and sometimes it is simply turned on power saving mode. If your Redmi, POCO or Mi suddenly stopped displaying a picture normally, do not rush to bring it to the service: in 80% of cases, the problem can be solved by yourself.
In this article, weโll look at all the possible causes of a dark screen, from a banal nighttime onset to serious hardware malfunctions. Youโll learn how to tell a software glitch from a matrix breakdown, what MIUI settings are responsible for brightness, and what to do if the phone doesnโt respond to touch. Instructions are suitable for all current models, from the budget Redmi Note 12 to the flagship Xiaomi 14 Ultra.
1. Check the basic brightness and dark theme settings
Before you panic, make sure that the problem is not with standard system settings. Often users accidentally activate modes that make the screen dim or completely dark.
Open the notification curtain and check the following parameters:
- ๐ Automatic brightness: If it's on, the phone can lower the backlight itself in dark rooms. Try turning it off and manually set the brightness to the lights. 70-80%.
- ๐ Dark subject: in MIUI It can be activated on a schedule (for example, from 22:00 to 7:00). โ Screen. โ Dark subject.
- ๐ Power saving mode: low battery power, the system limits the brightness of the screen. Connect the charge and see if the normal display returns.
If the notification curtain doesn't open or the screen only responds to physical buttons, try rebooting your phone with a long press on the power button (10-15 seconds).
2.The black screen after the MIUI update: how to fix
One of the most frustrating situations is when the screen becomes dark after a firmware update, a typical MIUI bug that is especially relevant for beta versions or unstable builds, most often the problem occurs on the POCO F5, Redmi Note 11 Pro+ and Xiaomi 13T models.
Here's what we can do:
- Hard reboot: Press the power button + turn up the volume for 20-30 seconds until the phone vibrates and reboots. This will reset the temporary system files.
- Reset screen settings: If the phone turns on but the screen remains dark, go to Settings โ System โ Reset settings โ Reset screen settings.
- Firmware rollback: If the problem appears after the update, go back to the previous version via Settings โ About Phone โ MIUI Update โ Three Points โ Select the Service Pack.
If the screen is not only dark after the update, but also does not respond to touch, the display drivers are likely to have flown off, in which case only flashing through Fastboot (instructions in the next section) will help.
What if the phone doesnโt turn on after the upgrade?
3. Hardware causes of dark screen: how to diagnose
If the software methods didn't work, the problem could be the hardware, and here are the most common hardware malfunctions that lead to a dark screen:
| Reason. | Symptoms | Decision |
|---|---|---|
| Damage to the display plume | The screen flashes, stripes appear, the reaction to touches partially disappears | Replacement of the plume (cost 1,500โ3,000) โฝ) |
| Backlight failure | The image is visible only under bright light (as on a monitor turned off) | Replacement LED-lighting or the entire matrix |
| Battery problems | The screen dims when charging is turned off or when the charge is low. | Battery replacement (from 1,000) โฝ) |
| Oxidation of contacts after moisture | Artifacts on the screen, spontaneous reboots | Cleaning the board with ultraviolet light or replacing damaged components |
To see if the matrix is to blame, hold the phone to a bright light source at a 45ยฐ angle. If you see a weak image of the interface, the backlight is a problem. If the screen is completely black, the plume or the matrix itself is likely to be faulty.
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If the phone falls or gets wet, don't turn it on right away! let it dry for at least 24 hours in a dry place (like rice or silica gel).Attempting to turn it on can short-circuit and permanently kill the display.
4.How to reflash Xiaomi if the screen isn't working
If the dark screen came after a failed update or reset, forced flashing via Fastboot or Recovery can help, this method is suitable even if the display does not respond to touch, but the phone is determined by the computer.
You'll need:
- ๐ฅ๏ธ Computer with installed Xiaomi drivers (official website)
- ๐ Original. USB-cable (better from the set)
- ๐ฑ Firmware for your model (download only from official sources!)
Instructions for Fastboot:
- Turn off the phone (press the power button + volume up for 10 seconds).
- Press Power + Volume Down to enter Fastboot.
- Connect your phone to your PC and start the Mi Flash Tool.
- Select the downloaded firmware (file with.tgz extension) and click Flash.
If the screen doesnโt even turn on in Fastboot, but the phone vibrates when connected to charging, try a blind reset via Recovery:
- Press Power + Volume Up to Enter Recovery.
- Despite the dark screen, consistently press: 1 Volume down (select Wipe Data) 1 Power (confirmation) 3 Volume down (choice Yes) 1 Power down (reset)
Download firmware for your model from the official website
Install Xiaomi drivers on PC
Charge your phone at least 50%
Prepare original USB-cable (do not use cheap substitutes)
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5 Dark screen when calling or in specific applications
Sometimes the screen doesnโt completely dim, but only in certain situations:
- ๐ During calls: check the proximity sensor settings in Settings โ System system โ Sensors. If the sensor is contaminated, the phone will think you've brought it to your ear, and turn off the screen.
- ๐ฎ In games or videos, some applications (for example, PUBG Mobile or YouTube may conflict with your energy saving settings. Add them to the exceptions in Settings โ Battery โ Optimizing the battery.
- ๐ When blocking: If the screen goes out immediately after locking, check the waiting time in Settings โ Screen. โ Sleeping mode.
If the problem only occurs in one application, try:
- Clear the app cache in Settings โ Apps โ [App name] โ Memory โ Clear the cache.
- Update the application to the latest version.
- Turn off automatic optimization in the battery settings.
Important: If the dark screen only appears when you connect to Bluetooth devices (headphones, watches), the problem may be in the A2DP profile. Try resetting Bluetooth settings to Settings โ Connections โ Bluetooth โ Three dots โ Reset settings.
6.When to contact the service: signs of a serious breakdown
Not all screen problems can be solved by yourself, but here are the red flags that you should immediately contact the service center:
- ๐ฅ The screen is cracked or broken, but the phone is working - this is a sign of the imminent failure of the plume.
- ๐ก๏ธ The phone overheats when the screen is turned on (may indicate a short circuit in the matrix).
- ๐ After a fall or impact, the screen flashes different colors (damage to the display controller).
- ๐ The battery is swollen (seemingly on the bloated back cover) - it is life-threatening!
The cost of screen repair on Xiaomi depends on the model:
- Redmi Note 10/11: 3 000โ5 000 โฝ (matrix-replacement + touchscreen)
- POCO X4/X5: 4 000โ6 000 โฝ
- Xiaomi 12/13: 8 000โ12 000 โฝ (because AMOLED-matrix)
- Xiaomi 14 Pro: 15 000โ20 000 โฝ (spare parts)
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If the phone is warranty, DO NOT disassemble it yourself! Opening the case will void the Xiaomi warranty. Contact the official service center with the check and box.
Before visiting the service, it is necessary to:
- Back up your data via Mi Cloud or ADB (if the phone is still on).
- Check whether the service uses original parts (in informal matrices often poor color reproduction).
- Check out the reviews about the workshop - many "repairers" put used displays with AliExpress.