You turned on a Xiaomi smartphone and found a mysterious circle on the screen โ white, black or translucent? It does not disappear when scrolling, prevents you from clicking on icons and spoils the entire user experience. 10/11/12, POCO X3/X4, Mi 11/12 And even the new Xiaomi. 13/14. V 80% In some cases, it can be solved independently without visiting the service center.
The causes of the mug range from software failures to hardware malfunctions, most often to blame:
- ๐ Incorrect calibration of the sensor after a drop or update MIUI
- ๐ฑ Damage to the matrix (especially after impacts or moisture intrusion)
- ๐ฅ๏ธ Failure in the graphics driver (typical for devices on Snapdragon) 8xx)
- ๐งฉ Conflict with the shell MIUI after installing custom themes or launchers
In this article, 7 proven methods of eliminating the mug on the Xiaomi screen, from simple (reboot) to radical (reset to factory settings), we also analyze when a problem requires the intervention of specialists and how much it will cost.
1. Diagnostics: What circle is your Xiaomi?
Before you start repairing, identify the type of artifact that will help narrow down the possible causes:
| Type of mug | Appearance | Probable cause | Can I eliminate it on my own? |
|---|---|---|---|
| White translucent | A bright spot with blurred edges, visible against a dark background | Damage to the matrix backlight or driver failure | Yes (methods 2, 4, 6) |
| Black opaque | Dark spot, unresponsive to touch | Physical damage to the matrix or detachment of the plume | No (screen replacement required) |
| Colored (red/green) | Bright spot with clear boundaries | Broken pixels or a failure in the graphics processor | Yes (methods 3, 5) |
| Migratory (moving) | The circle follows the finger or appears at touching points. | Failure of the sensor layer (digitzer) | Partially (method 7) |
If the circle doesn't respond to touch and is visible even on the boot screen, it's a hardware problem. If it disappears after the reboot or changes position, it's probably the software's fault.
- Go to Settings. โ The phone. โ All specifications
- Tap 5 times on the item Version MIUI (Developer mode activated)
- Back to Settings โ Additionally. โ For developers
- Select the Sensor Test and check if the circle is displayed on the test screen.
Programming methods: reboot and calibration
Start with the simplest ways โ they help 30% of the time and donโt require special skills.
Forced reset
If the circle appeared after updating or installing the application, a hard rebut will help:
- ๐ Press the power button. + Increase volume by 10-15 seconds
- ๐ฑ Wait for the vibration and appearance of the Xiaomi logo
- ๐ After downloading, check if the circle has disappeared.
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If the smartphone does not respond to the buttons, connect it to charging for 5 minutes - sometimes this will unlock the "hung" screen.
Calibration of the sensor through the engineering menu
Incorrect calibration often causes ghostly touches or artifacts, and can be corrected through a hidden menu:
- Call the phone combination in the app: ##6484##
- Choose the Test Mode โ Touch Screen Test
- Take the test by following the instructions on the screen
- After completion, restart the device
โ ๏ธ Warning: Do not click on other items in the engineering menu โ this can cause a failure in the communication module or camera.
Resetting sensor settings
If calibration does not help, reset the sensor settings to factory:
- Go to Settings โ System โ Resetting settings
- Select Reset Input Settings (not to be confused with a full reset!)
- Confirm the action and restart the smartphone
Make sure the battery is 50%+ charged.
Save important data (photos, contacts)
Remember the passwords from the accounts
Disable two-factor authentication in your Mi Account
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3. Software Update: Bug Correction MIUI
The circle on the screen can be the result of a bug in the firmware. Xiaomi regularly releases patches for such problems - check for updates:
- Open Settings โ About the phone โ System update
- Click Check Updates and wait for the search to be completed.
- If a new version is available, download and install it.
If automatic updates donโt help, try manual installation:
- ๐ฅ Download the latest stable firmware for your model from new.c.mi.com
- ๐ Move the file to the root folder of the device (not to the folder!
- ๐ Go to Settings. โ The phone. โ Updating the system โ Three points. โ Select a firmware file
โ ๏ธ Note: Installing firmware via Fastboot or Recovery may result in a bootloader lock if the device is tied to a Mi Account!
What to do if the update is suspended?
4.Plant-back to factory settings: a radical solution
If the circle is left after all the manipulations, the last software method is a complete reset, it will delete all the data, but return the smartphone to a "clean" state.
Instructions for MIUI 12/13/14:
- Make a backup through Settings โ About Phone โ Backup
- Go to Settings โ About the phone โ Reset settings
- Choose to erase all data and confirm the action
- After restarting, set up your smartphone as new
If your smartphone does not respond to touch, use a hardware reset:
- ๐ Turn off the device.
- ๐ Squeeze the power. + Loudness up before the Mi Recovery logo appears
- ๐ฑ With the volume buttons, select Wipe Data โ Wipe All Data
- ๐ Confirm the choice of the power button
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The factory reset removes all data, including photos, messages and installed applications, and if the circle is left behind after this procedure, it is a hardware problem and requires repair.
5. Hardware malfunctions: when without service can not do
If none of the software methods worked, the reason for the bubble is the hardware.
Damage to the matrix or plume
Symptoms:
- ๐ด Black circle, does not respond to touch
- ๐ฑ You can even see it on the boot screen (bootlogo)
- ๐ฅ Appeared after falling or getting moisture
Solution: Replace the screen or reconnect the plume, average cost of repair:
- ๐ฐ Replacement of the matrix: 3000-8000 โฝ (model-wise)
- ๐ฐ Repair of the plume: 1,500โ3,000 โฝ
5.2. Failure of the sensor layer (digitzer)
Symptoms:
- ๐ The circle follows a finger or stylus
- ๐ฑ๏ธ The screen responds to late touches
- ๐ฒ There are "ghost" presses.
Solution: Touchscreen replacement or total display replacement, sometimes by flashing the touchscreen through the screen. SP Flash Tool, but it's a temporary solution.
Problems with the graphics processor
Symptoms:
- ๐จ A circle of color (red, green, blue) with clear boundaries
- ๐ฅ๏ธ Artifacts appear in games or when watching videos
- ๐ฅ The device is overheating.
Solution: diagnosis GPU If the problem is confirmed, it will require re-sweetening of the chip (cost starting from 5,000). โฝ) or replacement of motherboard.
| Type of malfunction | Average cost of repairs (โฝ) | Duration of repairs |
|---|---|---|
| Replacement of the matrix | 3 000โ8 000 | 1-2 days |
| Repair of the plume | 1 500โ3 000 | 1 day |
| Replacement of touch glass | 4 000โ10 000 | 2-3 days |
| Supplier GPU | 5 000โ12 000 | 3-5 days |
6.Temporary solutions: how to use a smartphone with a mug
If repairs are delayed and a smartphone is needed urgently, use these life hacks:
6.1 Hiding the circle through accessibility settings
You can โdisguiseโ the artifact by using color inversion or reading mode:
- Go to Settings. โ Special facilities โ Color mode
- Include Color Inversion or Shades of Grey
- Cut the brightness to a minimum - this will reduce the visibility of the circle
6.2. Use of gestures instead of touching
If the circle prevents you from pressing the icons:
- ๐ Activate navigation gestures in Settings โ Display. โ Navigation panel
- ๐ฑ๏ธ Connect Bluetooth mouse via Settings โ Connected devices
- ๐ฎ Use a gamepad with support OTG (For example, Xiaomi Game Controller)
Transfer the interface to the "clean" area of the screen
V MIUI You can move the desktop so that the circle does not interfere:
- Click the empty space on the main screen โ Screen settings
- Select Change the size of the grid and reduce the number of icons
- Move frequently used apps to the bottom of the screen
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If the circle appeared after the fall, do not shake or knock on the smartphone - this can aggravate damage to the plume or matrix.
7. Prevention: how to avoid the appearance of a mug in the future
To avoid recurring problems, follow these guidelines:
- ๐ก๏ธ Use a cover and protective glass (especially for models with a AMOLED-screens, for example, Xiaomi 12T or Redmi K50)
- ๐ Avoid overheating โ do not play heavy games when charging
- ๐ง Do not use your smartphone in wet conditions (even if it has protection). IP53)
- ๐ Update regularly MIUI โ In new versions, bugs with display are corrected
- ๐ฑ Do not install custom firmware without a backup
If you drop your smartphone frequently, consider a model with a protected screen:
- ๐ฑ Xiaomi 13T Pro (CrystalRes display) AMOLED Protected by Gorilla Glass Victus)
- ๐ฑ POCO F5 Pro (Flow screens) AMOLED impact-resistant)
- ๐ฑ Redmi Note 12 Pro+ (tempered glass and aluminum case)