How to lock the screen on Xiaomi Redmi 10 during a call: all the ways

Unexpected screen taps during a phone call are a common problem with Xiaomi Redmi 10 users. Touches with the cheek or ear activate speaker, transfer the call to hold, or even complete a call. In this article, we will examine all the working methods of locking the screen on Redmi 10 (including the Redmi 10 2022, Redmi 10C and Redmi 10 Prime models) – from standard proximity sensor settings to hidden MIUI functions and third-party utilities.

The Redmi 10 feature is that it has disabled the classic "Conversation Lock" feature in the latest MIUI, but there are workarounds, and we've tested them on MIUI 12.5-14 firmware. Importantly, some methods require superuser rights, but most work without them. Let's start with the simplest solutions.

1.Access sensor check: why the screen doesn't lock automatically

The main reason for random taps is that the proximity sensor is not working properly. On Redmi 10, it's on the right of the speaker, and it's responsible for turning off the screen when the phone is held to the ear, and if the sensor is contaminated or calibrated incorrectly, the lock doesn't work.

To check his work:

  • πŸ“± Enable dial mode: open the Phone app and dial ##6484## (sensor test).
  • πŸ‘† Raise your hand to the top of the screen – the Proximity sensor bar should change from 5.00 to 0.00.
  • 🧹 If the values do not change, wipe the sensor with a soft wipe (do not use alcohol!).
  • πŸ”„ Reboot your phone – sometimes resetting the sensor’s time errors helps.

If the sensor is working, but the screen is still not locked, the problem may be the MIUI settings.

πŸ“Š How often do you have a screen triggered when you call Redmi 10?
Constantly.
Sometimes.
It used to be, it's not now.
Never.

2. Enable screen locking through MIUI settings (hidden method)

In Redmi 10, the lock screen function is hidden in the MIUI lab to activate it:

  1. Open the Settings. β†’ The phone.
  2. Tap 7 times on the MIUI version until the notification β€œYou became a developer” appears.
  3. Go back to the basic settings and select Additional β†’ For developers.
  4. Find the option β€œScreen lock during calls” and turn it on.

⚠️ Note: Some Redmi 10 firmware (e.g. global firmware) MIUI 13.0.4) this paragraph may not be available, in which case use alternative methods from the following sections.

Check the purity of the proximity sensor

Update MIUI to the latest version

Enable the developer mode

Reboot your phone after the changes-->

3.Use of gestures to force blocking

If the proximity sensor isn't working properly, you can lock the screen manually with gestures. There are two options on Redmi 10:

  • πŸ‘‰ Double tap: Twice tap the screen (not by the icons!) during the call, the screen will go out. To unlock, press the power button.
  • πŸ”„ Swipe down: swipe from the top edge of the screen down (as when opening the notification bar), but don’t let go of your finger – the screen is locked.

To activate these gestures:

  1. Go to Settings β†’ Lock screen.
  2. Select Lock Screen gestures (or Lock Screen gestures).
  3. Enable Double-touch options for locking and Swipe for locking.

πŸ’‘ Useful tip: If gestures don't work, check if they conflict with the settings of the Phone app. Go to your phone's Settings β†’ Call settings β†’ Additionally, and disable the Gesture option during the call (if any).

4. Third-party applications for forced blocking

If standard methods don't work, install specialized utilities. We tested 3 applications that are compatible with Redmi 10:

AnnexFunctionsRoot is required.Reference
Proximity Screen OffLocking the screen when approaching, setting the delay❌ No.Google Play
Gravity ScreenAutomatic locking when lifted to the ear + motion sensor❌ No.Google Play
Screen Off and LockWidget for fast locking, works on top of any applications❌ No.Google Play

πŸ”Ή Recommendation: Gravity Screen is best suited for the Redmi 10 β€” it uses a proximity sensor and an accelerometer to determine when the phone is near the ear:

  1. Open the application and provide all the permissions requested.
  2. Enable the Lock on proximity option.
  3. Select Aggressive Mode for maximum reliability.

⚠️ Note: Some applications (e.g. Proximity Screen Off) may conflict with energy saving settings MIUI. After installation, add them to the Autostart list and Without battery restrictions (Settings) β†’ Annexes β†’ Permits β†’ Auto-start).

5. Locking through the power button (alternative method)

The most reliable, but not the most convenient way is to manually lock the power button. During the call, just press the on/off button once, the screen will go out, and the conversation will continue.

πŸ“Œ Method nuances:

  • βœ… It works on all versions. MIUI free-of-setting.
  • ❌ Requires a free hand – uncomfortable if you hold your phone with your shoulder.
  • ⚠️ On some Redmi 10 firmware, the power button can complete a call with prolonged pressing!

If the power button on your Redmi 10 is broken or is not working properly, use the virtual button:

  1. Activate Settings β†’ Special Opportunities β†’ Home button.
  2. Turn on the Floating Button option and add it to the screen.
  3. Set up the "Screen Lock" action for this button.
What if the power button does not block the screen?
If one click of the power button does not block the screen, check the settings in Settings β†’ Buttons and gestures β†’ Power button. Make sure that the "Block Screen" action is selected for a single tap, rather than "Open Voice Assistant" or another function.

6 Problems After MIUI Update: What to Do

Many Redmi 10 users are faced with the fact that after the MIUI update (especially before MIUI 13 or 14), the screen lock stops working, due to changes in energy saving policy and sensor management.

πŸ”§ How to return the function:

  1. Reset the settings of the phone application: Settings β†’ Annexes β†’ Application management β†’ Phone. β†’ Warehouse β†’ Clear the data ⚠️ It'll remove the call history!
  2. Turn off battery optimization for system applications: Settings β†’ Battery and performance β†’ Battery Consumption Management β†’ Apps β†’ Find Phone and MIUI System Interface β†’ Select No Limits
  3. Return to the previous version of MIUI: If the problem occurred after the update, roll back the firmware through Settings β†’ About Phone β†’ System Update β†’ Three-point β†’ Select the service pack.

Critical information: On MIUI 14 firmware for Redmi 10, the β€œConversation Lock” function in the developer’s lab may not be available due to Xiaomi’s policy of unifying the interface, in which case the only working methods are gestures, third-party apps, or manual button locking.

7. Hardware reasons: when to carry the phone to the service

If none of the software methods helped, the problem could be in the hardware:

  • πŸ”§ Intimacy sensor damaged: Often occurs after falls or moisture. Diagnosed at a service center.
  • πŸ”Œ Screen plume left: Leads to sensor malfunction. Symptoms: screen spontaneously presses, sensor doesn't respond.
  • πŸ”‹ Motherboard malfunction: In rare cases, the sensor control controller is to blame.

πŸ’° Cost of repair:

Problem.Cost (β‚½)Repair time
Replacement of the proximity sensor800–1 50030-60 minutes
Screen plume interlocking1 200–2 0001-2 hours
Diagnosis of the motherboard500–1000 (free for repairs)1-3 days

⚠️ Note: Before visiting the service, make a backup copy of the data through Settings β†’ The phone. β†’ Backup. Some workshops reset the phone to factory settings for diagnostics.

πŸ’‘

If the Redmi 10 screen does not lock when talking even after resetting the settings and cleaning the sensor, there is an 80% probability of a hardware problem.

Frequently asked questions

Can I block the screen on Redmi 10 without root rights?
Yes, most of the methods in this article (gestures, MIUI settings, third-party apps) work without root. The exception is some advanced features in Gravity Screen, but they are not critical to the main task.
Why did the MIUI update stop working?
Xiaomi regularly changes the logic of the sensors in new versions of the firmware, for example, MIUI 13 removed the β€œBlock on conversation” option from the developer’s lab for some models, the solution is to use alternative methods (gestures, applications) or roll back to the previous version of MIUI.
How to check if the proximity sensor is working on Redmi 10?
Enter the engineering code ##6484##, then hold your hand to the top of the screen. The Proximity sensor should change from 5.00 (no obstacle) to 0.00 (there is an obstacle).
Which app is best for locking the screen?
For Redmi 10, we recommend Gravity Screen – it securely locks the screen when approaching the ear and does not conflict with MIUI. The alternative is Proximity Screen Off, but it is less flexible in settings.
Can a screen lock affect the quality of communication?
No, the lock screen (software or hardware) does not affect the communication module. the call continues as normal, and the screen simply turns off to save battery and prevent accidental pressing.