When the back, home and menu buttons suddenly disappear on the Xiaomi Redmi 4X screen, it can take anyone by surprise, and the device becomes a “brick” that becomes almost impossible to control, and panic increases with every second of downtime. Most often, the problem is not a hardware breakdown of the screen, but a software failure of the MIUI shell or an accidental change in the interface settings.
Owners of this popular budget smartphone often find that the system, after updating or restarting, goes into gesture control mode, hiding the usual virtual keys. Sometimes the culprit is a suspended system process SystemUI, which stops drawing navigation elements on top of running applications. Fortunately, in most cases, you can restore the functionality by software methods without going to the service center.
In this article, we will look at all the possible causes of buttons disappearing in detail and propose step-by-step algorithms for returning them. We will look at both standard settings and hidden engineering menus that allow you to reanimate navigation even in difficult situations. A critical step is often a complete reboot of the graphics shell, rather than just turning off the screen with the lock button.
Diagnostics of the problem: why the control panel disappeared
The first step is to understand the nature of the crash, because it depends on the solution method. On Redmi 4X, running Android versions 6.0 or 7.0 with a MIUI shell, the disappearance of the buttons is often associated with the activation of Full Screen mode for specific applications, in which case the system automatically hides the navigation bar to expand the useful area of the display for watching videos or games.
However, if the buttons are missing on the desktop and all menus, it is a global failure.This can be caused by damage to the cache of system fonts or theme. Design themes downloaded from third-party sources or unofficial directories often contain errors in the code that conflict with standard elements of the MIUI. Deleting a recently installed theme can instantly solve the problem.
It's also worth considering the possibility of mechanical damage to the display plume, although on the Redmi 4X this happens less often than software glitches. If the touchscreen responds to touch in other areas, but ignores the bottom of the screen where the buttons should be, this is an alarm, in which case software methods may not help, and you will need to diagnose the hardware.
⚠️ Note: If the screen is completely black, but the phone is making notification sounds or vibrating when called, the problem may be a matrix or plume breakdown, not software.
Basic settings: a return to classic navigation
The easiest and most common way to do this is to check your navigation type settings. In modern versions of MIUI, which could have been installed on the Redmi 4X automatically, the default is gesture control. To return the buttons, you need to go to the settings menu, which you can swipe from top to bottom to open the notification curtain and select the gear icon.
In the menu that opens, you'll find the Additional Settings section, and this is where the key switch controls the bottom panel view, and the path may vary slightly depending on the firmware version, but the logic remains the same: you're looking for a navigation or button item.
- 📱 Go to Settings. → Additional settings → Full screen mode.
- 🔘 Select the button option instead of "Swipe" or "Gestural".
Once you select Button mode, the panel should appear instantly. If this does not happen, you may need to restart the device. In some cases, the system requires confirmation of changes, which can be hidden if the interface is frozen, then forced reboot by pressing the power button for 10-15 seconds will help.
☑️ Checking the navigation settings
Use of engineering menus and codes
For more in-depth diagnosis and correction of interface errors on Xiaomi Redmi 4X You can use the engineering menu, and it's a hidden part of the system that's designed to test hardware and software components, and it's accessed through a set of special components. USSD-code in the appendix "Telephone".
Enter the code ##6484## or ##4636##. If the first code doesn't work (as it's changed on some global firmware), try the second. In the CIT (Customer Integration Test) menu that opens, you can check the touchscreen response. Select Touchpanel and swipe the grid. If the bottom cells don't light up, the hardware problem is.
##6484## - the main code for entering the CIT menu
#4636## - Alternative test menuAlso in the engineering menu, sometimes resetting the sensor calibration helps. Find Touchpanel and select the reset or recalibration option. Once the procedure is complete, the phone may suggest a reboot. This action is safe for personal data, but returns factory-like sensory settings.
⚠️ Warning: Do not change the settings in the Radio or Network engineering menu unless you are sure of their purpose.
Resetting settings via Recovery Mode
If the software failure is so deep that you can’t even get into the settings, you’ll have to use Recovery Mode. On Redmi 4X, this mode is entered by a combination of physical buttons when the device is off, which will allow you to clean the cache or completely reset the data.
To enter, press Volume+ and Power at the same time. Hold them until the Mi logo appears, then release the power button, but keep the volume up until the Recovery menu appears. The navigation is done with volume buttons, and the selection is done with the power button.
| Action. | Control button | The result |
|---|---|---|
| Up/down movement | Volume +/- | Selection of the desired menu item |
| Confirmation of choice | Power (Power) | Starting a selected operation |
| Getting out of the regime | Reboot (via menu) | System restart |
| Clearing the cache | Wipe Cache | Delete temporary files without losing data |
It is recommended to try the Wipe Cache option first. This is safe and often eliminates system file conflicts that interfere with the display of buttons. If this does not work, you will have to take the radical step of Wipe All Data. Remember, this step will delete all your photos, contacts and applications, returning the phone to the factory state.
Resolving Conflicts of Themes and Third Party Software
Third-party launchers or themes are a common cause of buttons disappearing on Xiaomi Redmi 4X. If you have recently installed a new launcher (for example, Nova Launcher, Lawnchair) or downloaded a theme from an unverified source, the problem is most likely in them. MIUI aggressively optimizes background processes and can kill the process of rendering buttons due to resource conflict.
To fix this, you need to remove the problem app. If the buttons don't work, use the Google Assistant voice assistant or the built-in "Mi AI." Say "Delete the Themes app" or "Open app settings." Voice control often works even when the touch interface is broken.
- 🗣️ Activate Google Assistant with a long home button (if it works) or a voice command, OK Google".
- 📲 Say the command: "Open application settings".
- 🔍 Find the "Themes" app or installed launcher in the list.
- 🗑️ Click on “Delete” or “Stop”, then “Apply the standard theme".
Once the conflicting software is removed, you need to restart the device. The standard MIUI theme should be restored automatically, and the navigation buttons will return to their places. If you used a custom launcher, try resetting its default settings or temporarily disabling it to check the impact on the system.
⚠️ Note: When removing the system application "Themes" through ADB or other advanced methods can disrupt the integrity of the shell MIUI. Use only standard removal through settings.
Alternative management methods and conclusion
If none of the above methods helped to return the buttons to the Redmi 4X, you can use alternative navigation methods. In the special settings (Advanced settings → Special features), there is a function of "Floating button" or "Quick Ball", which creates a virtual button anywhere on the screen that duplicates the functions of "Home", "Back" and "Menu".
This is a great temporary solution, which allows you to use your smartphone comfortably before you visit the service or completely reset, so that the floating button can only appear when you unlock the screen or work constantly, and this bypasses the problem of a broken lower bar of the screen.
In conclusion, the navigation button problem on the Xiaomi Redmi 4X is most often software-solvable.Sequal checking of settings, clearing the cache and removing conflicting themes allows you to restore full control. However, if the screen stopped responding to touches at the bottom even in Recovery mode, this is a direct indication of the need to replace the display module.