Navigation buttons disabled on Xiaomi: how to return to work

You turned on your Xiaomi TV or smartphone, but suddenly you found that the navigation buttons (or touch keys) stopped responding to presses? This problem can manifest itself in various ways: from a complete lack of response to the hanging of individual controls. Most often, users experience the Back, Home and Recent apps on smartphones or the Menu/Settings keys on Mi TVs become inactive. The causes range from software failures to hardware malfunctions, but in 80% of cases the problem can be solved without going to the service center.

In this article, we will look at all possible scenarios, from basic reboots to deep diagnostics using the engineering menu, and focus on the Redmi and POCO smartphones, as well as Mi TV 4S/5X, where the problem is most common. If the buttons go off after updating the firmware, dropping the device or connecting third-party accessories, here you will find step-by-step instructions with these nuances in mind.

Why navigation buttons can be turned off: the main reasons

Before you start repairing, it’s important to understand what triggered the malfunction, and here are the most common reasons why navigation buttons stop working on Xiaomi devices:

• 🔄 Software failure after update MIUI It's often found on the Redmi Note. 10/11 mi TV Q1/Q2, where new versions of the software conflict with the drivers of touch panels.
• 📱 Activation of gestures instead of the classic buttons. MIUI 12+ mi TV PatchWall has a full-hide navigation bar option that users enable randomly.
• 🔋 Lack of resources: If the device is overloaded with background processes (especially on smartphones with 2-3 GB of RAM), the system can block the processing of pressing.
• 💥 Physical injury: Fall, moisture or wear of the touch film (relevant to buttons on Mi TVs) TV A2 older models).
• 🛠️ Conflict with Launchern. Third-party shells (like Nova Launcher or HyperOS) can intercept button control.

On Xiaomi TVs, the problem is often related to a remote lock or a failure in the IR Blaster module. If the buttons on the remote are working and the touch buttons on the TV body are not, either the driver or the hardware is to blame. On smartphones, a hard button shutdown can indicate damage to the display plume (typical for the Redmi 9A/9C after changing the screen).

⚠️ Note: If the buttons stopped working after installing custom firmware (for example, LineageOS or Pixel Experience), the problem lies in the incompatibility of the kernel. MIUI.

Diagnostic methods: how to determine the cause of malfunction

Before you reset your settings or disassemble your device, do a simple diagnostic that will help narrow down the possible causes.

For smartphones Xiaomi/Redmi/POCO:

1. Check if gestures are activated. Go to Settings → Display → Navigate system. If Gestures are selected, go back to Buttons.
2. Run Safe Mode (hold the power button → Safe Mode) If the buttons are triggered, the third-party app is to blame.
3. Connect the device to the PC and execute the command to ADB: adb shell settings get secure sysui_nav_bar If the result 1 — The navigation bar is disabled at the system level.

For Mi TVs:

• 🔍 If the remote is working and the touch buttons are not, the problem is the touchpad.
• 📺 Switch to another signal source (HDMI, AV). Sometimes the failure occurs in only one mode.
• 🔌 Shut the TV off the network for 5 minutes. This will reset the cache of the control module.

Software Solutions: Recovery Without Resetting

If the diagnostics show that the problem is not hardware, try the following methods: they are suitable for most devices and do not require special skills.

1. Restart in Safe Mode

Safe mode disables all third-party applications, which helps to identify conflicting software:

1. Hold the power button until the menu appears.
2. Press and hold the option to Turn off → confirm the transition to safe mode.
3. Check the buttons. If they work, delete the apps one at a time, starting with the last ones installed.

2.Resetting launcher settings

On Xiaomi smartphones, a launcher (MIUI Launcher or POCO Launcher) crash can block the navigation bar to reset it:

1. Go to Settings → Applications → Application Management.
2. Find Launche → Storage → Clear the data.
3. Reset the device.

3. Recovery through ADB (for Advanced)

If the buttons are disabled at the system level, they can be returned by the command:

adb shell settings put secure sysui_nav_bar 0

Once done, restart the device. This method only works on unlocked bootloaders and requires USB debugging enabled.

Hardware malfunctions: when without repairs can not do

If the software methods didn't work, the problem could be hardware. Here are the typical hardware causes and their signs:

• 🔧 Display plume damage (smartphones) Symptoms: buttons don't work, but the sensor responds to touch, often after changing the screen to Redmi 8/9.
• 💧 Contact oxidation (TVs) If the TV has been exposed to moisture, buttons may be switched off periodically.
• 🔌 Touch panel controller malfunction. Mi TVs. TV 4A The controller often fails after 3-4 years of operation.

To diagnose hardware problems:

1. Try tapping the area around the buttons (for smartphones) or tapping the TV body, and if the buttons go off, it's bad contact.
2. Connect the external keyboard via Bluetooth or USB, and if it works and the buttons don't, the problem is the touch module.
3. Check the device for overheating. Use the CPU Monitor app (for smartphones) or an infrared thermometer (for TVs), and overheating can block the controller from working.

⚠️ Note: If you suspect damage to the plume on your smartphone, do not try to disassemble the device yourself - Xiaomi often uses adhesive joints that are easily damaged".

Features for Mi TVs: button recovery

On Xiaomi TVs, navigation buttons can be turned off due to PatchWall firmware failures or remote control issues.

1.Du remote reset

If the buttons on the TV body do not work, but the remote also stopped responding:

1. Remove the batteries from the remote for 30 seconds.
2. Press and hold Menu + OK simultaneously for 10 seconds.
3. Insert the batteries back and try to sync the remote again (press Menu + Home for 5 seconds).

2. Update the firmware via USB

If the TV does not respond to buttons and does not connect to Wi-Fi:

1. Download the latest firmware for your model from the Xiaomi Support website.
2. Unpack the archive and copy the update.zip file to the flash drive (FAT32).
3. Put the flash drive in the TV, hold the Menu + Input on the case, and turn on the power, and the upgrade process will begin.

3. Activation of the engineering menu

To diagnose the touch panel:

1. Turn off the TV, then hold the Menu on the case and turn on the power.
2. In the engineering menu, select Key Test and check the response of each button.
3. If the buttons are not displayed in the test, you need to replace the touch panel.

💡

On Mi TV Q1E and later, navigation buttons can be turned off when the voice assistant Xiao AI is activated. To return them, say “turn off voice control” or press the microphone on the remote and say “return buttons”.

Prevention: How to avoid repeated failures

To ensure that the navigation buttons do not turn off in the future, follow these guidelines:

• 📲 Update regularly, but avoid beta versions MIUI — They often contain control bugs.
• 🔄 Clean the cache once a month through Settings → Warehouse → Cleanup.
• 🛡️ Use magnetless covers – they can affect the operation of touch panels.
• 💾 Discard third-party launchers if you notice lags in navigation.

For TVs:

• 📺 Avoid frequent switching between sources (HDMI/TV) — It wears out the button controller.
• ⚡ Use a voltage stabilizer to protect your TV from power surges.

💡

If the navigation buttons are turned off after connecting Bluetooth devices (keyboard, gamepad), turn them off and restart the device. Input profile conflict is a common reason for blocking touch elements.

FAQ: Answers to Frequent Questions