Xiaomi’s working mode: appointment, activation and hidden features

Introduction: Why users confuse working mode with factory mode

The term β€œworking mode” in Xiaomi devices is often a source of confusion, and many people mistaken it for factory reset or recovery mode, but in fact it is a separate feature designed to diagnose and optimize the operation of equipment. Depending on the type of device β€” whether it is a Mi TV, a Redmi smartphone or even a smart speaker β€” working mode can mean different things, but its essence is always related to testing hardware components and checking the stability of the system.

In this article, we will discuss in detail what the working mode is on different Xiaomi devices, how to turn it on (and off), as well as reveal the hidden features of this mode, which the manufacturer does not mention in the official documentation. TV and smartphones, as they have a working mode implemented in different ways.

What is the working mode on Xiaomi TVs

On Xiaomi Mi TVs (A2, P1, Q2, S Pro, etc.), the operating mode is the service state into which the device goes to check the matrix, speakers, HDMI ports and other components. It is often confused with Factory Mode (factory mode), but the key difference is that the working mode does not reset or delete user data.

The main objectives of the regime are:

  • πŸ” Diagnostics of hardware faults (e.g. broken pixels, backlight problems).
  • πŸ”Š Testing of sound at all frequencies and channels.
  • πŸ“Ί Color rendering check and screen calibration.
  • πŸ”Œ Port analysis (HDMI, USB, Ethernet).

Important: the Mi TV mode is activated only through the service menu or a combination of buttons on the remote, and the usual PatchWall or Google TV interface does not.

πŸ“Š Why do you need to work on the Mi? TV?
To check the screen for broken pixels
For sound diagnostics
Fixing problems with HDMI
Just out of interest.
I don't know what it is.

How to enter the operating mode on Mi TV: step-by-step instructions

To enter the working mode on Xiaomi TVs, you will need the original remote control (or compatible with the Menu function).

  1. Turn off the TV with the Power button on the remote.
  2. Press and hold the Menu + Volume Down (-) buttons.
  3. Without releasing the buttons, press the Power once.
  4. Hold Menu + Volume Down for another 5-7 seconds until the service menu appears on the screen.

If the combination does not work, try an alternative method:

1. Turn on the TV.


2. On the remote, press sequentially: Menu β†’ 1 β†’ 1 β†’ 4 β†’ 7.




3. Confirm the entry with the OK button.

Disable all external devices (configures, sound panels)

Record the current screen settings (brightness, contrast)

Connect the TV to 220V network without filters/extensioners

Have a flashlight on hand to check the lights-->

⚠️ Note: Not all Mi models TV It supports the remote mode entry on some TVs (e.g. Mi). TV 4S 55β€²β€² 2020) requires a service cable or Mi Service Tool software.

Working mode on Xiaomi smartphones: myths and reality

Unlike TVs, Xiaomi smartphones (Redmi, POCO, Mi) do not officially use the term β€œworking mode” but are sometimes referred to as:

  • πŸ› οΈ Developer Mode – for debugging and testing.
  • πŸ”§ Safe Mode – Starting a system without third-party applications.
  • πŸ“± Test menu (#4636##) – check sensors and network.

For example, if your Redmi Note 12 is starting to slow down, going to Safe Mode will help determine if a third-party app is to blame.

  1. Press the power button before the turn off menu appears.
  2. Hold your finger at the switch off point.
  3. Confirm the transition to Safe Mode.
What to do if the smartphone is getting stuck in working mode?
If the device doesn’t come out of the test menu or safe mode, perform a forced reboot: 1. Press Power + Volume Up for 10-15 seconds. 2. If it doesn’t work, plug into your PC and use the command: adb reboot

⚠️ Attention: Signing into Developer Mode on Xiaomi smartphones requires unlocking the bootloader, which can lead to loss of warranty and data reset.Do not activate this mode unnecessarily!

Hidden functions of working mode on Xiaomi

The manufacturer does not advertise all the features of the working mode, but experienced users have found several useful features:

The deviceHidden functionHow to activate
Mi TVCalibration of color according to DCIP3 standardPicture β†’ Advanced β†’ Color Space β†’ DCIP3
Redmi Note 11/12Battery test (real capacity)Enter ##4636## β†’ Battery Information
Mi Box SReset HDMI-portIn the working mode: HDMI Reset β†’ Confirm
Mi Band 7Vibration motor testThrough the Mi Fit app (Section Lab Features)

For example, on Xiaomi TVs, you can manually calibrate your white balance in working mode, which is useful for designers or moviegoers.

  1. Enter the operating mode (see the instructions above).
  2. Go to Picture β†’ White Balance β†’ Custom.
  3. Use color patterns to adjust R/G/B Gain.

πŸ’‘

If artifacts appear on the screen after color calibration, reset to factory settings via Settings β†’ Picture β†’ Reset.

Frequent errors in the use of the working mode

Many users make critical errors that can lead to data loss or device failure, and these are the most common:

  1. Interrupting the testing process (e.g. pulling the power cord on the Mi TV while checking the matrix) can cause firmware damage.
  2. Changing unknown parameters in the service menu, for example, setting up Panel Aging on TVs without understanding the consequences, leads to accelerated wear and tear of the screen.
  3. Using unofficial firmware to log in to mode, it's unwarranted and can lock the device.

⚠️ Note: On Xiaomi TVs with Google TV (2022 and later) working mode can block access to Netflix and YouTube before rebooting. DRM.

πŸ’‘

Before entering the operating mode, always record the current settings (photo screen or menu screenshots) to help return the device to its original state if something goes wrong.

How to get out of the working mode: universal ways

Out of operating mode depends on the type of device:

  • πŸ“Ί Mi TV: Press Exit on the remote or press the Power for 10 seconds.
  • πŸ“± Smartphone: Reboot the device or disable Developer Mode in the settings.
  • 🎧 Headphones/columns: Hold the power button for 15-20 seconds.

If the device is in operating mode:

  • For Mi TV: disconnect from the network for 1 minute, then turn it on again.
  • For smartphones: Use the Power + Volume Up combination to force a reboot.

On some Xiaomi models (such as the Mi TV Q1 75), the exit from the operating mode requires the input of a service code. Usually it is 0000 or 1234, but on new devices the code may differ.

Can I turn on the operating mode without the remote on the Mi TV?
Yeah, but it'll take a lot. USB-keyboard or Mi Remote app on your smartphone. Connect the keyboard to your TV through USB And use the Ctrl combination. + Alt + T (on some models) can also be used. ADB-Available from the adb shell input keyevent KEYCODE_MENU adb shell input keyevent KEYCODE_VOLUME_DOWN
Why did the sound on Mi TV disappear after the release of the working mode?
This is a typical problem when testing audio in the service menu. Solution: Go to Settings β†’ Sound. β†’ Reset the sound settings. If it doesn't work, reset to factory settings (Settings) β†’ The device β†’ Reset). ⚠️ Do not change the parameters of Audio DSP In operating mode – this can lead to a software failure.
How to check the battery of Xiaomi smartphone in working mode?
Use the engineering menu: Enter the code ##4636##. Go to the Battery Information tab. Pay attention to the Health (state) and Voltage settings. If the Health value is below 80%, the battery needs to be replaced.
Can I update the firmware in working mode?
No, the operating mode is not designed for updates: πŸ“Ί Mi TV: Settings β†’ About the device β†’ Updating the system. πŸ“± Smartphone: Settings β†’ The phone. β†’ Update MIUI. ⚠️ Trying to flash the device in working mode via Fastboot or Recovery can lead to a breeze (complete inoperability).
Where to download official software to work with the working mode?
For Xiaomi TVs, use the Mi utility TV Assistant (available on the official website). For smartphones - Mi Flash Tool (for firmware only, not for diagnostics!). ⚠️ Avoid third-party programs like Mi Service Tool – they may contain malicious code.