Main Menu on Xiaomi: what to do after login - all possible actions and solutions to problems

You opened Main Menu on a Xiaomi device — a TV, a smartphone, or another gadget — and you don't know what to do next? This hidden partition (sometimes called Engineer Mode or Service Menu) gives you access to advanced settings that the manufacturer usually hides from the average user. Here you can fine-tune the image, sound, network, or even "resuscitate" the device after a crash. But careless actions can lead to a loss of warranty or breakdown — so it's important to understand why you came here and what you're going to change.

In this article, we’ll look at all possible scenarios, from basic diagnostics to deep customization, and learn how to safely test hardware components, update firmware manually, or reset to factory settings without risking the Xiaomi Mi. TV, Redmi Note or POCO And if you've already changed something and the device is acting strangely, at the end there's a section that solves typical problems.

What is Main Menu on Xiaomi and why is it necessary?

Main Menu (or Factory Menu) is a service menu designed for engineers, testers and service centers, and is available on most Xiaomi devices, including:

• 📺 Televisions (Mi) TV A2/A3/A5, Redmi Smart TV)
• 📱 Smartphones (Xiaomi) 13/14, Redmi Note 12/13, POCO F5/X5)
• 💻 Laptops (Xiaomi Book Pro)
• 🎧 Headphones and smart watches (Xiaomi Watch) S3)

This menu can be used to:

• 🔧 Check the performance of hardware components (screen, speakers, camera, sensors).
• 📊 Get detailed information about the system (firmware version, serial number, working time).
• ⚡ Manually update or roll back the firmware (including if the OTA update has hung).
• 🔄 Reset to factory settings if the device does not respond to standard methods.
• 🎛️ Configure hidden image/sound parameters (e.g., color temperature at matrix level).

⚠️ Attention: Changes in certain parameters (e.g, EDID On TVs or Baseband on smartphones, you can experience some instability or even loss of network connectivity. If you are unsure of your actions, back up your data before logging in to Main Menu.

How to get to Main Menu on different Xiaomi devices

The way you log in depends on the type of device. Below are the current combinations for 2026 (checked on the latest versions). MIUI Google TV).

📺 Xiaomi TVs (Mi) TV, Redmi Smart TV)

There are two working methods:

1. Using the remote: Press sequentially: Menu → Settings → All Settings → General → About → Microbutton "OK" 5 times. If it doesn't work, try holding the Menu. + Volume Down 10 seconds.
2. Through ADB (For the first time, adb shell am start -n com.android.tv.settings/.deviceinfo.DeviceInfoSettings You'll need a debugging switch on. USB and a computer with Android installed SDK.

📱 Smartphones and tablets (MIUI)

The most reliable way:

1. Open the Phone app.
2. Enter the combination: ##4636###.
3. Choose Testing Menu or Engineer Mode.

In some models (POCO F5, Redmi K60) You may need to enter a password: 1234 or 3698.

💻 Xiaomi laptops

On Xiaomi Book Pro and other models, the entrance is through BIOS:

1. Turn off the laptop.
2. Hold on. F2 or Del when switched on.
3. In the Advanced menu, find Hidden Menu (also known as Engineer Mode).

💡

If the device does not respond to key combinations, try connecting the keyboard to USB — On some Xiaomi TVs, the service menu is opened only with its help.

Main Menu sections and their purpose

The Main Menu interface varies depending on the model, but most Xiaomi devices have a similar structure. TV A5 Redmi Note 12).

On Xiaomi TVs, there are often additional items:

• HDMI EDID — compatibility settings with external devices (when changing, the sound / picture may disappear).
• Backlight - adjusting the brightness of the backlight (the risk of overheating the matrix at maximum values).
• CSC — correction of color space (incorrect settings will lead to distorted colors).

💡

Do not change the parameters in the sections. DDR Test, eMMC Test or CPU Stress tests are memory and processor tests that can cause chips to overheat or damage.

What to do in Main Menu: step-by-step instructions for different tasks

Depending on the purpose, your actions will differ. Below are proven scenarios with explanations.

🔍 Diagnosis of malfunctions

If the device is glitching (for example, the sound is missing or the screen flickers), do:

Testing of the matrix (Panel Test)|Testing of the speakers (Audio Test)|Sensor Testing (Sensor Test)|Viewing error logs (Error Log)-->

For example, if you're on Mi TV no image:

1. Go to Panel Test → Backlight.
2. If the backlight is working (the screen is glowing white), the problem is in the matrix or plume.
3. If the lighting is not turned on, the power supply is defective or LED-driver.

⚡ Manual firmware update

If the OTA update has been suspended or the device does not see new versions:

1. Download the firmware for your model from the official Xiaomi website (Support section).
2. Unpack. ZIP-archive and place the file update.zip to the root of the flash drive (for TV) or internal memory for smartphones).
3. In Main Menu, select Update → Local Update.
4. Specify the path to the file and confirm the installation.

⚠️ Warning: Don't pull out the flash drive or turn off the device during the process. On Xiaomi TVs, an interrupted update may result in loss of access to the device. HDMI-port.

⚙️ Fine image/sound tuning

To improve the picture on the Mi TV:

1. Go to Picture. → Advanced.
2. Turn off Dynamic Contrast (Dynamic Contrast spoils the details in dark scenes).
3. In Color Temperature, choose Warm for more natural shades.
4. In Sharpness, set the value 0 (excessive sharpness adds artifacts).

For smartphones (Redmi/POCO):

• In Display Test, you can calibrate the color profile under sRGB or DCIP3.
• In Audio Tuning – set up an equalizer for headphones.

🔄 Resetting settings to factory

If the device brakes or does not respond to commands:

1. In Main Menu, select Reset. → Factory Reset.
2. Confirm the action (a password may be required).
3. Wait for the reboot (on TVs it takes 3-5 minutes).

⚠️ Note: On Xiaomi smartphones, a Main Menu reset deletes all data, including files in internal memory (as opposed to a standard reset in settings where photos sometimes remain).

Common Mistakes and How to Fix Them

Even experienced users sometimes face problems after changes to Main Menu, and these are the most common scenarios and solutions.

🚨 The device does not turn on after discharge

If the screen is black after Factory Reset:

• 🔌 Turn off the power for 30 seconds, then turn it on again.
• 📥 Try flashing the device through Fastboot (for smartphones) or USB Burning Tool (for TVs).
• 🔧 If it doesn’t help – a problem in the hardware (for example, the memory connector is damaged).

🔊 The sound disappeared after changing the settings

Frequent problem on the Mi TV post-edit HDMI EDID Or Audio Output:

1. Return to Main Menu and reset the audio settings to default (Audio) → Reset).
2. If the sound is only through HDMI — Check the cable and port (contact may be damaged).
3. On smartphones, restart the device - sometimes the audio driver "hangs" after tests.

📺 The screen flickers or shows artifacts

This may be caused by:

• Incorrect settings Backlight or Gamma.
• Damage to the matrix (if the artifacts are static).
• Failure in the graphics processor (on smartphones).

Decision:

1. Reset the image settings in Main Menu.
2. If it doesn’t help, update the firmware.
3. On TVs, check the cables and connectors (especially if flickering appears when the picture moves).

The hidden features of Main Menu, which few people know

Besides the standard features, Main Menu has a few “features” that can be useful:

🎮 Developer mode for TVs

On Mi. TV Google TV:

1. Go to the Settings → About → Build.
2. Click Build 7 times until the Developer Mode Enabled message appears.
3. Return to Main Menu – now there will be a section of Developer Options with advanced settings ADB and debugging.

🔋 Battery test on smartphones

In the Battery Test you can see:

• The actual battery capacity (compare with the passport).
• Number of charging cycles.
• Battery temperature in real time.

If the capacity fell below 70% of the nominal value, it is time to change the battery.

📡 Hidden settings of Wi-Fi and Bluetooth

In the Network Test section:

• You can force the Wi-Fi region to change (it is useful if the device does not see 5 GHz).
• Enable debugging logs to diagnose connection problems.
• On smartphones, test the speed and stability of the connection.

💡

On Xiaomi TVs on Network → Advanced can be manually specified DNS (For example, 8.8.8.8) if the standard settings do not work.

Security: How not to break the device

Main Menu requires caution, and follow these rules to avoid problems:

• 📝 Backup before any changes (on smartphones – via Mi Cloud or adb backup).
• 🔍 Do not change the parameters at random - if you do not know what the item is responsible for, it is better not to touch it.
• 🔄 Do not interrupt processes (update, test, reset) – this may result in loss of access to the device.
• 🔧 Use official firmware – custom versions can block access to Main Menu.

⚠️ Note: On Xiaomi TVs, changing the parameters HDMI EDID or Panel Driver IC This can cause the device to stop recognizing the signal from the consoles or computers, and then you need to flash it through the computer. USB Burning Tool.

If you've broken something,

1. Try resetting your settings via Reset to Main Menu.
2. If the device does not turn on, contact the Xiaomi service center (but note that the warranty may not cover damage after changes to the service menu).
3. For smartphones, there is a chance to restore performance through Fastboot or EDL-regime.

FAQ: Frequent questions about Main Menu on Xiaomi