Xiaomi devices, from Redmi and POCO smartphones to Mi TVs and smart gadgets, combine the proprietary shell of MIUI or PatchWall (for TV). However, access to the main menu (or Main Menu) on different devices is organized differently, and if you are looking for how to open advanced settings, hidden features or service menus, this guide will help you understand.
Depending on the type of device, the path to Main Menu may include button combinations, gestures, or a sequence of taps in the interface. For example, on Xiaomi TVs, this is often associated with a remote control, and on smartphones with an engineering menu. We will look at all the current methods, including hidden methods for models from 2023 to 2026 that are not described in the official documentation.
What is Main Menu on Xiaomi devices?
The term Main Menu (main menu) in the context of Xiaomi can mean:
- π± Engineering menu on smartphones β hidden section with iron diagnostics, display tests and sensor calibration.
- πΊ Service menu on TVs β access to factory settings, color calibration and manual firmware updates.
- βοΈ Extended settings in MIUI β hidden options that are not displayed in the standard interface (for example, debugging by USB or energy-saving regimes).
It is important to understand that Main Menu is not the same as regular Settings, which are available to everyone, whereas the main menu often requires special actions or even access codes. For example, on Mi TV 5 and later, you may need a remote control with a Menu button that is not available on the basic models to log into the service menu.
β οΈ Note: Some options on the main menu can cause a device to reset or lose warranty if you change settings at random. For example, improper screen calibration on Xiaomi TV can cause permanent image artifacts.
How to log into Main Menu on Xiaomi TVs (Mi TV, Redmi TV)
On Xiaomi TVs, the path to the main menu depends on the model and firmware version. For most devices (including Mi TV 4S, Mi TV Q1, Redmi Smart TV X), there is a universal way:
- Turn on the TV and wait for the PatchWall interface to load.
- Press the Menu button on the remote (if not, use the Back + Home combination, holding 5 seconds).
- In the window that opens, select Settings β About TV β Software version.
- Click on the inscription Software version 7 times in a row - the service menu will open.
On new models (2023-2026) with remotes without the Menu button, the path changes:
Settings β Device β About TV β Version of the kernel (click 5 times)After that, a list of options will appear, including:
- π§ Factory Reset β Full reset to factory settings.
- π₯οΈ ADB Debugging β enabling debugging to connect to a PC.
- π‘ Network Test β Checking Wi-Fi and Ethernet Signal.
- π¨ Color Calibration β Manual Color Profile Adjustment.
Make sure the TV is connected to the network (do not interrupt the power supply)
Record the current image and sound settings
Prepare a remote with working batteries
Do not change parameters with incomprehensible names (for example, "EEPROM")
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β οΈ Note: On Xiaomi TVs with PatchWall 4.0 firmware+ (2026, access to the service menu may be blocked, in which case you will need a special code that is generated by the serial number of the device (you can request it in support of Xiaomi).
How to log into the main menu on Xiaomi smartphones (MIUI)
On Xiaomi, Redmi and POCO smartphones running MIUI, the term Main Menu is commonly associated with:
- Engineering menu (#4636##) β network, battery and sensor diagnostics.
- Hidden settings β for example, the developer mode (Settings β About Phone β MIUI version, tap 7 times).
- Fastboot menu β available when downloading a smartphone with buttons pinched Power + Volume down.
For most tasks, you just need an engineering menu to get into it.
- Open the Phone app.
- Enter the combination: ##4636## (no call).
- Select the phone information section or battery statistics.
The engineering menu is available:
- πΆ Testing β Signal Checking GSM, LTE, Wi-Fi.
- π Battery Information - detailed data about the battery (voltage, temperature).
- π€ Usage Statistics β Application and System Process Activity.
- π οΈ Hardware Testing β Tests of the display, camera, speakers.
For models with a Qualcomm processor (such as the Redmi Note 12 Pro+), there is an additional QC Test menu that opens with the code ##7780##. It allows you to test the camera modules, GPS and NFC.
Hidden codes to access Main Menu on different devices
In addition to the standard methods, there are service codes that work on most Xiaomi devices, which can be entered in the Phone app (as a regular number) or through ADB (for advanced users).
| The device | Code. | Appointment |
|---|---|---|
| Smartphones (MIUI) | ##4636## | Engineering menu (diagnostics) |
| Smartphones (Qualcomm) | ##7780## | Test of hardware modules |
| TVs (PatchWall) | Settings β About TV β Software version (5 clicks) | Service menu (calibration, reset) |
| Smartwatches (Mi Band) | Triple touch of the lock screen | Hidden sensor settings |
| Routers (Mi Router) | 192.168.31.1/developer | Advanced network settings |
On some smartphone models (such as the Xiaomi 13 Ultra), the codes can be blocked, in which case the alternative is to use ADB:
adb shell am start -a android.intent.action.MAIN -n com.android.settings/.DevelopmentSettingsThis command will open the developer settings, where options like OEM unlock or USB debugging are available.
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If the code doesn't work, try adding a # character at the end (e.g. ##4636###).
Frequent problems when logging into Main Menu and their solutions
Users often have difficulty opening the main menu, and consider common errors and ways to fix them:
- π« Menu button is not available on the TV remote Solution: Use the combination Back + Home (hold 5-10 seconds) or connect a remote from another Xiaomi model (e.g., from the Mi Box).
- π Service menu blocked by password Solution: On TVs, the default password is 1234 or 0000. Smartphones may need to unlock the bootloader.
- β οΈ After entering the menu, the device freezes Solution: Do not change the settings with names EEPROM, Flash or Bootloader. If it freezes, perform a forced reboot (hold power for 15 seconds).
- π΅ Codes do not work on the new firmware Solution: Update your device to the latest version MIUI/PatchWall or use ADB (see section above).
Xiaomi TVs with PatchWall 3.0 and older (2022-2026) may have a message saying "This function is disabled" meaning that the manufacturer has restricted access to service features.
- Check if the TV is connected to the Internet (some options are blocked without the network).
- Turn off Automatic Update in the settings.
- Try logging into the menu via ADB (PC and USB cable required).
What if the TV is not turned on after the changes to Main Menu?
Main Menu on other Xiaomi devices (smart watches, routers, laptops)
In addition to smartphones and TVs, the Xiaomi brand releases a wide range of gadgets, which also have hidden menus:
- β Smart watches and bracelets (Mi Band, Watch) S3): To open hidden settings, do 5 quick taps on the lock screen or connect to the Mi Fitness app and enter the code 12345678 in the About Device section.
- πΆ Routers (Mi Router, Redmi Router): Go to the address 192.168.31.1/developer (Admin is the login and password. QOS, VPN Port Forwarding hidden in the standard interface.
- π» Laptops (Mi Notebook): Press F2 or Del when loading to enter BIOS, where there are hidden options for controlling fans and TDP processor.
On the Xiaomi Smart Speaker, the main menu opens with a voice command: βOpen Developer Settingsβ (only working on Chinese firmware). International versions will require a connection via Mi Home App and a choice of Expert Mode mode.
On robot vacuum cleaners (such as Mi Robot Vacuum), the hidden menu is activated by a combination of buttons: Hold Home + Spot Cleaning for 10 seconds, which will allow you to reset room maps or calibrate sensors.
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On Xiaomi smart devices (watches, routers, speakers), the main menu is often blocked by the manufacturer to prevent incorrect settings. Before experimenting, check if this will deprive you of warranties.
Safety and Risks in Main Menu
Access to hidden settings gives ample opportunities, but also carries risks:
- π₯ Warranty loss: Changing the parameters in the engineering menu (for example, overclocking the processor or turning off sensors) can cause a warranty repair to be denied.
- β‘ Hardware damage: Incorrectly calibrating the screen on the TV or changing the battery voltage on the smartphone can bring the device down.
- π₯οΈ Software glitches: Resetting settings through the service menu can lead to a blink (unloadability) if the firmware is damaged.
To minimize the risks:
- Create a data backup before making changes (on smartphones β via Settings β Additional β Backup).
- Do not edit the settings that have the words Secure, Lock or Boot.
- Use Xiaomiβs official recovery tools (such as the Mi Flash Tool for smartphones or the Mi TV Assistant for TVs).
If the device has stopped working after the changes:
- For smartphones: Try going to Fastboot (Power + Volume Down) and reset via Mi Flash.
- For TVs: Turn off power for 1 minute, then hold Power + Volume up on the remote for 10 seconds.
β οΈ Note: On Xiaomi TVs with OLED-screens (e.g., Mi) TV Q2) Incorrect color calibration in the service menu can cause pixels to burn out.If you are not an expert, avoid changes to the White Balance or Gamma Correction sections.