Xiaomi and Redmi smartphone owners often face a situation where standard operating system functionality is not enough to fine-tune the device. MIUI or HyperOS interface hides a lot of useful tools that are accessed through special configuration sections. Users looking for an answer to the question of where the system menu on Xiomi Redmi's Android is usually referring to either a hidden developer menu or an engineering mode for testing equipment.
Understanding the structure of these settings is critical for those who want to make the most of their gadget. The system menu allows you to control the settings that are hidden by default from the eyes of the average user to avoid accidental crashes. This can be changing the speed of animation, debugging applications or even checking the screen matrix for broken pixels.
In this article, we will discuss in detail all possible options for entering hidden parts of the system. You will learn how to activate the developer mode, what codes to use for the engineering menu and what risks there is interference with the work of system processes. Android provides a wide range of opportunities, but requires caution when using them.
Activate the developer menu on Redmi
The first step to advanced smartphone management is to include the standard developer menu. It's not a hidden engineering section, but the official Google Android tool that Xiaomi just hides in the depth of settings. To access it, you need to perform several sequential actions.
Open the Settings app and scroll down to About Phone. Here you will need to find the MIUI Version (or HyperOS Version). The key is to click on that line 7-10 times in a row until a pop-up notice shows up that you have become a developer.
Once activated successfully, go back to the main settings menu, and now a new option, Developer-friendly, will appear on the "Additional" or "Extended Settings" list, and that's where the debugging, memory management and customization tools are concentrated. USB-configuration.
☑️ Checking the activation of the developer mode
Within this section, you should be extremely careful. Changing certain parameters, such as the size of the interface or the limit of background processes, can lead to unstable operation of individual applications. USB» This is especially important for those who plan to connect their phone to a computer for data transfer or use. ADB-team.
Engineering menus and hidden tests
A deeper level of access is the engineering menu, often confused with the usual developer settings, which is designed to test the hardware components of a phone by service center staff, accessed through a special Engineering Menu app or by entering codes into a caller.
To sign in via dial, use the combination ##6484##. Some Redmi and Poco models may have different codes, such as ##3646633##. If the code is entered correctly, the interface will open with tabs such as Hardware Testing, Common, Connectivity and others.
⚠️ Note: Making changes to sections labeled as Telecom or Hardware Testing may cause a radio module to malfunction or a network signal to be lost completely.
The Hardware Testing tab allows you to check the vibrator, screen, speakers, microphone and sensors, and it's a great way to diagnose a malfunction before you call the service, for example, the Touch Panel test will help you identify areas of insensitivity of the display.
There is also a CIT (Customer Integration Test) menu that runs with similar codes, which provides more detailed information about battery status, including cell temperature and the number of charging cycles, which is not displayed in the standard interface.
What if the code doesn't work?
Configure USB settings and debug
One of the most popular features on the developer menu is the setting. USB-By default, the smartphone can only charge when connected to a PC, which limits the ability to transfer files or use the phone as a webcam.
In the "Developers" section, look for the "Default USB Configuration" option, where you can choose the mode of operation: charging, file transfer (MTP), photo transfer (PTP) or MIDI. To work fully with the file system, you need to choose MTP.
The USB Debugging feature requires special attention, and when it is enabled, the system will issue a security risk alert, a mechanism that allows the computer to fully access the file system and system commands via ADB (Android Debug Bridge).
- 🔌 MTP — Media device mode, allows you to see phone files on your computer.
- 📸 PTP — Camera mode, used to upload photos to PC without drivers.
- 🔧 USB Debugging – debugging, needed for installing applications from a PC and deep customization.
- 🔋 Charging - only energy, data transmission is blocked.
Therefore, it is recommended to disable this function when it is not in use.
💡
Use Always Request mode to debug over USB, which will make your phone require screen confirmation every time you connect to a new computer, which will increase the security of your data.
Animation and speed management
Owners of Xiaomi devices often complain about the excessive visual load of the interface. In the developer menu hidden settings that allow you to speed up the visual perception of the system without really improving the performance of the processor.
Find the sections “Scale of window animation”, “Scale of transition animations” and “Duration of animations.” These are set to 1x by default. Changing this setting by 0.5x makes the interface visually faster and more responsive.
Also, you can limit the number of background processes here. Background Process Limits lets you specify how many applications can remain active in memory. Setting a "No Background Processes" value can free up RAM, but will cause applications to constantly reboot when switching between them.
| Parameter | Default value | Recommended value | The effect |
|---|---|---|---|
| Window animation | 1x | 0.5x | Acceleration of opening/closing windows |
| Animation of transitions | 1x | 0.5x | Quick switching between screens |
| Background processes | Standard. | No more than 4. | Savings in RAM |
| Bluetooth Tracking | Off | Off | Reducing CPU load |
Don’t completely disable all animations (meaning “No animation”), as this can disrupt the visual logic of the interface and make navigation less understandable. The optimal balance is 0.5x.
💡
Reducing animation to 0.5x is the safest and most effective way to make the MIUI interface faster without losing system stability.
Diagnostics and monitoring of the system
The system menu provides tools not only for customization, but also for deep diagnostics. The Statistics or Running Services section shows which applications consume the most RAM right now.
Show taps displays a white circle at the point of the finger press, which is useful for creating screencasts or training videos so that viewers can see where you are clicking on the display.
Also available is CPU usage mode, which overlays a graph at the top of the screen, displaying the current load on the processor in real time, which helps identify mining applications or programs causing the device to heat up unnecessarily.
Logs are available for advanced users, and logging allows you to record all system events in a file, which can then be analyzed to find causes of crashes or crashes of applications.
Frequent problems and their solution
When working with the system menu, users may encounter a number of typical problems, for example, after turning on certain options, the phone may start to run slower or some applications will stop running.
If you change your settings and the system starts to behave unstable, the best way to get everything back is to find the “Reset Settings” button at the top of the developer menu or simply turn off the master switch “For developers”.
Sometimes the developer menu item disappears after the reboot, which is normal for some versions of MIUI, in which case the activation procedure after 7 clicks on the firmware version will have to be repeated.
⚠️ Note: Do not try to change settings in the sections associated with network protocols (Select Wi-Fi band, Bluetooth). HCI log) if you don't understand what they're responsible for, it could cause you to lose your Wi-Fi or Bluetooth headset connection.
If the phone is stuck in a reboot cycle after experimenting with system files through ADB, you may need to reset to factory settings (Hard Reset) via Recovery Mode.