Many Xiaomi smartphone owners are faced with a desire to gain more control over their device, which goes beyond standard system settings. The developer menu is a hidden section that provides access to advanced system functions, debugging tools and parameters invisible to the average user, and this is where the opportunities for fine-tuning performance and diagnostics lie.
Activating this partition doesn't require root rights or complex technical manipulations, but it does require careful adjustments to the settings, and enabling hidden options allows you to speed up the interface, adjust the behavior of the system when you connect to a PC, and even run specific hardware tests. Let's figure out how to do it correctly.
It is important to understand that interference with system settings can affect the stability of the gadget, if not careful. Changing the setting "Minimum width" (Minimum width) more than 20% of the factory value can lead to inoperability of the interface and the inability to go back without reset.
Why you need a hidden menu and what functions it provides
The main purpose of this section is to provide tools for programmers who create applications for the Android platform, but ordinary users can find many useful options here to optimize the performance of their smartphone, for example, here you can change the speed of animation of windows, which visually makes the system faster and more responsive.
And then there's the back-end management features, which you can limit the number of applications running in the background or you can stop the system from shutting them down, which is especially true for devices with little RAM, and you can also have settings for location emulation, which is useful for testing geo-services.
- 📱 Access to debugging USB for file transfer and management from PC.
- ⚡ Customize the speed of animations to visually speed up the interface.
- 🔍 Running detailed reports on bugs and memory usage.
- 📡 Managing Bluetooth codecs and network parameters.
It is worth noting that some features can be hidden or renamed depending on the version of the MIUI shell or HyperOS. In new firmware versions, Xiaomi periodically changes the location or availability of certain options for security reasons.
Step-by-step activation instructions on modern versions of MIUI
The process of enabling hidden features on Xiaomi smartphones is standardized and takes no more than a minute. You do not need to connect the device to a computer or use third-party software. All actions are performed directly through the standard Settings application.
You first need to go to the About Phone section, which contains basic information about the model and the software version, and this is where the button for unlocking the engineering mode is hidden, and the path may be slightly different from one version of the shell, but the logic remains the same.
☑️ Algorithm of Including Developer Mode
After a series of clicks, the system will give a notification that you have become a developer, from now on, a new item will appear in the “Additional” menu, and if this does not happen, check if you have a “Second Space” mode or guest profile, as activation may not be available in these.
⚠️ Note: Do not change the meaning in the "Debugging by" section USB», If you don't connect your smartphone to your computer to transfer data or debug applications, enabling this feature without needing to reduce the security level of the device.
Where to find the included section in the smartphone settings
Once activated successfully, the new menu item does not appear on the main settings screen, but hides in the “Advanced” subsection, which is designed to protect inexperienced users from accidentally changing critical system settings.
To access developer tools on current versions of MIUI 13, 14 and HyperOS, you should follow the path: Settings → Additional → For developers. In older versions of the shell, this section could be directly under the "Advanced Settings" item.
Inside, you'll find a long list of options grouped into categories. The top part usually contains the entire menu activation switch and the ADB debugging version information. Below are the network settings, input, hardware acceleration and rendering.
- 🔹 The "Network" section contains settings DNS Bluetooth.
- 🔹 The “Input” section allows you to adjust the sensor response speed.
- 🔹 The Hardware Acceleration section manages graphics rendering.
If you can't find the "Developers" item after successful activation, try restarting the device. In rare cases, you need to re-click on the build number to finally record the user status.
Configure debugging over USB and work with ADB
One of the most popular features is USB Debugging.This mode allows the computer to communicate with the phone at a deep system level using the Android Debug Bridge (ADB) protocol. Without enabling this option, the computer will only see the phone as a media device or power source.
When you first connect the cable to a PC with debugging enabled, you'll see a request on your smartphone screen to confirm the debugging from that computer, and you'll check "Always allow from this computer" and click "OK." This will create a digital security key.
adb devices
adb shell wm density
adb rebootUsing ADB commands, you can perform actions that are not available through the interface: remove system applications, make full backups, install custom recaps or reflash the device. To work with the command line on the PC, you need to install Xiaomi USB Driver drivers and the SDK Tools platform.
What to do if your computer does not see your phone in debugging mode?
⚠️ Warning: Never turn on the debugging on USB Attackers can access your data or install malware through an open debugging port.
Optimization of the interface: animations and scaling
The visual component of the system directly affects the subjective sense of speed. In the developer menu, you can find three parameters responsible for animation: "Window animation", "transition animation" and "Duration of animation", by default, they are set to 1x.
Changing the value to “0.5x” or completely shutting down (“Animation is off”) makes the interface more “twitchy” but much faster responsive to actions, a popular technique for owners of devices with mid-level processors, where standard animation can cause micro-latency.
| Parameter | Value 1x | Value 0.5x | Off. |
|---|---|---|---|
| Response speed | Standard. | Fast. | Instant. |
| Smoothness | Tall. | Medium | Low. |
| Visual comfort | Natural. | Sharp. | Sharp. |
| Impact on the battery | Minor. | Minimum | Minimum |
Another important setting is Minimum Width (or DPI), which reduces the scale of interface elements to allow more information to be placed on the screen, but as mentioned earlier, over-magnification can make text unreadable and buttons too small to be pressed.
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If you accidentally set a DPI too high and the interface becomes unreadable, don’t panic. Go to the developer menu (it’s available even at a downscale) and reset it to the standard one (usually 360-400 DPI for smartphones).
Memory and background management
Android aggressively manages RAM, often closing applications that users plan to use again. On the developer menu, you can find the option “Limit background processes”, here you can severely limit the number of simultaneous applications.
Also useful is the Do Not Save Action feature, which, if activated, will destroy the activity of the application as soon as the user leaves it, which can be useful for testing, but in everyday use will lead to constant reboot of applications when switching between them.
- 🚀 Strict mode: visualizes the load on the main stream, showing the flashing screen during long operations.
- 🧹 Memory: button to display the memory cleanup menu and usage statistics.
- 📉 CPU boot: displays a real-time CPU load schedule in the corner of the screen.
Using these tools helps identify resource-eating apps. If you notice your phone is warming or running out quickly, turning on the CPU boot display will help you understand which process is consuming power in the background.
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The optimal setup of background processes is the Standard Limit, which artificially restricts the number of processes often leads to faster battery discharge due to constant reboot of applications.