Why you need a developer mode on Xiaomi and what it gives
Developer mode on Xiaomi, Redmi and POCO smartphones is a hidden menu with advanced settings that is disabled by default. Its activation gives access to functions not available in the standard MIUI. For example, you can enable debugging over USB, change the interface animation, adjust background processes, or even unlock the bootloader to install custom firmware.
But why is this mode hidden? Manufacturers (including Xiaomi) believe that most users do not need such settings — the wrong changes can lead to system failures, performance deterioration or even loss of warranty. However, for enthusiasts, developers or those who want to squeeze the most out of the device, this mode becomes an indispensable tool.
It is important to understand that enabling the developer mode does not violate the warranty in itself, but some actions within it (for example, unlocking the bootloader or manually changing system parameters) can lead to the cancellation of warranty obligations.
Step-by-step: how to turn on the developer mode on Xiaomi
The activation process is the same for most Xiaomi, Redmi and POCO models (starting with MIUI 8 and later).
- Open “Settings” on your smartphone (the gear icon on the home screen or in the application menu).
- Scroll down and select About Phone (on some firmware - About Device).
- Find the MIUI version string and tap it 7 times in a row.
- After the seventh press, a notification will appear: You have become a developer! or Developer Mode is activated.
- Return to the main menu “Settings” – now there will be a new item “Additional settings → Developer settings”.
If you have a POCO shell with a POCO Launcher, the path may be slightly different: sometimes the About phone item is hidden in Settings → System. On older versions of MIUI (up to 12), instead of the MIUI version, you need to tap the Assembly Number.
Check that you are using the line "Version". MIUI" (not elsewhere)
Make sure the sensor is working correctly (try pressing 7 times slowly)
Restart your phone and try again.
Update MIUI to the latest version (if available)
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On some models (such as the Xiaomi Mi 11 or Redmi Note 10 Pro), after activating the developer mode, you may need to enter a password from your Mi Account to confirm, a security measure to prevent unauthorized access to system settings.
Where to find the developer's settings after activation
After successful activation of the mode, the new partition will appear in the settings, but its location depends on the version of MIUI:
- 📱 MIUI 12/13/14: Settings → Additional settings → Developer parameters
- 🔧 MIUI 11 and older: Settings → Advanced settings → For developers
- 🔍 POCO Launcher: Sometimes the item is hidden in Settings → System system → Additionally.
If you don’t see the partition after activation, try searching by settings (the magnifying glass icon in the upper right corner) and entering the “developer” query, and check if the item is hidden due to regional firmware restrictions (for example, on global versions of MIUI it can be called Developer options).
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If the Developer Settings section is missing after the MIUI update, repeat the activation procedure (7 taps for MIUI Version).
On some custom firmware (like LineageOS or Pixel Experience), the path may be different. In this case, look for the Settings → System → More.
The main functions of the developer mode: what can be configured
Xiaomi’s developer mode gives you access to dozens of hidden options, and here are the most useful ones:
| Function | What do you need? | Risks. |
|---|---|---|
| USB debugging | Connect to a PC for debugging through ADB, installing firmware, working with Fastboot | Vulnerability to malware if you connect to unknown devices |
| Unlocking the OEM | Allows you to unlock the bootloader for installing custom firmware | Reset to factory settings, loss of warranty |
| Scale of animation | Speeding up or disabling interface animation (0.5x, 1x, 10x) | Can cause lags with incorrect values |
| Background processes | Limiting the number of applications running in the background (saves battery) | Closing important services, skipping notifications |
| Simulation of the secondary display | Emulation of the second screen for multitasking testing | Could lead to graphic artifacts |
One of the most popular options is USB debugging, which allows you to connect your smartphone to your computer to execute commands via ADB (Android Debug Bridge), for example, it can:
- 📱 Install APK-Files without confirmation (adb install)
- 🔄 Backup of system applications (adb backup)
- 🛠️ Open the bootloader (fastboot oem unlock)
- 📊 Get system logs for error diagnosis
What is ADB and why is it needed?
Another useful option is permission to install from unknown sources for specific applications, and unlike standard permission in security settings, you can flexibly configure which programs are allowed to install. APK-file.
Security: Which settings are better not to touch
Not all parameters in developer mode are harmless, some changes can lead to unstable system operation, overheating or even loss of data, and this is not recommended to change without a clear understanding of the consequences:
- ⚠️ Don't turn off the check. MIUI (Disable MIUI Optimization – This can break the shell.
- ⚠️ Don't change the parameters. GPU-rendering (Force) GPU rendering - will lead to graphical glitches.
- ⚠️ Do not activate “Stay awake” – fast battery discharge.
- ⚠️ Do not turn on “Strict mode” – interferes with the work of applications.
⚠️ Note: Changing the Background process limit to a value below the standard can cause messengers (such as WhatsApp or Telegram) to stop receiving notifications.
Especially careful should be treated to the settings associated with the bootloader and unlocking OEM. Their activation can:
- 🔓 Allow installation of unofficial firmware (which voids the warranty).
- 🔄 Reset all data when unlocked.
- 🛡️ Increase the vulnerability of the device to attacks (if the bootloader is unlocked).
On some Xiaomi models (such as the Mi 10T or Redmi K40), unlocking the bootloader through the developer settings requires a Mi Account to be tied to the device for 72 hours.
Yeah, for USB debugging.
Yeah, to speed up animation.
Yeah, to unlock the bootloader.
No, I've never tried.
I don't know what that is.-->
How to turn off the developer mode on Xiaomi
If you no longer need advanced settings, you can deactivate the developer mode.
- Go to Settings → Additional settings → Developer settings.
- In the upper right corner, press the switch (it will turn gray).
- Confirm the disconnection in the window that appears.
After that, the section will disappear from the settings menu, but the activation option will remain - to turn on the mode again, just repeat the procedure with 7 taps on the MIUI version.
If you want to completely reset all the changes made to the developer’s settings, reset the settings:
- Go to Settings → About the phone → Reset settings.
- Choose Reset All Settings (not to be confused with Reset to Factory, which deletes all data!).
- Confirm the action.
⚠️ Warning: Resetting to factory settings (Wipe data) will remove all data from the device, including photos, contacts and applications.Be sure to back up through Settings before this procedure. → Additionally. → Backup and reset.
Frequent problems and their solutions
When working with developer mode on Xiaomi, users often encounter errors, and here are the most common ones and ways to fix them:
| Problem. | Reason. | Decision |
|---|---|---|
| The mode is not activated after 7 taps | The sensor does not recognize the pressing or the old version of MIUI | Update the firmware or tap slower, with pauses |
| The "Developer Options" item is missing | Resetting or updating MIUI | Repeat activation (7 taps according to "Version" MIUI») |
| USB debugging doesn't work. | ADB drivers are not installed on PC | Install Mi PC Suite or Google USB Driver |
| Error "OEM unlock is not available" | Mi Account is not tied for 72 hours | Wait 3 days from the moment of account linking |
If after enabling debugging over USB, the computer does not see the device, follow the following steps:
- Connect your smartphone to your PC via the original cable.
- In the notification menu on your phone, select File Transfer (MTP) mode.
- On PC, open Device Manager and check if there is an exclamation point near Xiaomi.
- If the driver is not installed, download the Mi Flash Tool or ADB Driver Installer.
On some models (e.g. Xiaomi Mi A3 or POCO X3 NFC), after unlocking the bootloader, a warning may appear about the unofficial firmware at each boot. This is normal behavior - this is how the system signals that the bootloader is unlocked.
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If after a change in the parameters of the developer, the smartphone began to brake or overheat, return all settings to the default state. GPU-Rendering or limiting background processes.