How to completely disable the developer mode on Xiaomi Redmi 9: 5 proven ways

Have you accidentally activated the developer mode on your Xiaomi Redmi 9 and now you don’t know how to get rid of it? Or have experimenting with settings for power users caused a malfunction in your smartphone? This problem is familiar to many owners of Xiaomi devices — especially after trying to overclock the processor, debug over USB or change the animation interface.

Developer Mode in MIUI opens up hidden features, but displaying it in settings is annoying, and some options can disrupt system stability. In this article, we’ll look at all possible ways to deactivate, from standard shutdown through menus to full reset if the phone starts to “glut,” and you’ll also learn which settings remain active even after you’ve left developer mode and how to reset them.

The important thing is, if you turn on this mode to unlock the bootloader or install custom firmware, turning it off won't bring the phone back to its original state -- it will require additional action. But about everything in order.

Why does the developer mode not disappear after the shutdown?

Many users find that after clicking on the Off switch in the Developer Menu, the item still remains in the main settings, because of the MIUI:

• 🔄 Caching Settings: The system retains access to the developer menu even after it is deactivated to speed up re-enablement.
• 📱 Active debugging functions: If you have previously authorized debugging USB or changed the parameters OEM-Unlocking, the system considers the regime in demand.
• 🔧 Manual intervention: Some applications (e.g, ADB Magisk can automatically reactivate the mode.

Moreover, Redmi 9 (model M2003J15SC) has a bug after upgrading to MIUI 13/14: the item For developers can be duplicated in the settings. This is not a critical error, but it interferes with navigation.

⚠️ Note: If you previously unlocked the bootloader via the Mi Unlock Tool, simply turning off the developer mode won’t block it back.

Method 1: Standard shutdown through settings

The easiest way is to use built-in tools. MIUI. This is suitable if you have not changed the critical parameters (for example, not activated). OEM-unlock):

1. Open the Settings. → The phone.
2. Tap 7 times on the MIUI version until the notification you became a developer appears! (yes, even to turn off you need to turn on first).
3. Return to the main settings menu and select Additional → For developers.
4. Move the slider to the off position at the top of the screen.
5. Confirm the action by pressing OK in the dialog box.

After that, the For Developers item should disappear from the menu. If this does not happen, restart the phone (Long hold of the power button → Reboot).

Method 2: Reset developer settings without data loss

If the standard method didn’t work, try resetting only the developer mode settings without affecting personal files.

1. Go to Settings → Applications → Application Management.
2. Slip on the three points in the upper right corner and select Show System.
3. Find the Settings app (com.android.settings) and open it.
4. Select Warehouse. → Clear the data.
5. Confirm the action and restart the phone.

This method removes all user settings, including the developer’s settings, but does not affect photos, messages or installed applications, but you will have to reconfigure Wi-Fi, wallpaper and other personal settings.

⚠️ Note: After cleaning the settings data, the smartphone may request a re-authorization in the Mi Account!

Method 3: Remove via ADB (for power users)

If you've used ADB (Android Debug Bridge) before, you can uninstall the developer mode by command.

1. Download and install Google’s Platform Tools.
2. Activate Debugging via USB in the developer menu (if you haven’t already disabled it).
3. Get Redmi on board. 9 To PC and type in the command line: adb shell settings put global development_settings_enabled 0
4. Reboot your phone with the command: adb reboot

Once you reboot, the Developer Fork should disappear. If not, check if other commands associated with the mode are active.

adb shell settings list | grep development

This will show all the parameters associated with the development.

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If ADB doesn’t recognize the device, try updating drivers via Mi PC Suite or manually installing the Android Composite ADB Interface driver.

Method 4: Complete reset to factory settings

The last resort is hard reset, which will bring the phone back out of the box.

• 🔄 Smartphone began to slow down after changes in the mode of the developer.
• 🚫 Standard disconnection methods do not work.
• 🔓 You unlocked the bootloader and want to get it back.

Instructions:

1. Back up your data via Settings → Additional → Backup or Mi Cloud.
2. Go to Settings → About the phone → Reset settings.
3. Choose to erase all data and confirm the action.
4. After the reboot, perform the initial setup as after the purchase.

⚠️ Note: If you unlock the bootloader, after resetting, the phone may require re-assigning the Mi Account via the Mi Unlock Tool!

Method 5: Firmware rollback (if the mode appeared after the update)

Sometimes the Developer For option appears after the MIUI update and doesn't disappear even after the reset, in which case a rollback to the previous firmware version will help:

1. Download the stable version of MIUI for Redmi 9 (codenamed Lancelot) from the official Xiaomi website.
2. Rename the file to update.zip and place it in the root directory of internal memory.
3. Go to Settings → About the phone → System update.
4. Slip on the three dots in the top corner and select Select a firmware file.
5. Please specify the path to update.zip and wait until the process is completed.

After the rollback, check for the Developer Item. If it's gone, the problem was the current firmware bug. If it's not, you'll have to use ADB or a full reset.

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The only way to remove the duplicate “Developers” item that appears after the MIUI 12 → MIUI 13 update.

What do you do if nothing helps?

If all of these methods do not work, the reason may lie in:

• 🛠️ Damage to system files (requires flashing via Fastboot).
• 🔒 Active. OEM-Unlock (you need to block the bootloader through the Mi Flash Tool).
• 📱 Castile firmware (return to stockware) MIUI).

In such cases, we recommend:

1. Contact the Xiaomi service center (if the phone is warranty).
2. Use the Mi Flash Tool for full flashing (instructions are available on the 4PDA or XDA-Developers forums).
3. Try alternative methods through TWRP Recovery (if installed).

Remember: any manipulation of firmware carries the risk of a breeze (turning the phone into a brick), if you are not sure of your abilities, you better trust it to the professionals.

FAQ: Frequent questions about Redmi 9 developer mode