Debugging by USB on Xiaomi Redmi Note 5: how to turn on in 5 minutes (with photo)

Enabling USB debugging on Xiaomi Redmi Note 5 is a must for those who want to gain advanced control of a smartphone. Without this mode, you can not flash the device through fastboot, get root rights, use ADB to debug applications or recover data after a crash. However, many users face problems: the developer menu does not appear, the computer does not see the phone, and MIUI blocks the connection due to security policy.

In this article, we will analyze not only the standard debugging activation procedure, but also the nuances associated with the MIUI version (from 9 to 12.5), the features of Xiaomi drivers for Windows, as well as typical errors like unauthorized or device offline in ADB. If you have previously tried to enable debugging and encountered difficulties, here you will find solutions.

1.Why do you need USB debugging on Redmi Note 5?

USB debugging mode allows you to access low-level Android features via your computer. On Xiaomi Redmi Note 5 (codenamed whyred), this is especially true because of the closed MIUI ecosystem that limits the user’s ability. Here are the main scenarios where you can not do without debugging:

• 🔧 Firmware through Fastboot/EDL: Install custom firmware (LineageOS, Pixel Experience) or official global versions MIUI.
• 📱 Root Access: Obtaining superuser rights via Magisk or SuperSU (requires unlocking the bootloader).
• 🖥️ ADB-Commands: Removal of system applications, backup /data, change DPI screen.
• 🔄 Data recovery: Removing files from a broken screen or after a failed reset.
• 🛠️ Diagnostics: Testing of sensors, testing of iron through Qualcomm QDART.

Important: On the Redmi Note 5, USB debugging automatically shuts down after connecting to a new computer, which is a MIUI security measure. You have to confirm your trust in the PC every time.

Without this mode, even basic operations like resetting a pattern lock through ADB become impossible, for example, if you forget your password, debugging will allow you to delete gesture.key or password.key without losing data.

2.Preparation: What to do before turning on debugging

Before you go to settings, make sure all the preconditions are met. Skipping at least one item can lead to errors like device not found in ADB or lack of developer menus.

Download and install Xiaomi drivers for your OS

Enable data transfer over USB (MTP mode)

Check the version of MIUI (Settings → About the phone)

Disable the antivirus (it can block ADB)

Connect the phone to the original USB-cable (not all cables support data transmission)

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For Windows, download the official Mi PC Suite from Xiaomi or use universal drivers from Google (for example, 15 seconds ADB Installer). No drivers are required on macOS/Linux, but you may need to manually configure the udev rules for ADB.

Also check the MIUI version in the Settings → About Phone menu. On older versions (MIUI 9-10), the path to the developer menu may be different. For example, in MIUI 9, you first need to tap 7 times on the MIUI version, and then go to the Additional Settings → For developers.

⚠️ Note: If you are using a non-original cable or USB-hub, debugging may not work.Redmi Note 5 is sensitive to connectivity quality - try the port USB 2.0 on the back of the PC.

3. Step-by-step instruction: how to enable debugging over USB

Now, the basics are good for all MIUI versions on the Redmi Note 5, but with firmware in mind. Follow the steps carefully.

1. Activate the Developer Menu: Go to Settings → About the phone and tap 7 times in a row on the item Version MIUI. After that, the notification will appear, "You became a developer." What if the developer menu does not appear? If after 7 taps nothing happens, check: - Is the latest version installed? MIUI (Update to Settings → System updates. - Are there any restrictions from the employer (on corporate devices, the menu can be blocked). - Try tapping not on the inscription "Version" MIUI", a by assembly number (e.g, "V12.5.1.0").
2. Go to the Developer Settings: Go back to the main Settings menu and find the new Additional Settings section. → For developers (in) MIUI 12+ It can be called simply “For the Developers»).
3. Turn on USB debugging: Scroll down and activate the USB debugging switch. A warning will appear, press OK. If the option is grey and inactive, turn on OEM Unlock (located in the same menu) first.
4. Confirm trust in your computer: Connect your phone to your PC. On your smartphone screen, you'll see a request for "Allow debugging by debugging." USB?» s RSA-Check "Always allow from this computer" and click "Allow».

Now, the ADB (computer) should show your model, and you can check it with the command:

adb devices

If you see the serial number of the device (for example, abc123456789 device) in response, the debugging works.

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If adb devices show unauthorized, turn off the phone, delete the folder ~/.android (Linux/macOS) or C:\Users\Username\.android (Windows), then reconnect and confirm trust.

4. Typical errors and their solutions

Even after you set it up properly, debugging may not work, and let's look at some of the most common problems and ways to fix them:

If, after all the manipulations, ADB still can’t see the device, try:

• 🔄 Restart your phone and computer.
• 📱 Enable/disable File Transfer Mode (MTP) notice-curtain.
• 🖥️ Launch. ADB on behalf of the administrator (Windows) or with the sudo (Linux/macOS).

⚠️ Note: Some Xiaomi firmware (especially Chinese) debugging USB This can be blocked due to security policy, in which case you need to unlock the bootloader through the Mi Unlock Tool.

5 Security: Risks and how to minimize them

USB debugging provides full access to the Android system, which can be dangerous in the wrong hands.

• 🕵️ Data Leakage: Connecting to an infected PC allows an attacker to copy photos, messages or passwords.
• 📲 Installation of malware: Through ADB You can install a virus or spy app unnoticed.
• 🔓 Unlocking the bootloader: On some devices, it erases all data (factory reset).

To protect yourself:

1. Turn off debugging when you don’t need it (in the developer menu).
2. Do not connect your phone to public computers (internet cafes, libraries).
3. Use ADB only on trusted PCs with current antivirus.
4. After working with fastboot or ADB, perform virus testing (for example, through Malwarebytes).

Important: If you sell or transfer a phone, be sure to turn off debugging and make a factory reset (Settings) → Additionally. → Recovery and reset. It'll wipe everything out. ADB-keys and protect your data.

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USB debugging is a powerful tool, but it should only be used when needed. Once you have finished your work (firmware, backup), turn it off in the settings immediately.

6. Alternative ways to enable debugging (if the standard one doesn't work)

If the developer menu doesn’t appear or the debugging isn’t activated, try these methods:

Method 1: ADB (if USB is already recognized)

If the phone is defined in fastboot but not in ADB, you can enable debugging by command:

adb shell settings put global development_settings_enabled 1


adb shell am start -n com.android.settings/.DevelopmentSettings

Method 2: QuickShortcutMaker application

Install an app from Google Play, search for activity DevelopmentSettings, and create a shortcut on the home screen, which will allow you to open the developer menu even if it is hidden.

Method 3: Through fastboot (for unlocked bootloader)

If the bootloader is unlocked, you can temporarily download custom recovery (TWRP) and enable debugging via /data/property/persist.sys.usb.config:

echo "persist.sys.usb.config=mtp,adb" >> /data/property/persist.sys.usb.config

These techniques require technical knowledge and can cause system failure, and only use them if the standard method doesn't work.

7. USB debugging and custom firmware: what you need to know

If you plan to install LineageOS, Pixel Experience or other custom firmware on the Redmi Note 5, debugging on USB is just the first step.

• 🔓 bootloader Unlock: Officially via Mi Unlock Tool (requires Mi Account binding and waits 7–30 days).
• 📥 Installation TWRP: Custom recovery for backup and firmware ZIP-file.
• 🛡️ Mi Anti-Rollback Disabled: On some firmware, Xiaomi blocks downgrade, which can lead to brick).

Before firmware, be sure to make a backup through ADB:

adb backup -apk -obb -shared -all -f backup.ab

This will save the applications, their data and settings.

⚠️ Warning: Redmi Note 5 with Snapdragon 636 processor may cause incorrect firmware loss IMEI Always check that the firmware is compatible with the code name of the device (whyred).

FAQ: Frequent debugging questions on Redmi Note 5