Safe Mode on Xiaomi Redmi Note 9: How to turn on and use

Xiaomi Redmi Note 9 is a popular smartphone with a performance hardware, but even it sometimes fails: apps fly out, the system slows down, and the screen freezes on the MIUI logo. In 80% of these cases, Safe Mode, an Android diagnostic tool that disables all third-party programs, leaving only system ones, allows you to identify the culprit of the problem: if the phone is stable, one of the installed applications is to blame.

In this article, we have 3 proven ways to enable safe mode on the Redmi Note 9 (including the Note 9 Pro, Note 9S and Note 9T models), as well as instructions for exiting and diagnosing problems. We will analyze the nuances for different versions of MIUI (12 to 14) and warn against typical errors that can turn diagnostics into a “brick”.

What is a Safe Mode and Why You Need It

Safe Mode is an Android hardware mode that blocks all user apps and services from running, leaving only preinstalled system components. This screen displays the "Safe Mode" watermark in the lower left corner.

The main objectives of Safe Mode:

• 🔍 Diagnostics of crashes: if the phone only glitches in normal mode, the problem is in one of the installed applications.
• 🛠️ Virus Removal: Some malware masquerades as system processes, but it’s easier to detect them in Safe Mode.
• 📱 Recovery after a failed update: if MIUI «Breaking" after update, Safe Mode will help roll back changes.
• 🔄 Factory reset: If the phone doesn't respond to commands, Safe Mode could be the last chance before a full reset.

On the Redmi Note 9, Safe Mode works differently than on the naked Android: due to the MIUI shell, some functions may be limited.

• ❌ Use a dark topic (only a light one).
• ❌ Enable the turbo game mode.
• ❌ Configure navigation gestures (only standard buttons will be available).

⚠️ Warning: Safe Mode disables all accounts (Google, Mi Account, social networks) and if you used fingerprint authentication, you can only unlock your phone. PIN-code-key.

Method 1: Enable via power and volume buttons

The most versatile method that works even if the Redmi Note 9 screen does not respond to touch, is suitable for all versions of MIUI (12, 13, 14) and does not require a connection to a PC.

Instructions:

1. Turn off the phone (press the power button for 10 seconds if it freezes).
2. Hold the power button until the Redmi logo appears.
3. Once the logo appears, press and hold the Volume Down button.
4. Do not let it go until the system is fully loaded – in the lower left corner of the screen the inscription “Safe Mode” will appear.

If nothing happens,

• 🔋 Check the battery charge (should be at least 20%).
• 🔌 Try connecting the charger – sometimes the system blocks the boot due to low voltage.
• 🔄 Repeat the steps, but hold the volume button immediately after pressing the power (without waiting for the logo).

Battery reserve ≥ 20%

All cables (charging, headphones) are disconnected

Power and volume buttons are clean (no dust/moisture)

The phone didn't overheat (temperature) ≤40°C)-->

⚠️ Warning: If the phone automatically restarts to normal mode after enabling Safe Mode, this is a sign of a damaged partition. /system. In this case, only flashing through Fastboot will help.

Method 2: Activate through the off menu

If the phone is responsive to touch, but it's not stable, you can turn on Safe Mode through the standard menu, which is faster, but it doesn't work on some custom firmware.

Step-by-step:

1. Press the power button for 2-3 seconds to turn off the menu.
2. Press and hold your finger on the “Switch Off” option (or “Power Off”).
3. After 3-5 seconds, the offer “Go to Safe Mode” will appear – confirm the choice.
4. The phone will reboot and the bottom left corner of the screen will show the words “Safe Mode”.

If there is no “Safe Mode” clause:

• 📱 You have an unofficial firmware installed (e.g. Pixel Experience or LineageOS).
• 🔧 In the developer settings, the item "Allow" is disabled OEM-unlock».
• 🛡️ Activated antivirus mode (in some versions) MIUI He's blocking Safe Mode).

Through the power and volume buttons

Through the off menu

Through ADB (computer)

None of them helped.-->

On the Redmi Note 9 Pro with MIUI 14 the off menu may look different: instead of the inscription “Stop” will be an icon ⚙️. In this case:

1. Press on. ⚙️ («Power settings»).
2. Select “Reboot in Safe Mode”.

Method 3: Enable via ADB (for advanced users)

If the first two methods fail, the ADB (Android Debug Bridge) is a computer debugging tool that requires pre-configuration, but it works on any firmware.

What you need:

• 💻 Computer with Windows/macOS/Linux.
• 🔌 USB-cable (preferably original).
• 📦 Installed drivers Xiaomi and ADB Tools.
• 🔧 Included debugging by USB phone-on.

Instructions:

1. Connect the Redmi Note 9 to your computer and allow debugging (the phone will be asked).
2. Open the command prompt (Windows) or terminal (macOS/Linux) in the folder with adb.exe.
3. Enter the command: adb shell settings put global force_safemode 1
4. Reboot your phone: adb reboot

Once you restart, the phone will be in Safe Mode. To return normal mode, do:

adb shell settings put global force_safemode 0

⚠️ Warning: If after adb reboot, the phone freezes on the logo, don't panic - wait 5-7 minutes. Maybe there's a system partition check. If after 10 minutes nothing has changed, force the phone to turn off (press the power). + volume upwards for 15 seconds).

How to get out of Safe Mode on Redmi Note 9

In most cases, a simple reboot is enough:

1. Press the power button.
2. Select “Reboot” (or “Restart”).

If the phone is loaded back into Safe Mode after the reboot:

• 🔋 Discharge the battery to 0% and charge to 100% – sometimes this resets temporary errors.
• 🔧 Restore the default settings through Settings → System system → Resetting settings (does not delete data!).
• 📱 Fastboot your phone (instructions below).

If your phone is stuck in Safe Mode and does not respond to the buttons:

1. Press the power + volume up for 15-20 seconds (forced reboot).
2. If it doesn’t work, plug in the charger and try again.

💡

If Safe Mode turns on on its own every time you start, check the volume button, it may be stuck or damaged. Try cleaning it gently with alcohol.

Diagnosing problems in safe mode

When the phone boots up in Safe Mode, start looking for the cause of the crash.

If the problem persists in Safe Mode, the system itself is to blame:

• 🔄 Try to roll back the update through Settings → The phone. → System update (if available).
• 🛠️ Perform a reset to factory settings (pre-save data!).
• 📥 Flash your phone through the Mi Flash Tool (instructions on the official Xiaomi website).

⚠️ If you can’t see your phone in Safe Mode SIM-map, this may be a sign of damage to the module IMEI. Don’t try to stitch your phone – contact the service center.

Frequent Mistakes and How to Avoid Them

Redmi Note 9 users often experience typical problems when working with Safe Mode.

Error 1: Phone doesn’t leave Safe Mode after restart

The reason: the file /data/property/persist.sys.safemode is corrupted.

Decision:

1. Connect via ADB and execute: adb shell rm /data/property/persist.sys.safemode
2. Reboot the phone.

Error 2: The sensor doesn’t work in Safe Mode

Reason: Sensor driver conflict in the minimum configuration of the system.

Decision:

• Connect. USB-mouse-wise OTG-adapter.
• Update the firmware through Settings → System Update.

Error 3: Safe Mode is turned on by itself

Cause: mechanical damage to the volume button or failure in the Recovery.

Decision:

• Check the buttons for physical damage.
• Fastboot: Fastboot Flash Recovery recovery.img

💡

If Safe Mode is activated every time you turn on, it could be a sign of a damaged bootloader, in which case only a full flashing through the Mi Flash Tool with the choice of the "Clean All" option will help.

FAQ: Answers to Frequent Questions