Xiaomi Redmi Note 4 is frozen and does not respond: how to restart without data loss

Xiaomi Redmi Note 4 is one of the most popular smartphones of the brand, but even it is not immune to system failures: screen freeze, “black screen of death”, endless loading or complete unresponsiveness to presses – these problems are faced by many users after 2-4 years of active use. The reasons can be different from overheating of the Snapdragon 625 processor to conflicts after updating the MIUI or physical wear of memory.

Unlike the new models, the Redmi Note 4 does not support modern automatic recovery mechanisms, so restarting a frozen device requires manual intervention. In this article, all proven methods, from the simplest to the most radical, taking into account the specifics of this particular model. Importantly, some methods can lead to data loss if a failure is associated with file system damage.

1. Software reboot: when the smartphone responds to touch

If the Redmi Note 4 screen is not completely frozen, but simply slows down or does not open applications, try the standard methods of rebooting through the interface. This is the safest option, since it does not interrupt background processes and does not risk damaging data.

First, hold the power button for 5-7 seconds, and the menu with the options "Stop, Reboot and Emergency" should appear on the screen. If the menu does not appear, but the smartphone vibrates or the screen flashes, then the system is still partially working.

• 🔄 Try holding the power button for 10 to 15 seconds until forced shutdown. MIUI It works even in the case of heavy lags.
• 📱 If the screen reacts slowly, open the settings. → The phone. → Reboot. This path sometimes works when the power button is locked.
• 🔋 Sometimes the freeze is caused by a battery discharge below 5%, and the connection to the network “wakes up” the device.

If the smartphone freezes again after rebooting through the menu, the problem may be in a damaged application cache or a conflict of background services, in which case cleaning the cache through Recovery will help (more about this in the next section).

Forced reboot: when the screen does not respond

If the smartphone is completely frozen — the screen doesn't blink, doesn't respond to touch, and the power button doesn't call the menu — you'll need a hardware reboot. There are two reliable ways to get the Redmi Note 4:

Method 1: Button combination

Hold the power button and the volume button for 15-20 seconds at the same time. Release only after the Xiaomi logo or vibration appears. This method works in 90% of freezes, as it simulates hardware power reset.

Method 2: Removing the battery (for power users) Redmi Note 4 has a non-removable battery, but if it freezes critically (for example, after a failed update), it can be temporarily turned off.

1. Remove the back cover (a mediator or plastic card will be required).
2. Disconnect the battery plume for 10-15 seconds (use a wooden stick to avoid damaging the contacts).
3. Connect the plume back and turn on the smartphone with the power button.

⚠️ Warning: Disabling the battery manually can result in loss of unsaved data (such as open tabs in the browser or draft messages).Do not use this method if the smartphone has enabled data encryption - after the power is turned off, it may require a password to decrypt the data.

Try holding the power button 10+ seconds | Connect the charger for 5 minutes | Check if the volume button is pressed (can block the on) | Use the Power + Volume Up combination only if the screen is completely black-->

3.Reboot via Recovery Mode: Cleaning the cache

If the smartphone is turned on but permanently hangs on the MIUI logo or reboots cyclically, the problem may be a damaged cache, in which case cleaning through Recovery, the built-in recovery mode, will help.

To get to Recovery on Redmi Note 4:

1. Turn off your smartphone (forced if it freezes).
2. Hold the power button and the volume button at the same time.
3. Release the buttons when the Mi Recovery logo appears.

In the Recovery menu, you can control the volume buttons (up/down) and the power button (select). Select Wipe & Reset → Wipe Cache and confirm the action. This will delete temporary files, but will not affect user data.

⚠️ Note: If you choose Wipe Data, all data on internal memory (photos, messages, apps) will be deleted. ADB for backup (instructions in the next section).

4. Connect to PC and ADB commands (for advanced)

If the Redmi Note 4 freezes during the boot phase but responds to a computer connection (defined as a device in Device Manager), you can try rebooting it via Android Debug Bridge (ADB).This method requires pre-configuring the debugging over USB, but if it was enabled earlier, the chances of success are high.

Download and install Google’s Platform Tools, then follow the following steps:

1. Connect your smartphone to your PC through USB-cable (preferably original).
2. Open the command prompt (Win + R → cmd) and type: adb devices If the device is identified (the serial number appears), move to the next step. If not, try another cable or USB port.
3. Run the command for forced reboot: adb reboot or for reboot in Recovery: adb reboot recovery

If the adb commands fail, but the smartphone is defined as a Qualcomm HS-USB QDLoader 9008, this means that the device is in emergency mode (EDL). In this case, you will need to restore the firmware through the Mi Flash Tool (instructions in the section about “bricks”).

5. “Brick”: what to do if the smartphone does not turn on at all

If the Redmi Note 4 is not turned on after a failed firmware or reset (black screen, no vibration, no PC), it is called a brick. In most cases, such a device can be restored, but you will need firmware through the computer. EDL-mode.

Signs of a brick:

• 🔌 Smartphone does not respond to charging (indicator does not burn).
• 🖥️ Not defined in Device Manager as Xiaomi or Qualcomm....
• 🔄 No vibration when holding power buttons and volume.

For recovery:

1. Download the official firmware for Redmi Note 4 (model mido) from the Xiaomi Firmware website.
2. Install the Mi Flash Tool and Qualcomm drivers.
3. Connect the smartphone to the PC by holding down the volume button (to log in to Fastboot) or both volume buttons (for EDL).
4. In the Mi Flash Tool, select the downloaded firmware and press Flash.

⚠️ Attention: Firmware through EDL Requires an authorized Xiaomi account (to unlock the bootloader).If you do not have one, contact the service center - self-attempts can lead to complete loss of the service. IMEI.

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If your smartphone is turned on after firmware but not on, check IMEI in Settings → About Phone → General information. If it is missing or consists of zeros, you will need to restore it through an engineering menu (#4636##) or specialized utilities like the SN Write Tool.

6. Hardware causes of hanging: when the "iron" is to blame

If the smartphone freezes regularly, even after resetting, the problem may be the physical wear and tear of the components. The following “iron” malfunctions are typical for the Redmi Note 4:

• 🔋 Bloated battery: presses on the motherboard, causing short circuits. Signs - the screen spontaneously flashes, the smartphone turns off when charging.
• 🔥 Processor overheating: due to dried thermal paste or clogged vents (if any). AIDA64.
• 💾 Flash memory wear: after 3-5 years of use, memory cells begin to “drop” which leads to read/write errors and freezes.
• 📶 Problems with the antenna module: if the hanging occurs when calling or turning on the mobile Internet, the fault may be damaged RF-chip.

For diagnosis:

1. Check the battery visually (if it is swelling - replace immediately!).
2. Install the CPU Monitor or DevCheck app to monitor the temperature and processor load.
3. Memory Test (available in Recovery → Advanced → Memory Test)

If the diagnostics show a hardware malfunction, self-repair can exacerbate the problem, for example, replacing the battery requires a gentle disconnection of the plume, and overheating of the processor is often associated with microcracks on the board that are not visible to the naked eye.

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If the smartphone freezes when connected to charging, never leave it overnight – this can cause a bloated battery to catch fire.

7. Prevention of hangings: how to avoid problems in the future

To make the Redmi Note 4 work consistently, follow these guidelines:

• 📵 Do not update your firmware "over the air" if your smartphone has less than 50% charge. Interrupted updates are a common cause of "bricks».
• 🧹 Clean the cache once every 1-2 months through Settings → Memory. → Cleanup.
• 🔄 Reboot your smartphone once a week – it resets background processes that can accumulate and slow down the system.
• 🛡️ Turn off automatic optimization in Settings → Battery → Battery optimization – it often conflicts with custom applications.
• 📱 Use the original chargers. Cheap cables and power supplies can cause power surges that damage the power controller.

If you plan to use your smartphone for a few more years, consider replacing the heat paste and battery at the service center, which will extend the life of the device by 1-2 years and reduce the risk of sudden freezes.

FAQ: Frequent questions about the freeze Xiaomi Redmi Note 4