How to get root rights on Xiaomi Redmi Note 4X: Complete guide with unlocking the loader

Xiaomi Redmi Note 4X (The codename mido is still a popular choice among Android enthusiasts due to its reliability and deep customization capabilities, and root rights allow access to hidden system functions, allowing you to remove embedded applications. MIUI, Optimize performance and install modified firmware. However, the process of obtaining root on this device has nuances related to Xiaomi’s policy of blocking the bootloader and the features of the architecture of the Qualcomm Snapdragon 625 processor.

Unlike newer models, where unlocking the bootloader can take up to 360 hours of waiting, the Redmi Note is a big deal. 4X It still allows you to circumvent some of the limitations through formal and informal methods, and in this article we will discuss three current ways to obtain root rights: through unlocking the bootloader and installing Magisk, using vulnerabilities in older versions. MIUI, And also an alternative method for locked bootloaders, and we'll focus on the risk of loss. IMEI and problems with the Wi-Fi module after incorrect firmware, which often occur on this model.

Preparation of the device: what to do before unlocking

Before you start getting root rights, you have to do a number of preparatory steps, and neglecting them can lead to a device being "bricked" or a loss of warranty, and we'll start with the most important thing, data backup.

Keep in mind that unlocking the bootloader erases all data from internal memory, including photos, contacts and installed applications. Use Mi Cloud or third-party utilities like Titanium Backup (requires a root for a full backup) to store information.

• 📱 IMEI (You can enter *#06# or in the settings About the phone → General information)
• 🔑 Keys. DRM (Necessary to work with Widevine L1 and HD-content)
• 📂 folder EFS (contains unique data of the communication module, if the network is lost)

Also check the version MIUI and Android in the Settings menu → The phone, for the Redmi Note. 4X The best are considered firmware based on Android 7-9 (MIUI 9-11). Newer versions may have closed vulnerabilities that make it harder to get a root. MIUI 12+, Reverse to the stable version via the Mi Flash Tool.

⚠️ Note: If your device was purchased in China (the domestic version), unlocking the bootloader may require a link to your Chinese Mi Account.

Method 1: Officially unlock the bootloader + Magisk

This is the most reliable and recommended method, but it takes time to wait for permission from Xiaomi, the process consists of three stages: linking the account to the device, applying for unlocking and installing custom recaveri. TWRP followed by a Magisk patch.

First, make sure you have:

• 📱 Smartphone with a charge of at least 60% (during the discharge process, it can cause a failure)
• 💻 Windows computer 7/10/11 and installed Qualcomm drivers
• 🔌 Original. USB-cable (cheap cables may not transmit data to unlock)
• 🛠 The Mi Unlock Tool: Mi Unlock Tool, ADB & Fastboot, TWRP mido

Steps to unlock:

1. Activate Developer Mode by tapping the MIUI version 7 times in your phone settings.
2. Enable USB Debugging and OEM Unlocking in the Developer Menu.
3. Link your Mi Account to your device in Settings → Additionally. → Unlocking the loader.
4. Download the Mi Unlock Tool, log in and plug in your phone in Fastboot mode (clip Volume Down). + Nutrition).
5. Follow the instructions of the program. Unlocking usually takes 72-168 waiting-hours.

After successfully unlocking the bootloader:

1. Install. TWRP The command is fastboot flash recovery. twrp-3.7.0_mido.img fastboot boot twrp-3.7.0_mido.img
2. V TWRP Scroll down Magisk (download the latest version from the official repository).
3. Reboot and check the root through the Root Checker app.

⚠️ Attention: On some firmware MIUI 12+ When the bootloader is unlocked, it may miss the network signal. modemst1/2. For restoration you will need to sew the original non-HLOS.bin via QFilm.

Method 2: Exploitation of vulnerabilities in MIUI (loader-free)

If official unlocking is not available for some reason, you can take advantage of vulnerabilities in older versions. MIUI. This method is suitable for firmware based on Android 7-8 (MIUI 9-10) It doesn't require an unlocked bootloader, but it's less stable and may not work on new updates.

The essence of the method is to use the utility DirtyCOW (CVE-2016-5195), It allows you to get a temporary root through an exploit in the Linux kernel. 4X A special script is adapted that automates the process:

Instructions:

1. Download the archive with the exploit (for example, mido-root.zip) And unpack it on your phone.
2. Install Terminal Emulator from Google Play.
3. In the terminal, execute the commands: su chmod 777 /data/local/tmp/root.sh /data/local/tmp/root.sh
4. After the reboot, check for the availability of the root through the Root Checker.

This method gives you a temporary root that can disappear after rebooting.

• 🔄 Install Magisk Manager and update binary options through it.
• 🔧 Sweep the patch. boot.img using Fastboot (requires an unlocked bootloader).
• 🛡 Disable automatic updates MIUI, so you don't lose your root.

Method 3: Install custom firmware with a pre-rooted core

For users who want not only root, but also a clean Android without shell MIUI, You can install custom firmware like LineageOS or Pixel Experience, which already includes Magisk and is optimized for the Redmi Note. 4X.

Advantages of the method:

• 🚀 Higher productivity due to lack of garbage" MIUI.
• 🔄 Regular security updates from the community.
• 🎨 Ability to fine-tune the interface via Substratum or Android Themes.

Disadvantages:

• 🔋 Possible problems with autonomy (castom firmware is often less optimized for iron).
• 📶 Some camera functions may not work (for example, 48MP regime).
• 🔊 Sound problems in some builds (fixed with patches).

Installation process:

1. Unlock the bootloader (see Method 1).
2. Download firmware (e.g. LineageOS 18.1 for mido) and GApps (Google Services Package).
3. Flow through TWRP It's fine. → Format Data → Install ZIP (firmware) → Install ZIP (GApps) → Reboot.

💡

Before installing custom firmware, check modem compatibility. Some builds require firmware to run a separate patch to work. 4G (file modem_fix.zip).

Solving common problems after getting a root

Even with successful root rights, Redmi Note users 4X We're going to have a lot of problems, and we're going to look at the most common ones and how we can fix them.

1. Disappears. IMEI post-firmware

This is due to damage to the section. modemst1/2 or lack of files nvdata.bin. For recovery:

• 📡 Stitch the original non-HLOS.bin via QFil or Mi Flash.
• 🔧 Use the utility. SN Write Tool for Recovery IMEI (requires a backup).
• 🔄 If the network disappears after a reboot, check the folder rights /data/radio into TWRP.

2. the phone does not load (bootloop)

The reason is incompatibility of the firmware kernel with the Magisk version or damage boot.img. Decision:

• 🔄 Check it out. boot.img Original Firmware via fastboot flash boot boot.img.
• 🛠 Delete the files /data/.magisk and /data/adb through TWRP.
• 🔋 Try booting into Safe Mode (click Volume Down when turned on).

3. Magisk is not working or the root is not determined

Often associated with a version conflict or misinstallation.

• 🔍 Magisk Version (for Android 9)+ 24.0 is needed.+).
• 📱 File availability /sbin/su (If not, reinstall Magisk).
• 🔧 In Magisk settings, enable Zygisk and Enforce DenyList.

💡

If after the firmware custom recavator phone is not loaded in TWRP, It's a quick start. MIUI — So you've got Anti-Rollback protection on, and you've got to flash the full fastboot. ROM firmware.

How to hide root from apps (Magisk Hide and alternatives)

Many applications, especially banking and security games (e.g., banking, Pokémon GO Or SberBank Online, which blocks access on root-righted devices, use built-in Magisk features or third-party modules to get around these restrictions.

Ways to disguise the root:

• 🔍 Magisk Hide (includes in Magisk settings) → Settings → Turn on Magisk Hide).
• 🛡 Universal SafetyNet Fix (bypasses Google SafetyNet).
• 🔄 Change the fingerprint (fingerprint) to the standard for Google Pixel through the module MagiskProp.
• 📱 Using a second user (in Android settings) without root rights for sensitive applications.

To check the effectiveness of masking, use:

• 🔍 SafetyNet Test (checks the status of ctsProfile and basicIntegrity).
• 🛡 RootBeer Sample (tests root detection with popular methods).
• 📊 YASNAC (Advanced SafetyNet verification).

If the app still detects the root:

1. Update Magisk to the latest version.
2. Clear the app data and cache.
3. Add the app to the DenyList list in Magisk.
4. Try an alternative module, such as Riru - EdXposed, to bypass the checks.

Security: How to avoid losing data and breaking your phone

Getting root rights is always risky, but you can minimize it by following a few rules, and the main thing is never to flash files intended for other models, TWRP or boot.img from the Redmi Note 4 (note 4X) This will cause hard brick (irreparable damage).

Basic precautions:

• 🔋 Always check. MD5-hash of downloaded files (firmware, recovery).
• 📡 Use only verified sources: official Xiaomi website, XDA Developers, 4PDA.
• 🔧 Turn off the firmware before the firmware. OEM Lock and Mi Cloud Find Device.
• 🛠 Make a backup section. EFS through TWRP or ADB: adb pull /dev/block/bootdevice/by-name/modemst1 modemst1.img

If something went wrong:

• 🔄 Soft brick (phone turns on but doesn’t boot): run the firmware through Fastboot or TWRP.
• 🔌 Hard brick (no button response): use EDL Mode (requires an authorized Xiaomi account or boxing).
• 📡 Loss of loss IMEI: restore through QCN-file SN Write Tool.

⚠️ Attention: On the Redmi Note 4X Snapdragon-powered 625 there is a bug in which after firmware custom core can stop working module Wi-Fi/Bluetooth. This is due to file damage in the section. /persist. Recovery requires the original persist.img stock-stack.

FAQ: Frequent questions about the root on Redmi Note 4X