Ownership of Xiaomi Redmi Note 4X It often involves solving system access problems, and users are faced with situations where the pattern lock is lost, lost, and lost. PIN-You want to get extended permissions to install custom firmware, unlocking your phone in this context can mean two fundamentally different processes: restoring access to the interface or removing software restrictions of the bootloader.
In this article, we will take a closer look at both scenarios, focusing on the specifics of the Snapdragon 625 platform on which this model is based, learn about the risks associated with data loss, and understand what tools are needed to safely conduct operations.
Before you start taking action, you need to be clear about the difference between resetting settings and engineering unlocking. The first option will return you to the menu, but delete photos and contacts. The second option will open the door to modify the system, but require waiting and registering an account. Official unlocking the bootloader on the Redmi Note 4X is only possible after 168 hours (7 days) of waiting from the moment of attachment of the account.
Determination of the type of lock and preparation
The first step is always to make an accurate diagnosis of the situation. If the device screen is glowing, but the system requires you to enter a code that you don't remember, it's about locking the screen. In this case, resetting the data is the only way to bring the phone back to life if there's no backup. However, if the device is getting stuck on the Mi logo or requires activation after flashing, the problem lies deeper.
For any manipulations you will need a computer running Windows, serviceable USB-cable and stable Internet connection. ADB And the Fastboot has to be installed in advance, because without them, communication with the phone in engineering mode is impossible. 4X.
It is also important to check the status of the Mi Account, and if the phone was previously linked to the account, it will request a login and password after the reset, and without this data, it will not be possible to legally unlock the device, which is part of the Find Device security system.
⚠️ Warning: Attempts to bypass Mi accounts through third-party services can result in a full blacklist (Motherboard) lock.Use only your credentials or formally request the removal of the lock.
Preparing the workspace is not just a formality: Make sure the smartphone battery is at least 60 percent, and suddenly turning off power while writing system partitions can damage the partition table, requiring intervention in hardware.
Resetting the pattern lock via Recovery Mode
The most common method of retrieving a forgotten password is to use the recovery menu, which does not require a computer, but completely deletes user data. To log into Recovery Mode on the Redmi Note 4X, you need to turn off the phone and pinch the key combination.
Press the volume button and the power button at the same time. Hold them until the Mi logo appears, then release the power, continuing to hold the volume. In a few seconds, the main menu will open, where the navigation is carried out by the volume buttons, and the choice is confirmed by the power button.
You need to find Wipe Data, which in some versions of MIUI can be hidden in a submenu or require you to enter a special code if you have enhanced protection, and after selecting the item, the system will warn you of the consequences.
- 📱 Select Wipe All Data for a complete reset.
- 🔄 Confirm the action by selecting Confirm.
- ⏳ Wait for the process to be completed, which will take a few seconds.
- 🚀 Press Reboot to restart the system.
Once you reboot, the phone will look like a new one, and you'll need to reset the original setup and enter the Wi-Fi data, and if the device was linked to an account, the system will require authorization, which is the standard owner verification procedure.
⚠️ Note: If after reset, the phone requires a password from a previously synchronized Google account (FRP), It's impossible to get around it without data.
Unlock the bootloader with the Mi Unlock Tool
For those planning to install custom firmware (like LineageOS or Pixel Experience) or obtain root rights, unlock the bootloader (Bootloader) is the official Mi Unlock Tool, the only safe way to do this.
Go to your phone settings, select About Phone, and click on the MIUI version several times to activate the developer menu. Then, in the advanced settings, look for Mi Unlock Status and link your account.
When the waiting period expires, put the phone in Fastboot mode, pressing the volume down button and connecting USB-Start Mi Unlock on your computer, log in to the same account and follow the instructions on the screen.
fastboot oem unlockThis command, although executed automatically by the utility, is key to understanding the process: it removes the digital signature from the bootloader, allowing unsigned images of the system to be downloaded, and after a successful operation, the phone automatically restarts and clears all data.
| Parameter | Value before unlocking | Value after unlocking |
|---|---|---|
| Loader status | Locked | Unlocked |
| Firmware capability | Only official MIUI | Any compatible firmware |
| Root rights | Unavailable. | Available (via Magisk) |
| Security of data | Tall. | Medium (care is required) |
It is worth noting that an unlocked bootloader makes the device more vulnerable to malware if the user is careless, and some banking applications may refuse to work without further manipulation to hide the rights of the superuser.
Using Fastboot to Firmware the Stock Version
If unlocking the screen didn’t help or the system is unstable, you may need to completely flash through Fastboot mode. For the Redmi Note 4X (codename nickel), this is often a salvation from software errors. You will need a firmware image with the.tgz extension, not.zip.
Unpack the firmware archive in the root of the C disk so that the path does not contain Cyrillic and spaces. flash_all.bat (for Windows, by making sure the phone is in Fastboot mode and connected to a PC. 300 before 600 seconds.
☑️ Checklist before Fastboot firmware
When you're firmware, you're going to see status lines in the console window, and if you see Finished. Total Time: xxxs, it's a success, and if you see red lines with an error, it indicates a problem with the connection or integrity of the firmware file.
It is important to use the firmware version that matches your device’s region, or the global version if you are deliberately changing region, and switching from Chinese to global sometimes requires you to unlock the bootloader first.
⚠️ Note: Interrupting the firmware process through Fastboot (disabling the cable) can damage the boot or recovery partition. EDL regime.
The Redmi Note 4X (Snapdragon)
The Redmi Note 4X is unique in that it comes in two main variants: the Snapdragon 625 (nickel) and the MediaTek Helio X20 (omega) processor, the unlocking and firmware methods for them are radically different. The tools for MediaTek will not be suitable for Snapdragon and vice versa.
The Snapdragon version is characterized by high stability and widespread support from the development community, and it is for this version that there are the largest number of custom Recovery, such as TWRP. Installing TWRP allows you to make full backups of the system before the experiment.
How to distinguish Snapdragon from MediaTek?
If you own a version on MediaTek, the procedure for unlocking the bootloader in the official way may not be available or limited, in such cases, paid services or specific utilities are often used, which carries increased risks.
It’s also worth mentioning that on a Snapdragon processor, it’s easier to restore the device via a Snapdragon processor. EDL Qualcomm Emergency Download, if the software failure is critical, often enough to close certain contacts on the board or use a special command ADB.
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Save the file. device_info.txt It's a folder from Mi Unlock, after you've successfully unlocked it. ID Device that may be needed when re-assigning an account.
Decision and activation errors
During the unlock process, users often encounter an error called “Couldn’t verify device” or “Error 10008.” This may mean that Xiaomi servers are temporarily unavailable or that the account session has expired. Try re-assigning the account in the developer settings and wait 24 hours.
Another common problem is that the phone is not defined in Device Manager as Android Bootloader Interface. In this case, you need to manually update the driver by selecting it from the list. USB-devices or install the Qualcomm package HS-USB QDLoader 9008 for mode EDL.
If the phone writes "Device locked" after reset when trying to load a custom recavator, then the bootloader is not unlocked. Do not try to sew modified images onto the blocked bootloader - this is guaranteed to lead to a bootloop (cyclic reboot).
- 🔌 Check it out. USB-Port: Connect the cable directly to the PC motherboard, avoiding hubs.
- 🛡️ Disable Antivirus: Windows Firewalls Sometimes Block Mi Unlock Connection.
- 🌐 Change the network: try to distribute the Internet from your phone if your home provider blocks ports.
In the event of a “brick” (black screen, charging only reaction), you will need to switch to EDL mode. For the Redmi Note 4X, this is often done by disassembling the case and closing the Test Point contacts on the motherboard, since the program input to the EDL can be blocked.
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The most common reason for failure is inattentive reading of error messages on a computer screen. Mi Unlock always writes a specific reason for failure.