Shift. IMEI On Xiaomi Redmi devices, this procedure raises many questions for advanced users trying to restore the functionality of the smartphone after a failed flashing or wanting to hide their identity on the network. Unlike simple system settings, changing this unique identifier requires a deep understanding of the Android architecture and the risks associated with interfering with basic hardware settings. Many owners face a situation where, after installing custom firmware or a module failure, they are not able to use the software. NVRAM The phone stops seeing SIM-map or displays a zero code.
It should be emphasized that in most countries of the world, changing the IMEI is a legally controversial or completely prohibited action, since this number is used to block stolen devices at the operator level. However, from a technical point of view, the process of restoring or replacing the factory value is possible with the presence of Root rights and specialized software. In this article, we will discuss the technical aspects of the procedure in detail, not calling for violation of the law, but providing comprehensive information for those who restore their gadgets.
It is worth noting that modern versions of MIUI and HyperOS shells have enhanced protection against unauthorized changes to critical data. Attempting to change IMEI on a locked bootloader is impossible without using paid authorized Mi Account accounts. This is an important nuance that beginners often miss when trying to use old instructions. Before starting any manipulations, you should weigh all the pros and cons, since an error can turn a smartphone into a brick without the ability to restore network functions.
What is IMEI and why should you change it to Redmi?
International Mobile Equipment Identity is a unique 15-digit code assigned to each mobile device in production. It serves as a phone passport on cellular networks, allowing operators to identify equipment and provide communication services. In Xiaomi smartphones, this code is stored in a special memory section, access to which is limited for the average user.
Often users are looking for a way to change the IMEI on the Redmi Note or other models to bypass the carrier lock. If the phone is lost and locked using a unique code, changing the ID theoretically allows the device to be brought back to life. However, it is worthwhile to understand that modern 4G/LTE and 5G networks use additional authentication methods, and simply changing the number may not have the desired effect.
On the technical side, it involves low-level modem commands, using special engineering modes or programmers, and without deep knowledge of telecommunications, it's easy to damage the software part of the modem, which will lead to a lack of signal even if there is a signal.-valid SIM-So the approach should be as careful and balanced as possible.
β οΈ Attention: Change IMEI This information may result in the operator blocking the device or the manufacturer's warranty being cancelled, and only use this information to restore the performance of your own equipment for educational purposes.
It's important to distinguish between "shift" and "recovery." If your phone lost code due to a malfunction, a return to a factory value is a repair. If you plan to set a random number to hide your identity, it's bypassing security systems. In the context of this article, we're going to look at the technical methods that apply to both scenarios, but with a focus on restoring functionality.
Necessary tools and device preparation
Before you start changing system identifiers, you need to prepare a software environment. Android standard means to do this is impossible, so you need third-party software. The main requirement for most methods is the presence of superuser rights (Root). Without them, access to the modem configuration files will be closed. The most popular tool for obtaining rights is Magisk, which allows you to modify the system without full firmware.
In addition to Root rights, you often need an unlocked bootloader. In Xiaomi devices, this is done through the official Mi Unlock Tool on your PC. The unlock process completely clears the user's data, so you need to back up important information in advance. You will also need a computer with drivers installed. ADB and Fastboot, and USB-A good quality cable that can transmit data, not just charge the battery.
The most common applications for direct code change are those that are available in the public domain or in the forums, including Chamelephon, Xiaomi IMEI Changer, and MTK Engineering Mode. The choice of a specific tool depends on the processor of your device: MediaTek or Qualcomm Snapdragon. The processor architecture dictates the method of accessing NVRAM memory.
βοΈ Preparation for the procedure
Remember, there's a high risk of error when you're working with system files, and one wrong command can cause the phone to stop detecting. SIM-So the preparation involves not only installing the software, but also morale about the possible outcome. Make sure you download the version of the program that is compatible with your version of Android.
Method through Engineering Mode (for MediaTek processors)
MediaTek-based devices (such as some entry-level Redmi models) have built-in engineering menus that can be accessed via a standard dialer, which is considered the easiest method, since it does not require additional software to be installed unless the menu is blocked by the manufacturer.
Once you enter the engineering menu, you go to the Connectivity tab, then select CDS Information and then Radio Information. Here you will see the command fields. To set the new IMEI, you enter the AT+EGMR=1.7 command "YAS IMEI" for the first SIM card and AT+EGMR=1.10 "YAS IMEI" for the second. It is important to observe the syntax: quotes and commas should stand exactly as indicated.
Once you enter the command, press the Send AT Command button. If it goes well, the system will respond with OK. After that, you need to restart the device. However, newer versions of MIUI often close access to this menu and input fields may be inactive, in which case you need to use special patches or activator applications, such as the MTK Engineering Mode from the Play Market.
β οΈ Note: In the engineering menu, do not change other settings unless you are sure of their purpose.Resetting the radio module settings can lead to loss of Wi-Fi and Bluetooth signal.
It is worth noting that the method through Engineering Mode only works if the NVRAM partition is intact and has the correct structure. If the phone was flashed with the wrong firmware (for example, global to the Chinese version or vice versa without conversion), this partition may not be readable, in which case simple AT commands will not help, and deeper intervention through the PC will be required.
Using root applications to change the identifier
For smartphones where the engineering menu is unavailable or blocked, applications that require superuser rights are used. One of the most popular solutions is the Chamelephon app, which is available on Google Play and allows you to change IMEIs on root-access devices. The interface is simple: you enter a new 15-digit code and click the application button.
The process of using such applications is as follows: after installing and granting rights to Root, the program reads the current identifiers. You enter new values in the corresponding fields. The application then writes the data to the system file /data/nvdata/WIFI or similar, depending on the model. After recording, a mandatory reboot is required. On Xiaomi devices with Snapdragon processors, this method may require steps, since the memory structure of Qualcomm is different from MediaTek.
There are also specialized utilities like Xiaomi IMEI Changer that are specifically tailored to the Mi ecosystem. They can automatically determine the device model and offer compatible recording methods. However, the effectiveness of such programs varies from the Android version. On Android 10 and above, Google has imposed strict restrictions on access to hardware identifiers, so older versions of applications may not work.