How Mi Mover works in Xiaomi: a complete analysis of the technology

Changing a smartphone can be a stressful experience, especially when you need to transfer hundreds of contacts, important documents and correspondence history. Owners of Xiaomi and Redmi devices can breathe a sigh of peace, because they have a powerful tool called Mi Mover, a system application that allows you to clone the contents of one device to another without using cloud storage or a computer.

The principle of the program is based on the creation of a local wireless network, which provides high speed transmission of large amounts of information. USB-Mi Mover uses direct connection between gadgets, minimizing delays and ensuring the stability of the process even when carrying tens of gigabytes of data.

In this article, we will analyze in detail the algorithms that the system uses for synchronization, consider the nuances of working with different versions of Android and answer the questions that most often arise from users when you first set up a new device.

Data Transfer Technology: Wi-Fi Direct in Action

The core of the app is Wi-Fi Direct. Unlike standard Bluetooth, which is too slow for today's data volumes, or conventional Wi-Fi, which requires a router, Wi-Fi Direct allows devices to connect directly to each other. When you start a process, your old phone creates an access point to which the new device connects.

This connection is local and does not consume mobile operator traffic. The bandwidth of the channel can reach values close to the theoretical maximum of 802.11ac if both devices support this protocol, which is why transferring 50 GB of photos and video can take only 10-15 minutes, which is ten times faster than wired copying through the old USB 2.0.

⚠️ Warning: While the Mi Mover is running, the phone screens may get hot, which is a normal reaction of Wi-Fi modules to heavy loads, but it is better not to cover the devices with a cloth.

The system automatically selects the optimal frequency range. If both smartphones support 5 GHz, the transmission will go through it, ensuring maximum speed. Otherwise, the system will switch to 2.4 GHz for compatibility.

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The data transfer speed directly depends on the distance between the devices: keep them close, but not close, so as not to block the antennas with housings.

Preparing the old and new device for migration

Before you start the procedure, you need to make sure that both smartphones are ready to go. On the new device you just bought, the Mi Mover app is often preinstalled and is in the Tools folder. On the old phone, download it from Google Play or GetApps if it was removed.

The process of cloning energy-intensive, and suddenly turning off one of the participants can damage files or have to start over, and it is recommended to charge both devices to a minimum of 60-70% before starting.

It is also worth freeing up space on the receiving device. Although the system usually warns of memory shortages, it is better to make sure that the amount of free memory on the new phone exceeds the amount of data on the old one.

Be sure to unlock the screens of both devices.Some Xiaomi models with aggressive battery optimization can break the connection if the screen goes out, so in the power saving settings, it is better to temporarily turn off sleep mode.

Step-by-step algorithm of connection and setting

The process of launching and pairing is intuitive, but it has its own technical features, and first you choose the role of the device: "Old phone" or "New phone." It's not just a formality, because it depends on which initiation protocol will be launched.

The new device is generated QR-An old phone scans that code with a camera, and then it does a handshake procedure -- exchange encryption keys and authentication of devices -- that protects your data from being intercepted by other devices that may be nearby.

Once you've successfully connected, you open up a data selection menu, and you see categories like contacts, messages, call logs, apps, system settings, photos and videos, and Mi Mover allows you to flexibly customize what you want to copy and what you can leave in the old place.

It is important to note that passwords from Wi-Fi networks and some system settings are only transferred between devices based on MIUI or HyperOS. When switching from other Android smartphones, the list of options available for porting can be limited.

What data is transferred and what remains

Understanding what exactly the software is copying will help avoid frustrations. Mi Mover can port not only files, but also folder structure, as well as data within applications (if Android’s security policy allows), but there are nuances with banking applications and instant messengers.

For instant messengers like WhatsApp or Telegram, a separate backup is often required inside the app itself. Mi Mover can copy the application file itself (APK), but the history of correspondence is stored in a secure database, access to which is limited, so chats are better saved separately through the messenger cloud.

Below is a table showing the compatibility of the data being transferred depending on the type of device.

Apps deserve special attention. If you move from a phone of another brand, Mi Mover will simply download application installation files from the Internet or transfer them over the air, but will not save logins and progress in games.

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When transferring from iOS, use the Import from iOS feature, which requires you to enter a password from iCloud.This is the only legal way to collect contacts and photos from your iPhone without a computer.

Solving common errors and interruptions

Despite the stability of the technology, the process can sometimes be interrupted, most often because the application goes into the background or the lock screen on one of the devices, the MIUI system is known for its strict energy savings, which can "kill" the transfer process if it considers it inactive.

To avoid this, both devices must disable auto-cleaning for Mi Mover, go to the battery settings, find the app, and select No Limits mode, which will give the process priority in the system.

⚠️ Note: If the transmission is suspended 99%, Don't rush to interrupt. Often, at this point, you're finalizing a database or indexing media files, which can take up to a few minutes. 10-15 minute.

Another problem is the conflict of Android versions: When you switch from a very old version (like Android 6) to a new one (Android 13/14), some system file formats may not be compatible. In such cases, Mi Mover may skip a specific file by issuing an error report at the end, but will not interrupt the entire process.

If the error repeats, try to turn off mobile internet on both devices, leaving only the Wi-Fi module active. Sometimes the system tries to check for application updates during transmission, which creates network conflicts.

Security and privacy in cloning

The issue of data security when using Mi Mover is of concern to many users. Since the transfer is over the local Wi-Fi Direct channel without access to an external network, the risk of data interception by hackers from the Internet is completely eliminated.

However, if you are in a place with a large crowd (office, cafe), it is theoretically possible to create a fake hotspot with a similar name. So always check that you are connecting to your phone device, checking the model or unique identifier, if it is displayed.

Once the transfer is complete on the old device, it is recommended to perform a full factory reset, especially if you plan to sell or give it away. Mi Mover does not delete data from the old phone, it only copies it, leaving the originals intact.

For enterprise devices, there are additional security policies that can block the application, and in such cases, you should contact the system administrator for temporary permissions or use special profiles.