Changing a smartphone is always stressful, not so much with getting used to a new device, but with the risk of losing important information. Owners of Samsung flagships are often afraid to move to the Xiaomi ecosystem due to the differences in the shells of One UI and MIUI. However, modern technology allows you to migrate almost without user participation, preserving the structure of folders and even the location of icons on the desktop. The process of transferring information from Samsung to Poco X3 (or Poco X3 NFC/Pro) has become as automated as possible and takes from 15 to 40 minutes depending on the size of the archive.
Before the active phase, both devices must be properly prepared. Make sure that the Samsung battery is at least 60% charged and the new Poco X3 is 80% or higher, as the intensive operation of communication modules and the processor when transferring gigabytes of data can quickly consume energy. Also critical is the presence of a stable Wi-Fi connection, preferably at 5 GHz, since the transmission speed over the 2.4 GHz channel may not be enough for large amounts of media. Don’t rely on 4G/5G mobile Internet for synchronization, this is long and can lead to additional traffic costs.
There are several proven ways to migrate: using the Mi Mover app, recovering through a Google account or manually copying. Each method has its advantages and disadvantages, which we will discuss in detail below. The choice of a particular path depends on the version of Android on the old device and the user's personal preferences regarding the purity of the applications being installed. In any case, competent training will eliminate most potential errors.
Preparation of devices and backup
The first step is to thoroughly clean and check an old Samsung smartphone. Often users forget that there may be “digital waste” in memory that will only increase the transfer time. It is recommended to go to Settings → Device Maintenance → Memory and delete the cache of unused applications. This will not only speed up the process, but also reduce the likelihood of errors when converting data on the Poco X3 side. It is also worth checking for system updates on both devices to ensure maximum compatibility of transmission protocols.
Special attention should be paid to the Google Account. This is the foundation on which to synchronize contacts, notes, calendar and passwords. Make sure that Samsung is fully synced: go to Settings → Accounts and Archiving → Account Management, select your Google account and click Sync. If the sliders are gray or are in the “off” position, the data may not get to the new phone. Contact and calendar sync is exclusively through the cloud, local portability is not required here and even recommended to avoid Google.
☑️ Preparation for migration
A crucial point is to check two-factor authentication. If you use bank applications or specific services, make sure you remember passwords or have access to a phone number to obtain a password. SMS-When transferring data to a new device, some applications may require re-authorization. It is also worth downloading installation files (.apk) of critical programs in advance if they can be removed from Google Play in the region of use of the new smartphone, although for most users this is not relevant.
⚠️ Warning: Do not start the portability process if there is a notification on the Samsung screen that there is a shortage of space or system errors. First, troubleshoot the problem, otherwise the process may interrupt in the middle, which will damage the file tables.
Mi Mover Method: A Standard Solution from Xiaomi
The most efficient and quick way to migrate is to use the Mi Mover app (in some regions it is called Mi Drop or built into the settings wizard). This is a proprietary development by Xiaomi, which is optimized for working with the MIUI and HyperOS shell. The main advantage of the method is the ability to transfer not only media files, but also system settings, alarm clocks, call history and even widget location. To get started on Poco X3, the application is often preinstalled in the Tools folder, and on Samsung it must be downloaded from the Google Play Store.
The process of connecting devices is through creating a local Wi-Fi Direct hotspot. When you run the app on both phones, Poco X3 The server will be the host (Receiver) and Samsung will be the sender (Sender). QR-The old phone's camera will instantly create a secure communication channel. 20-30 MB/s, which is much faster than standard Bluetooth. It is important not to switch between applications and not to lock the screen during the process, as this can break the connection.
Mi Mover's interface allows you to flexibly configure filters. You can choose to transfer only photos and videos, eliminating apps, or vice versa, copy the list of installed programs, but leave the media in place. This is especially convenient if you want to start with a clean Poco X3 without carrying digital debris from the old Samsung. Once you've finished copying, the system automatically prompts you to unpack and install apps if you choose the appropriate item.
What if the Mi Mover can’t see the device?
Google Cloud Use and Synchronization
For users who value minimalism and don’t want to install unnecessary apps, the ideal option is classic sync through Google Cloud. This method does not require the physical connection of phones at a time. All you need is to enter the username and password from your Google account when you first start Poco X3.
Contacts, SMS messages, call history, list of installed apps and their data (if the developer has allowed backup) are restored through the Google Photos service, if the old device was enabled autoload, this ensures that your memories will be safe even in the event of loss or breakage of both phones. However, it is worth considering that recovering a large number of applications can take several hours in the background after the initial setup.
| Type of data | The Google Sync Method | Mi Mover Method | Commentary |
|---|---|---|---|
| Contacts | Automatically. | Automatically. | Better to google to avoid doubles |
| Photo/Video | Through Google Photos | Direct transmission | Google compresses quality (usually), Mi Mover saves the original |
| Annexes | Just the list (downloads again) | APK files + data | Mi Mover is faster for cache games |
| Wi-Fi settings | Yes (via account) | Yes. | Passwords from networks will remain |
| Alarm clocks | No. | Yes. | Important for users with a schedule |
The downside is that it depends on the speed of the Internet connection. If you have a tariffed traffic or weak signal, downloading tens of gigabytes of applications can be a problem. Also, not all application data is transferred through Google Backup, as many developers limit the amount of data or prohibit the backup of sensitive information (for example, banking applications or encrypted messengers), in which case you will have to configure these programs again.
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Syncing through Google is the most reliable way for contacts and documents, but for games with large cache and system settings, it is better to use Mi Mover.
Manual file transfer via PC or cable
Sometimes automatic systems fail, or the user is required to transfer specific files that do not fall into the standard categories (for example, files from hidden folders or documents from the file manager), in which case the good old method of copying through a computer comes to the rescue. You will need a USB Type-C cable (preferably original, supporting high data rates) and a PC with a Windows or macOS operating system.
Connect Samsung to your computer, select File Transfer Mode (MTP) in the notification on your phone screen. Copy the required folders (DCIM, Pictures, Download, Documents) to your computer's hard drive. Then turn off your old phone, connect Poco X3, and transfer files to the appropriate directories. Android folder structure is standardized, so photos from the camera are usually in the DCIM/Camera folder and downloads are in Download.
Alternatively, use of a cable-transmitter USB-C to USB-C, If your computer has a port or use OTG-Modern versions of Android allow you to connect one phone to another as an external drive, but this method is less convenient for mass migration, because it requires manual file selection and does not tolerate system or application settings. 4K, long-range.
⚠️ Warning: When you manually copy through your PC, never use Cut-Paste. Copy first, check the integrity of the files in the new location, and then delete the originals. Transfer errors can result in data loss without recovery.
Transfer of WhatsApp messages and messengers
The issue of transferring correspondence to WhatsApp deserves special attention, since this application stores the message history locally or in the cloud associated with a particular account. Standard methods of transferring contacts here do not work directly for chat history. The most reliable way is to use the built-in backup function in WhatsApp itself on Samsung. Go to Settings → Chats → Backup Chats and click “Create Backup” on Google Drive.
Once you install WhatsApp on Poco X3 and enter the same phone number, the app will automatically detect the backup in the cloud and prompt you to restore it, which works flawlessly if you use the same Google account.
For Telegram, the situation is simpler: all the history of correspondence is stored on servers. You just install the application and log in. All secret chats (Secret Chats) are not portable, because they are tied to a particular device and are not stored in the cloud. If secret chats are critical to you, they will have to be recreated or use the export function, if it is available in the PC version.
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Before resetting an old Samsung, take screenshots of important ones QR-Google Authenticator codes, if you don't use cloud-based code synchronization, or you may lose access to your accounts.
Frequent problems and ways to solve them
Despite the fact that processes are fine, users may encounter difficulties. One common problem is the “Not enough space” error on Poco X3, even if there is space available, which may be due to the file system reserving space for system operations or cache, in which case it is recommended to release an additional 5-10 GB over the required volume, and cleaning the cache of the Mi Mover application before launch also helps.
Another problem is Wi-Fi interruption, and if the phones are far apart or there are many obstacles between them, the speed can drop to zero, and the solution is simple: put the devices next to you, the screens up, and make sure there are no working microwave ovens or powerful sources of radio interference, sometimes it helps to turn off the mobile Internet on both devices so that the system does not try to switch to the cellular network.
There are cases where apps don't open after porting, which is often because the Poco X3 has a newer version of Android installed, and older versions of apps may not be compatible, so you have to go to Google Play or GetApps and update the problematic app to the latest version, and if that doesn't work, the app will have to be removed and installed again.