Switching to a new smartphone, especially the popular Xiaomi Redmi 4X, Often accompanied by a desire to quickly start working with the device, without spending hours manually entering numbers. Unfortunately, Android doesn’t always automatically offer the best data migration scenario on the first run, especially if you’re switching from a different manufacturer’s device or using an old one. SIM-Users often face a situation where the phone book is empty after the device is turned on, which causes a natural concern and the need to urgently look for solutions.
There are several proven methods of synchronizing your address book, each with its own technical features and suitable for different use cases. The choice of the particular method depends on the format in which your data is stored now: SIM-In a map of an old phone, in backup files or in a competitor’s cloud storage, we will take a detailed look at all the options available so you can choose the most convenient and safe for your situation.
Regardless of the method chosen, the key to success is the correct preparation of the initial data. Backup is not just a recommendation, but a mandatory step that will save you from accidentally losing important information during the transfer process. Modern MIUI tools allow you to migrate almost without user intervention, but understanding the processes will help avoid typical errors.
Import of contacts with SIM-maps 4X
The most traditional and commonly used method, especially for users who are switching from button phones or older Android devices, where the numbers are stored directly on the SIM card chip. SIM-card 4X. After switching on the smartphone and entering PIN-The system automatically recognizes the presence of records in the card memory.
To start the import process, you should open the standard “Contacts” or “Phone” application, which is preinstalled in the shell by default. MIUI. In the application interface, you need to find the settings menu, which is usually hidden behind three dots in the upper right corner or behind the “More” button. In the action list that opens, you should select “Import contacts” and then specify the source «SIM-map».
The system will suggest you choose a destination for stored numbers, and it is important to be careful: the default option is to save your phone, but the best solution is to choose a Google account, which will provide automatic synchronization and data protection in the event of loss of the device. After selecting an account, click the Import button and wait for the process to complete, which usually takes a few seconds.
⚠️ Attention: Memory SIM-The card has technical limitations on the length of the contact name and number of numbers. When imported, long names can be cropped, and additional numbers (mobile, work, home) can be lost if only one number is stored on the card.
After the operation is completed, it is recommended to check several random records to make sure that the display of names and numbers is correct. If you see that some characters are displayed incorrectly (for example, question marks instead of letters), this may indicate an encoding problem, which is solved by re-importing with the choice of another encoding in the settings. SIM-manager.
Transfer through Mi Mover: a standard solution Xiaomi
The MIUI shell installed on the Redmi 4X comes with a powerful built-in tool called Mi Mover, which allows data to be transferred between smartphones without using an internet connection.This method is ideal if you are switching from another Xiaomi phone or even from a pure Android device, since the app is available for download on the Google Play Store. The data transfer speed over Wi-Fi Direct that uses the Mi Mover is significantly higher than Bluetooth speeds.
To get started, you need to install the Mi Mover app on both devices – both on the old phone and on the new Xiaomi Redmi. 4X. Run the app on both smartphones. On the new device, select "I'm a recipient" (or "I'm a recipient") and on the old one, "I'm the sender." The new phone will create a secure Wi-Fi network that the old device will need to connect to by scanning it. QR-code.
Once the connection is successful, the interface will suggest selecting the types of data to transmit. To transfer the phone book, you must tick the box against the item "Contacts." If you also want to save your call history and SMS, you can also select them. Press the "Send" button and monitor the progress bar on the screen.
☑️ Preparation for transfer via Mi Mover
It is important not to interrupt the process or switch between applications during transmission, as this can lead to a connection freeze. The stability of the connection directly affects the integrity of the data transmitted. Once completed, you will receive a notification of successful import, and all the entries will appear in the phone book of the new device.
⚠️ Note: When transferring data via Mi Mover, contacts are saved to the phone’s local memory by default. Immediately after the migration is completed, it is recommended to manually sync them with your Google account so as not to lose data when resetting your settings.
Synchronization through Google Account
The most reliable and modern way to change your phone is to make it almost invisible to the user. If your previous Android smartphone had sync enabled, then all your contacts are already in the Google cloud. To access them on Redmi 4X, just add the same Google account to your system settings.
The process of adding an account is done through the Settings menu → Accounts and sync → Add an account → Google. Enter your account login and password. Once you have successfully logged in, the system will prompt you to choose which data to sync. Make sure the switch opposite the Contacts item is activated (burns in green or blue).
Once sync is up and running, the phone will automatically download all records from the cloud.This method ensures that your contacts are secure and accessible from any device, whether it’s a smartphone, tablet or computer, via the Google Contacts web interface. Additionally, automatic update means that any changes made from another device will instantly impact your Redmi 4X.
| Parameter | Local storage | Google Account | SIM-map |
|---|---|---|---|
| Security of data | Low (depends on phone) | High (cloud) | Medium (physical carrier) |
| Memory capacity | Depends on the phone's memory. | Up to 25,000 contacts | Limited (usually 250-500) |
| Additional fields (email, photo) | Supported | Fully supported | Not supported. |
| Access to PC | No. | Yes (via browser) | No. |
If sync isn’t automatic, you can force it to start. Go to Settings → Accounts → Google → Your account and click the sync button (usually three dots in the corner or a separate button). It’s also helpful to know that deleting a contact on your phone will remove it from the cloud, so be careful when cleaning duplicates.
Import from vCard (.vcf) file
The universal vCard format (.vcf) is the de facto standard for sharing contact information between different platforms and devices. If you have a backup file that was created on your computer or received from another user, the Xiaomi Redmi 4X has no problem recognizing and importing it, a method that is especially handy when mass-transferring thousands of records at once.
To start, place the file with the.vcf extension in your phone’s internal memory or on your microSD card. Open the Files app and find the saved file. When you click on it, the system will automatically prompt you to open it using the Contacts or Import/Export Contacts app.
In the window that opens, you will be asked to select an account to which the data will be stored. Select your Google account for better security or Phone if you need a local copy. Once confirmed, the process of reading the file and adding entries to the phone book will begin, depending on the file size and number of contacts, this can take anywhere from a few seconds to a couple of minutes.
What to do if the file is not opened?
The advantage of this method is that you can pre-check the contents of the file on your computer. You can open vCard in a text editor or a specialized program to make sure that all the necessary fields are available. Data integrity with this method of transfer is usually 100%, since the format supports the transfer of complex data structures.
Use of third-party applications for migration
When MIUI is not working or needs to be ported to iOS (iPhone), specialized applications from the Google Play Store come to the rescue, one of the most popular and reliable solutions is the “Copy My Data” or “Move to iOS” app (for the reverse direction), and “CLONEit”, which uses Wi-Fi Direct technology to create a direct channel between devices.
Consider this process, using the Copy My Data app, install it on both smartphones and connect them to the same Wi-Fi network, launch the app, accept the license terms, and select the type of data to transmit — in this case, "Contacts." The app will automatically detect another device on the network.
Once connected, the transmission will start, and the feature of these applications is that you can select specific contacts, unless you need to move the entire phone book, which is convenient for sorting and cleaning the list before installing it on a new phone.
💡
When using third-party applications, be sure to check the permissions requested. To work with contacts, the application only needs access to the phone book and local network, requesting access to a gallery or microphone can be suspicious.
It is worth noting that some applications may contain advertising or offer paid features, but the basic functionality of the contact transfer is usually free. Once the third-party software is finished, it is recommended to check the contacts for duplicates, since different programs can interpret the formatting of names differently.
Solving and eliminating duplicates
After moving contacts to Redmi 4X Users often face the problem of duplicate records, which occurs when the same contact is stored simultaneously in memory. SIM-Maps, phone and Google account. MIUI It has a built-in tool to solve this problem, which allows you to quickly combine repetitive records.
To clear the list, open the Contacts app, click on the menu (three dots or bars), and select Clear Duplicate Contacts (or Combine Repeated Contacts). The system will analyze the database and suggest combining the matches found. This action will significantly organize your phone book.
If you notice that some fields (e.g. email addresses or job titles) have been lost after importing, format restrictions (e.g. when importing with SIM) are likely selected when saving, in which case only manual entry of missing information or re-importing from a more complete backup will help.
💡
Regularly cleaning duplicates and syncing with your Google account is the key to a clean and secure phone book on your Xiaomi Redmi 4X.
In rare cases, contacts may not be displayed immediately. Check the display settings in the Contacts app: click on the menu and select Contacts to Display. Make sure that it selects All Contacts, not just a specific group or group. SIM-This is a common reason for "losing" numbers after transfer.