Owning a modern smartphone like the Xiaomi Redmi 9 involves constantly sharing information where phone numbers play a key role. Losing that data due to accidental resets or device breakdowns can be a major problem if you don’t take care of them in advance. Technology offers many ways to secure your call list, from cloud storage to local files.
Many users often ignore the automatic sync setting, relying on memory. SIM-A backup is not just a useful option, but a necessary security standard in the digital age. In this article, we will detail all the available methods to protect your address book on the shell. MIUI.
Syncing with your Google account
The most reliable and versatile way to store numbers is to link them to a Google account, which allows you to instantly restore all records when you switch to a new phone or after a complete reset. To activate this feature, go to the Settings → Accounts and Sync menu and select your inbox.
In the service list that opens, look for Contacts and make sure the switch is activated. If sync is enabled, all new numbers you add will automatically be saved to the cloud, ensuring that even if you physically lose your phone book, your phone book will remain intact.
⚠️ Note: If you change the phone number associated with your Google account, be sure to update the recovery data to avoid losing access to backups.
It's important to understand the difference between on-premises storage and cloud storage. When you create a new contact, the system often asks where to save it «SIM-The card is a critical step for automatic backup: Local records are only tied to the internal memory of a particular device and are not remotely recoverable without prior export.
To force the process to start, you can click three dots in the corner of the account management screen and select Sync, which will update the data on the company's servers by checking it against the ones in the smartphone's memory, usually taking a few seconds with a stable Internet connection.
📊 Where do you usually store phone numbers?
Nana SIM-map
In the memory of the phone
Google account
In a notebook.
Using Mi Cloud Cloud Storage
Xiaomi’s own backup solution, called Mi Cloud, is deeply integrated into the MIUI shell, allowing you to create complete copies of the system, including settings, messages and, of course, contacts. It requires authorization through the Mi Account, which is created when you first turn on the device.
To set up automatic saving, go to Settings → Mi Account → Mi Cloud. Here you need to activate the Contact Sync slider. Unlike Google, this service allows you to create separate system backups that can be deployed at any time.
Free storage is limited to 5GB, which is enough for thousands of text recordings, but may not be enough for photos and videos. Users can expand space for a fee or use the service selectively, the main advantage is the ability to restore data even without a SIM card, access to the Internet and account.
It is worth noting that when you change your account region, some data may become unavailable because Mi Cloud servers are tied to a geographic location, so it is recommended that you export important data locally in advance.
What to do if Mi Cloud is not synced?
Often the problem is the wrong date and time. Check the settings in the Date and Time menu and enable automatic determination. Also try changing your Wi-Fi network or switching to mobile Internet. Export contacts to file. VCF For those who prefer to store data offline or plan to transfer them to a device of another brand, the best solution is to create a file. VCF (This format is a universal standard and readable by almost any phone or email client. The process of creating a backup is as follows: 📂 Open the standard “Contacts” app on your desktop. ⚙️ Click on the menu icon (three bars or dots) and select “Import/Export Contacts». 💾 Select the option “Export to storage” and specify the format.vcf. 📁 Save the file to internal memory or to a map SD. The resulting file can be sent to yourself by email, saved to the messenger or copied to a computer, which creates a physical copy of the data that does not depend on the state of the servers or the blocking of accounts. In case of a complete failure of the smartphone, it will be enough to simply open this file on any other Android or iPhone device. it is recommended to periodically update such a file, especially after adding a large number of new numbers. Storing an archive on an external medium, such as a flash drive or hard drive, adds another layer of protection against digital threats. SIM-Many users when switching to Redmi 9 want to keep the numbers recorded on the old SIM-Although the capacity of the sims is limited (usually up to 250 records), it is still a common method of storage. To import data, open the Contacts app and go to the import/export settings. select Import with SIM-The system will suggest selecting an account to which the numbers will be saved, it is strongly recommended to choose a Google account to immediately secure the data, and if you choose a Phone, the records will only remain in the device's memory. Once confirmed, the copying process will begin, which can take some time depending on the number of entries, and it is recommended to check the list after the operation is completed, since older SIM cards sometimes do not support long names or special characters in numbers. If you damage your chip or lose your card, all data will be lost without recovery. Use this method only as an intermediate step before moving to the cloud. ☑️ Contact security CheckActivated Google Synchronization Created file VCFNumbers imported from SIMAccess to Mi Cloud is verified: 0 / 4 To better navigate the ways of protecting information, it is useful to compare their main characteristics. Each method has its advantages and disadvantages, which should be considered depending on your smartphone usage habits. Network Dependence Storage Volume Difficulty Recovering Google Contacts Required for Synchronization 15 Automatically Mi Cloud Required for Synchronization 5 GB (free) Through the settings of the Mi File VCF No requirement to depend on the carrier manually (import) SIM-No very small importation required with SIM As you can see from the table, cloud solutions provide the most comfort and automation. However, having a local copy as a.vcf file is an excellent insurance against Internet or account problems. Combining methods ensures maximum reliability. You should not rely solely on one method. The ideal strategy involves constantly synchronizing with Google and periodically creating backups to an external medium. This minimizes the risk of data loss to zero. Frequent problems and their solution During the setup process, users may experience various errors. For example, synchronization may not be triggered due to lack of storage space or network connection problems. In such cases, the first thing to do is to check the status of servers and the availability of free space to the external media. System system MIUI It can automatically find the same records and merge them into one card, saving all the associated numbers and addresses. ⚠️ Note: Before combining duplicates, make sure you have a fresh backup, as the process can be irreversible in the event of an algorithm error.Sometimes, the Contacts app may stop responding or close on its own. In this case, it will help to clean the application cache through the Settings menu. → Annexes → All applications → Contacts → Memory. → Clear the cache. This action will not delete your numbers, but will correct software errors. Q&A Where are the contacts physically stored when synchronized with Google? When synchronized actively, the main copy is stored on Google servers in your account. Redmi 9 is only a cached version for quick access. You can check this by logging into your account via a browser on your computer at contacts.google.com. Can I restore contacts if the phone is broken and not turned on? Yes, if you used cloud sync (Google or Mi Cloud). You just need to log in from any other device (computer, tablet or new phone) with the same login, and all the data will be available for download or synchronization. How much space does one contact take up in the storage? Text recording of a contact takes up a negligible amount of space -- a few kilobytes. 10 000 Contacts with photos are unlikely to exceed 100-200 MB. Therefore, the limits in 15 GB 5 The GBs provided by cloud services are virtually limitless to the phone book. What to do if only some numbers are missing after the reset? This could mean that some numbers were stored locally in the phone’s memory and some in the cloud. Check the display settings in the Contacts app (All Contacts filter) and make sure all sources are selected, including: SIM-map and local storage. Is it safe to keep contacts on the SIM-No, it's the least secure method. SIM-The cards are small, do not support long names and additional fields (addresses, email), and if the chip breaks, it is almost impossible to restore data. 💡Regularly check the synchronization status and the availability of an up-to-date file VCF — The guarantee that you will never lose important numbers.