Owners of budget but productive smartphones like the Xiaomi Redmi 9 often face the need to move the phone book when changing devices, which can be due to switching from a button phone, replacing a broken gadget, or simply preventing data loss. Keeping contacts on a physical medium is one of the most reliable ways to back up, independent of Google cloud services or Mi Account.
Android, and in particular MIUI 12, provides users with flexible tools to manage records. However, the menu interface sometimes hides the options they need, forcing users to search for them themselves. In this article, we will discuss in detail how Redmi 9 exports numbers to SIM, and also consider the nuances that will help to avoid loss of information.
Before you start, it is important to understand that the SIM card has a limited storage space and storage format, it is not designed to store full profiles with photos, email addresses and additional numbers. However, for basic preservation of the name and primary phone number, this method remains relevant and popular among users.
Preparation for data transfer and verification of restrictions
Before you start the copying procedure, you need to make sure that the SIM card is correctly installed in the slot and is determined by the system. The Redmi 9 model uses a hybrid tray, so make sure that the microSD card does not block access to the microSD card. SIM, If you are using the second slot, check the connection status in the Settings section. → The phone. → SIM-map.
Consider the technical limitations of the card chip. Standard SIM cards often hold no more than 250 entries, and older cards can limit the length of the contact name to 10-12 characters. If your entries contain long composite names, they can be cropped when transferred. The storage format on the SIM card is outdated compared to cloud databases, so full name matches can be lost.
It is recommended to check in advance where exactly your numbers are stored. Modern smartphones use a Google account by default, and the numbers are physically in the cloud, synchronized with the phone. To transfer to the SIM card, they must first be copied to the internal memory of the device or directly exported through the copy function.
⚠️ Note: When you copy contacts from phone to SIM card, the original entries on the phone are usually saved, creating duplicates. However, in the reverse process (import from the SIM card), the old entries can be overwritten or duplicated unless you choose the correct merge mode.
Use of the standard application Contacts in MIUI
The main tool for working with the phone book in Xiaomi Redmi 9 is the pre-installed Contacts app. It is through its built-in menu that import and export functions are accessed. The interface may vary slightly depending on the firmware version, but the logic of the operation remains the same for the entire MIUI ecosystem.
To get started, open the app and go to the settings menu, which is usually hidden behind three dots in the corner of the screen or accessible through the sidebar, and this is the key Import/Export Contact option, which allows you to manage data flows between different storage devices.
☑️ Pre-copying check
In the menu that opens, you'll see a few options. SIM-Map.The system will prompt you to select a source if you have multiple accounts or saves connected.Select Phone or Google Account as the source to transfer the data to a physical chip.
The process can take some time, especially if the phone book is large, at which time it is not recommended to switch between applications or lock the screen so as not to interrupt the recording of data, and after completion, you will receive a notification that a certain number of records have been successfully copied.
Alternative method through the phone application
If the standard contact menu is not available for some reason or is not working properly, you can use the Phone app, which also has access to the number database. In the MIUI shell, these two applications are closely integrated, and settings are often duplicated. Open the call app and find the settings icon or menu.
In some versions of the firmware, the path to the desired function looks different. Try clicking on the profile avatar or menu button at the top of the screen, then select Settings. Next, look for the Import and Export Contacts section. The logic of the action here is completely similar to working through the Contacts app.
This method is especially useful if you have trouble displaying contacts in the main ledger, but calls go well.The phone application often has more direct access to the system functions of the caller and can successfully perform the operation even if the contact interface is “hung”.
What to do if the copy button is inactive?
The only difference is the entry point, and if neither of these methods works, it may be that the problem is the application permissions or the file of the contact database is corrupted.
Import contacts from SIM card to a new smartphone
Once you have saved the numbers to your SIM card, the next step is often to transfer them to a new device. Redmi 9 owners can easily import data by inserting the card into the slot, the system will automatically detect new records and prompt them to copy.
To manually start the process, go to the Settings menu → Contacts → Import/Export: Select the option to Import with SIM-The system will ask you where to save the data: to the internal memory of the phone or to the Google account.
The import process may involve a name conflict if some numbers are already present in the phone's memory. MIUI will offer options: skip duplicates, create new copies or combine records. Read the system prompts carefully to avoid clogging the phone book with repeating numbers.
| Parameter | Saving in the Phone | Save on Google | Save on SIM |
|---|---|---|---|
| Memory capacity | Depends on free memory. | 15GB (standard) | About 250 rooms. |
| Length of name | No restrictions. | No restrictions. | Cut (10-12 simv) |
| Supplementary fields | Email, address, photo | All profile fields | Name and number only |
| Synchronization | Only on the device. | Automatic. | Absent. |
As you can see from the table, saving to a SIM card is a temporary or emergency solution, and the best option for permanent use is a Google account, which ensures the safety of data even if the smartphone is completely broken.
Solving problems when copying
Xiaomi Redmi 9 users may experience a situation where copying is interrupted or ends in an error, often due to overflowing SIM card memory, in which case the system will issue a warning that it is impossible to write, the solution is to clear old unnecessary entries directly from the SIM card through the contact management menu.
Another common problem is name encoding: Cyrillic names can become unreadable characters when transferred to some older SIM cards, which is a limitation of the card chip itself, not the smartphone, in which case the text encoding cannot be changed by the phone's software methods.
If the phone says "copy error," try restarting the device. Sometimes the system services that communicate with the module. SIM, You can freeze. You can do it again after you restart. You can also make sure that the SIM card doesn't have to be on it. PIN-code, or enter it correctly when you request the system.
⚠️ Note: Do not remove the SIM card during the copying or import process, this may damage the file system of the card and lose all data recorded on it, including the network settings of the operator.
Synchronization with the cloud as a modern alternative
In the digital age, physical SIM-based contact storage is slowly becoming a thing of the past, giving way to cloud services. For Redmi 9 owners, syncing with Google Contacts is the most efficient way to store data, allowing them to instantly restore numbers when they buy a new phone.
To set up sync, go to Settings → Accounts and Sync. Select your Google account and make sure the switch opposite Contacts is active. All new numbers will automatically be saved to the cloud. This eliminates the risk of data loss if the device is lost or broken.
Cloud storage also allows you to edit contacts from your computer, add photos, group people into categories, and restore previous versions of your phone book in the past 30 days, a feature that a physical SIM card cannot provide.
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Use Google Contacts to remove duplicates in bulk. The web version of the service has a built-in tool, "Combine and Fix", which automatically finds the duplicate numbers and suggests them to be combined.
However, the ability to work with a SIM card remains an important skill, and in situations where there is no Internet access or a Google account is blocked, it is a physical medium that can be the only way to quickly restore contact with loved ones.