Owners of popular Redmi smartphones are often faced with the need to transfer the phone book to a SIM card. This may be necessary when changing a device, performing a factory reset, or simply creating a physical copy of important numbers. The standard MIUI or HyperOS shell has its own characteristics that distinguish it from pure Android.
The main difficulty is that by default the system offers to save all data to a Google cloud account or Mi Account. However, the ability to export to a plastic operator card has not gone away, it is simply hidden in the import/export menu. Physical copy data is a reliable way to protect yourself from losing information in case of problems with your account.
In this article we will analyze in detail the algorithm of actions for different firmware versions. You will learn how to correctly transfer, what formats are supported and what limitations you may encounter when working with the phone book on Xiaomi devices.
Preparing for data transfer
Before you start copying, you need to make sure that the SIM card is correctly detected by the system. Insert the module into the slot and check if the network is displayed. If you are using a dual-SIM device, make sure you know which slot you plan to record numbers on.
It is also worth checking how full the memory of the SIM card itself is. Old communication modules can store a limited number of records (usually up to 250), and the length of the contact name is often limited to 15-20 characters. Modern cards usually do not have such strict restrictions, but checking will not be superfluous.
⚠️ Attention: When transferring numbers from a phone to a SIM card, the contact name is often cut off, and photos and additional numbers (work, extension) are not saved. A SIM card is a basic storage device that does not support multimedia.
Make sure your contact list is up to date. There is no point in copying old or duplicate numbers. It is better to first clean up the Contacts application, merging duplicates and deleting unnecessary entries.
Step-by-step guide for exporting to Redmi
The transfer process is carried out through a standard call management application. The interface may differ slightly depending on the version of MIUI, but the logic of actions remains the same for all Redmi models.
Open the application Contact (icon with a silhouette of a person). At the bottom of the screen or in the top corner, find the menu button (three dots or three bars). Click on it to expand the list of available actions.
In the list that opens, select the item Import/export contacts. The system will ask for permission to access the data if this is your first time. Confirm the action.
☑️ Check before export
Next a menu with action options will appear. You need to select the option Export to SIM card. If you have two active SIM cards, the phone will ask you to choose which one to record to. Select the one you need.
After selection, the system will show a list of contacts available for transfer. You can select specific numbers or click Select all at the top of the screen. Press the button OK or Export to start the process.
Working with two SIM cards
Redmi smartphones often support two SIM cards at the same time. This creates additional logic when managing the phone book. It is important to understand where exactly new numbers are saved and from which card they are read.
By default, new contacts can be saved to the phone memory or Google account. To change this behavior, go to the Contacts app settings. Find the section Display settings or Contact filter.
- 📱 Device memory: the fastest access, but the data will be lost when you reset the settings.
- ☁️ Google Account: safe, synchronizes automatically, does not take up space on the SIM card.
- 💾 SIM card: universal for transfer, but limited storage functionality.
When exporting on dual-SIM models, the system always specifies the target medium. Be careful not to mix up the cards, especially if one of them is corporate or temporary.
What to do if the export button is inactive?
If the menu item is grayed out or missing, check to see if your contacts are hidden. In the application settings, select “Display contacts” and make sure that “Phone” or “Device” is checked, and not just SIM cards. You can only export what is visible in the list.
Solving problems when copying
Sometimes users encounter errors when trying to save data. Most often this is due to the SIM card's memory being full or the module's file system being damaged.
If the process is interrupted or a recording error occurs, try removing the SIM card, wiping the contacts with an eraser and inserting it back. Rebooting the smartphone before starting the operation also helps.
| Problem | Probable cause | Solution |
|---|---|---|
| Contacts are not visible | Incorrect display filter | B menu select "Show all contacts" |
| Error "Memory full" | Limit of records on SIM | Delete old numbers or export in parts |
| Names are truncated | Length limit name | Reduce names manually to 15 characters |
| No "Export" item | Data source - SIM itself | Cannot export from SIM to SIM, you need to import into the phone |
In rare cases In cases, the problem lies in a software failure of the MIUI shell. Clearing the application cache Contact through Android settings (Settings → Applications → All applications → Contacts → Storage → Clear cache) often helps restore functionality.
Alternative backup methods
Saving to a SIM card is not the only and not always the best method (of backup). Modern Redmi smartphones offer more flexible tools that are worth considering as a primary data protection strategy.
Use Mi Cloud allows you not only to store numbers, but also to synchronize the history of calls and SMS. To activate, go to your phone settings, click on the top bar with the user name and select contact synchronization.
Use vCard (.vcf) for a full backup. This format saves photos, addresses and multiple numbers for one name, unlike the capabilities of a SIM card.
Another reliable method is exporting to a file. In the menu Import/export select Export to device memory. A file will be created that you can send to yourself in messenger or save to a flash drive. This is the only way to save contacts along with photos and full names without being tied to cloud services.
Import contacts from other devices
If your goal is not only to save, but also to transfer contacts from your old phone, the process will be reverse. You will need to first import the data from the SIM card into the memory of the new Redmi.
Insert the SIM card with the saved numbers into the new smartphone. Go to Contacts → Menu → Import/export. Select item Import from SIM card. The system will prompt you to select a destination: phone memory or Google account.
- ✅ Select Google Accountif you plan to easily change phones.
- ✅ Select Phone memoryif you need maximum speed and no synchronization.
After confirmation, copying will begin. Once complete, it is recommended to check a few random numbers to ensure the transfer is correct.
⚠️ Attention: MIUI and HyperOS shell interfaces can be updated. The layout of buttons or the names of menu items may change slightly in new versions of Android. If you do not find the described item, look for synonyms (for example, “Copy” instead of “Import/export”).
Regular export of important numbers to a .vcf file or to a SIM card is the best insurance against sudden breakdown of your smartphone or reset settings.
Frequently asked questions (FAQ)
How many contacts can a SIM card on Redmi hold?
A regular modern SIM card can hold from 250 to 500 entries. Old cards may have a limit of 150 numbers. The exact amount depends on the operator and the type of chip.
Are contact photos saved when exported to SIM?
No, the SIM card does not support storing image files. When exporting, only the name (often truncated) and one main phone number are saved.
Can contacts be restored if I have reset the settings?
Yes, if you have previously exported to a SIM card or to the Google/Mi Cloud. After the reset, just insert a SIM card or log into your account and select import.
Why did the contact names become shorter after the transfer?
This is a technical limitation of the GSM standard. The name field on a SIM card is limited by the number of bytes, so long Russian names are often cut to 10-15 characters.