How to copy contacts to a SIM card in Xiaomi Redmi

Moving to a new smartphone or the need to temporarily transfer the phone book to another device often requires the use of a physical SIM card as a storage medium. Device owners Xiaomi, Redmi and POCO face this task regularly, however, the interface of the firmware MIUI and the new HyperOS has its own characteristics that can confuse an inexperienced user. Unlike some other manufacturers, the Android system in these gadgets by default tends to store data in the cloud or internal memory, hiding options for working with the SIM card deep in the menu.

There are several nuances that you should be aware of before starting the procedure. Firstly, the SIM card has extremely limited memory capacity and does not support storing additional fields such as addresses, emails or contact photos. Secondly, the export process may differ depending on the version of the operating system and the model of your device. We will analyze in detail all the steps necessary for secure data transfer, and also consider alternative backup methods that may be more reliable.

In this article we will not just list menu items, but also explain the logic of how the contact system works in the ecosystem Xiaomi. You will learn how to avoid data loss when changing carriers, why sometimes contacts “disappear” after changing the card, and how to properly prepare your phone book for export. The instructions are relevant for most modern models, including the Redmi Note series and the flagship Mi lines.

Preparing a phone book for export

Before you start directly copying, you need to make sure that your contacts are in the right place. Often, users store recordings in a Google or Mi Cloud account, from where direct export to a SIM card is not possible without a preliminary step. Open the application Contact and go to the settings for displaying or managing contacts. Here it is important to check exactly where the records are physically located.

If your numbers are saved in cloud storage, the system will first offer to synchronize them with the internal memory of the device. This is a critical step because SIM card can only (read) data from the phone's local storage. In some firmware versions, when trying to export from the cloud, the button will be inactive or hidden. Make sure that all the necessary numbers are downloaded to the device.

You should also pay attention to duplicates. When copying to a SIM card, the system may not warn about the presence of identical entries, which will lead to confusion when subsequently importing to another phone. Use the built-in duplicate merge feature, which is usually available in the application settings menu Contact. This will save precious space on the card chip.

Step-by-step guide: Export via the Contacts application

The most reliable and standard way of transferring data is through the native phone book application. The interface may differ slightly depending on the version MIUI, but the general logic remains the same. Launch the application Contact on your smartphone Redmi or Xiaomi. In the upper right corner of the screen you will find an icon with three dots or a profile icon - click on it to open the menu.

In the list that opens, select the item Settings (or “Manage contacts”). Next, find the section responsible for importing and exporting data. In some assemblies it may be called simply Import/Export contacts. The system will ask for permission to access the storage; if this is your first time, confirm the action. Now you will see a menu with options for actions.

Select an option Export to SIM card. If you have two SIM cards installed in your device, the system will prompt you to choose which of them (SIM 1 or SIM 2) you want to write information to. Once selected, the contact analysis process will begin. The phone will show a list of numbers that will be copied and warn about possible format restrictions.

• 📱 Press the button Export to confirm the start of the operation.
• ⏳ Wait for the process to complete without turning off the smartphone screen.
• ✅ Check the result by removing the SIM card and inserting it into another phone or through the contacts viewing menu on the SIM.

Please note that long numbers or entries with special characters may be truncated during export. This is a technical limitation of the data storage format on the SIM card chip, and not a bug in the phone. If the number does not fit completely, it may become inoperative, so it is better to duplicate critical contacts in another way.

Features of working in the HyperOS shell and the new MIUI

With the release of the operating system HyperOS and the latest versions MIUI 14, the company Xiaomi slightly changed the structure of the settings menu, trying to simplify the interface for beginners. This has led to some familiar functions, including working with a SIM card, becoming less obvious. In new shells, the export item may be hidden inside the “Organize Contacts” section or require additional confirmation through a screen unlock password.

Users often encounter a situation where the export button is missing. In such cases, try going to the application Phone (dialer), click on the three dots in the corner and select Settings → Advanced → Import and export contacts. Sometimes the system redirects contact management to a separate system application, which is updated through the store GetApps or Google Play.

⚠️ Attention: In some regions and specific firmware builds, the function of direct export to a SIM card can be software limited by the telecom operator or the manufacturer itself to popularize cloud services. If you do not find this option, try updating the Contacts application to the latest version.

It is also worth considering that HyperOS the data compression algorithm when writing to the card has been improved. The system can automatically remove extra spaces and special characters from phone numbers to accommodate more entries. However, this does not guarantee compatibility with older phone models that will read this SIM card in the future.

Alternative backup methods

Given the limitations of SIM cards, experts recommend using more modern methods of storing your phone book. Copying to SIM is more of an emergency measure or a way to quickly migrate to a feature phone. For smartphone owners Xiaomi it is much more effective to use an account Google or Mi Account. These methods allow you to save not only numbers, but also names, addresses, birthdays and photographs.

Export to a file format .vcf (vCard) is the “gold standard” of reservation. Such a file can be saved to internal memory, sent to yourself by email, or uploaded to cloud storage. Unlike a SIM card, a vCard file does not have strict restrictions on the length of the number or the number of characters in the contact name.

To create a backup copy in vCard format, follow these steps: go to Contact → Settings → Import/Export contacts → select Export to storage. The system will create a file that can subsequently be imported to any other smartphone, computer, or even downloaded back to the SIM card (via intermediate import into the phone memory).

Method saving	Capacity	Saves photos	Reliability
SIM card	Up to 500 contacts	No	Low (risk of chip loss)
Google account	Unlimited	Yes	High (auto-sync)
File.vcf	Depends on memory	Yes	High (easy to transfer)
Mi Cloud	Up to 5000 (free)	Yes	Average (depending on the region)

Why are contacts with photos not saved to SIM?

The GSM technical standard used in SIM cards was developed decades ago, when the ability to store graphic images was not provided due to the tiny amount of chip memory. Therefore, when exporting to SIM, all graphic data and additional fields are mercilessly discarded.

Solving problems and errors when copying

During the process of transferring data, users may encounter various errors. One of the most common is the message “SIM card memory is full.” This happens even if you haven't reached the 500 contacts limit, since each entry takes up a different number of memory locations depending on the length of the number and name. Short numbers take up less space than long international formats.

Another problem is that contacts are saved chaotically with or without a country code. This is due to how the number was originally entered into the phone book. Before exporting, it is recommended to bring all numbers to a single format, for example, add the country code +7 or +380 manually. This will ensure that entries are displayed correctly when used while roaming or on other devices.

If after removing the SIM card and inserting it into another phone, contacts are not displayed, check the display settings on the receiving device. Often, by default, the phone shows only contacts from the device memory and accounts, hiding entries from the SIM card. You need to go to the settings of the contacts application on the new phone and enable the checkbox Display contacts from SIM.

⚠️ Attention: Never remove the SIM card during the data recording process. Interrupting the operation may damage the file structure of the card, resulting in the loss of all records and, in rare cases, the need to replace the SIM card with the operator.

Import contacts from a SIM card to a new Xiaomi

After you have moved the SIM card with saved numbers to a new smartphone Redmi or Xiaomi, the data will not appear in the general view automatically. They need to be imported into the phone's memory. Go to the application Contact, open the settings menu and select Import/Export contacts. This time select the item Import from SIM card.

The system will prompt you to select a destination for the imported records. It is recommended to select your account Google or phone memory, but not the SIM card itself (so as not to create duplicates). You can select all contacts at once or mark only those you need by using the checkboxes next to the names.

After the import is complete, be sure to check several random numbers by calling them or opening the contact card. Make sure that the numbers are not truncated and that the names are written correctly. Now your phone book is safely saved in the internal memory or the cloud, and you can use the phone as usual, without depending on the physical card.

• 🔄 Select the option Import from SIM card in the settings menu.
• 📂 Specify the target storage (Google account or Phone).
• ✔️ Confirm the import and wait until synchronization finishes.

What to do if contacts are duplicated after import?

If you notice that after importing from a SIM card you have duplicate contacts (one from the cloud, one from the SIM card), use the “Merge duplicates” function. In the Contacts app, go to Settings → Organize contacts → Merge duplicates. The system will automatically find records with the same numbers and offer to merge them into one card, saving all available information.

Is it possible to copy contacts to two SIM cards at the same time?

No, it is technically impossible to write the same contacts to two different SIM cards in one operation. You will have to repeat the export procedure twice, selecting SIM 1 and SIM 2 in turn. However, it is easier to save contacts to the Google cloud once, then they will automatically appear on any device where you log in with your account, regardless of the number of SIM cards.

Why are some contact names displayed in hieroglyphs or squares?

This is due to encoding incompatibility. SIM cards support a limited set of characters (mostly Latin and basic Cyrillic). If rare characters, emojis or specific characters were used in the contact name, they may be converted into unreadable characters when written to the SIM. When importing back to the smartphone, this cannot be corrected; the name will have to be renamed manually.

How much does the service of copying contacts from a telecom operator cost?

Usually, mobile operators offer the service of backing up contacts to their server for a fee (monthly subscription). However, copying itself to a physical SIM card through the phone menu is a free feature of your smartphone and does not require payment to the operator. Be careful when connecting paid services “Anti-Loss” or “Cloud Contact” if you just need a one-time transfer procedure.

Will contacts disappear from the SIM card if I format the phone?

No, contacts written directly to the SIM card chip are not stored in the phone's memory. Formatting a smartphone (resetting to factory settings) will only affect the device’s internal memory and accounts. The data on the SIM card will remain completely safe, and you can import it again after setting up the phone.