How to transfer contacts to Android SIM card Xiaomi Redmi

Changing your smartphone to a new model from Xiaomi’s Redmi lineup often involves migrating user data, and the most critical part of this process is keeping a phone book, which can be a serious problem. Many users, out of habit or for reliability, prefer to store numbers directly on the Internet. SIM-This method is considered the most universal and independent of cloud services.

But the MIUI-enclosed Android operating system has its own features of working with an address book. Standard algorithms often offer synchronization through a Google or Mi Account account, which is not always convenient when you switch from a button phone or another manufacturer's device. You will need to perform several specific actions in the contact menu to force the data to be copied to a chip.

In this article, we will discuss all the portability options available, and explain the technical limitations of this method. You will learn why storing numbers on a SIM is considered archaic, but at the same time indispensable in certain situations.

Technical limitations and features SIM-map

Before you start copying, you need to understand the physical structure of the SIM card memory, which is not a full-fledged data storage device, but a specialized security module with a very limited amount of memory for storing a phone book. Modern GSM standards allow you to save usually no more than 250 records on the chip, although older cards can hold even less.

The main problem is the format of the data storage, and if the number can be written in the memory of a smartphone in an international format with many additional characters, then the number can be written in the memory of a smartphone. SIM-The map is very restrictive, and it often doesn't support keeping long, multi-word contact names or Cyrillic names in some regional standards.

⚠️ Note: When copying names longer 10-12 Some of the text can be cropped or replaced with question marks due to the limitations of the chip's encoding.

It is also worth considering that one entry in the phone book of a SIM card usually only has one phone number. If the contact on the smartphone has several numbers (mobile, home, work), only the first on the list will remain during transfer, and the rest will be irretrievably lost.

• 📉 The limit of the symbols in the contact name is often just a few. 14-20 sign.
• 📞 One memory cell. SIM Only one phone number is recorded.
• 💾 No support for additional fields: email, address, date of birth.
• 🔒 No way to recover deleted SIM contacts without backup.

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Use the transfer to SIM-map only as a temporary solution or to back up the most important numbers. For basic life, use Google cloud sync.

Preparation of Xiaomi Redmi device for import

The process of transferring data to Xiaomi Redmi requires pre-configuring the display of contacts. By default, the system can hide contacts stored on the SIM card, or not show them in the general list. To manage them, you need to change the visibility settings in the Contacts app.

Open the standard Contacts or Phone app and go to settings. Depending on the shell version MIUI or HyperOS, it can be called Contact Display or Contact Filter, and you can select All Contacts to start reading data from all available sources, including the installed data. SIM-map.

Make sure that the SIM card is correctly defined by the system. → SIM-If the card is displayed as "Not Known" or has read errors, you can't move the contacts - first check the purity of the chip's metal contacts and the density of the installation in the tray.

An important step is to check the space available, and although the SIM card is static, the phone must correctly count its capacity, and if you've used this SIM card to store numbers before, make sure that there are free slots for new entries.

Step-by-step instructions for copying contacts

The transfer process in the Xiaomi interface is quite logical, but hidden in the contact management menu. First, open the Contacts app. In the upper right corner or in the menu (three dots / three strips), find the Import / Export contacts item.

In the menu, select the option Export to SIM-Card (or "Copy from phone to phone") SIM»). The system will immediately alert you that not all data can be saved due to format limitations.Click "OK" or "Continue" to start the process of scanning the phone book.

Then you'll be asked to select the contacts to move, you can mark the individual important numbers, or you can select the option to select all, and once you confirm the selection, the copying process will begin, depending on the number of records, it will take from a few seconds to a couple of minutes.

Menu path: Contacts → Menu (three dots) → Import/export contacts → Export to SIM- card

When the operation is complete, the system will report how many contacts were successfully copied and how many missed, and it is recommended to carefully study this report, as it will indicate numbers that did not fit due to overflow of SIM card memory or incorrect format.

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Export is carried out only in one direction: the data is copied from the phone to the SIM, the initial data in the memory of the smartphone is stored unchanged.

Contacts with Mi Mover and Cloud Services

If a direct transfer to a SIM card is not possible due to format incompatibility or overflow, it is worth considering alternative migration methods offered by the Xiaomi ecosystem.Mi Mover utility allows you to quickly transfer a phone book from an old Android device to a new Redmi without losing formatting.

To use this method, install the Mi Mover app on both devices. Create a Wi-Fi hotspot through a new device and connect an old phone. In the data transfer list, be sure to select Contacts. This method is preferable to a SIM card, since it stores all the fields: names, addresses, photos and additional numbers.

Another reliable option is to use a Google account. On the old device, make sure that contact sync is enabled. On the new Xiaomi Redmi, just log in to the same account when you first set up and the phone book will automatically boot from the cloud.

• 🚀 Mi Mover transmits data to Wi-Fi Direct at high speed.
• ☁️ Google Contacts saves your history of changes and allows you to restore remotely.
• 🔄 Synchronization happens automatically when the Internet is available.
• 📱 This method works even if the new SIM card (Nano-SIM) does not have free memory.

⚠️ Note: When using cloud services, make sure you copy your contacts to your Google account, not your phone’s local storage, so you don’t lose them when you reset your settings.

Table of comparison of methods of storage of contacts

To help you make an informed decision about whether to use a SIM card to store numbers in 2026-2026, we suggest comparing the basic methods. Each has its advantages and disadvantages depending on your smartphone usage habits.

As you can see from the table, SIM-The card is far inferior to modern digital methods in functionality, and its use is justified only in cases where you need to quickly transfer the number base to a button phone or a device without an operating system.

Frequent mistakes and ways to solve them

During the transfer process, users of Xiaomi Redmi can encounter various errors, one of the most common is the message that the contact format is not supported, this occurs when the name contains emojis, special characters or too long composite names that can not be converted into the GSM standard.

Another problem is the copying process freezes. If the progress bar stops in the middle, don't rush to reboot the phone. It can take time with a lot of recordings. However, if the wait is delayed for more than 5 minutes, there is likely a read/write error.

To solve problems, try manually editing problematic contacts before exporting.Simplify names by leaving only the surname and first name, and make sure the number is recorded in an international format (e.g., +7 instead of 8), although the SIM card may ignore the plus sign.

• ❌ “Not enough space” error: clear the SIM card of old records.
• ❌ The “wrong format” error: remove special characters from the contact name.
• ❌ The process does not begin: check whether it is worth it. SIM-Read card only (rarely, but it happens with old cards).

⚠️ Attention: Don't pull out SIM-a card during the process of copying or exporting contacts, which can damage the file system of the chip and completely lose data.

Re-establishment of contacts with SIM-maps on Xiaomi

Once contacts are successfully transferred to the SIM card (for example, from an old phone), they must be imported in memory of the new Xiaomi Redmi.The procedure is mirrored for export. Go to the Contacts app, select the menu and click Import from SIM-map.

The system will suggest you choose a destination, where you will save your numbers. Choose your Google account or Phone. It is recommended to choose a Google account so that in the future you do not depend on a physical SIM card. Confirm the import, and all available records will appear in the phone book.

After successful import, it is recommended to check several random contacts. Make sure that the numbers are displayed correctly and the names are readable. If you see "crackers" instead of letters, then the encoding of the SIM card is different from the system, in which case it is better to use file export (vCard) instead of direct copying.

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After importing the contact with SIM-Smartphone cards are strongly recommended to back up already in the cloud to protect data from physical loss or chip failure.