How to transfer contacts to SIM-Xiaomi Redmi 8 map

Changing a mobile device or the need to transfer the subscriber base to an old device often puts users in front of the need to manually control the phone book. Xiaomi Redmi 8 owners may face a situation where numbers are stored exclusively in internal memory or the cloud, making them inaccessible when installed. SIM-cards to a push-button phone or device from another manufacturer. MIUI It has its own characteristics that must be taken into account for the correct display of data.

The process of saving numbers on the operator’s chip requires care, since the format of data storage on the operator’s chips requires attention. SIM-The limit of the characters for the contact name is usually not higher than the limit of the characters for the contact name. 10-12 The number of fields for a phone is limited to one primary number, and understanding these technical limitations will help avoid losing important information when data migrates between devices.

In this guide, we will discuss in detail the algorithm for safe transfer of contacts, as well as ways to back up through a Google account and the Mi Cloud service. SIM-maps and learn how to fix possible name display errors after transferring.

Technical limitations of the format SIM-map

Before we start mass export, it’s important to recognize fundamental differences in storage architecture: A modern smartphone like the Redmi 8 allows you to store many fields for a single contact: work, home, fax, email, address, birthdays and social media links. SIM technology was developed in an era when voice was the only priority, so it’s physically unable to hold such a volume of information.

When you try to copy a record from the phone's memory to the card, the data is automatically cropped, the contact name will be truncated to the first line or a certain number of bytes, and all additional numbers will be ignored or stored as separate new contacts with the same name, which can lead to duplicates in the phone book of the receiving device.

⚠️ Note: When exporting to SIM-The card is irretrievably lost photos of contacts, email addresses and a second phone number.

Another important aspect is character encoding: If your contacts' names use special characters, emojis or rare Unicode signs, when translated, they can turn into question marks or unreadable characters (crackers). The GSM standard supports a limited set of characters, and complex signs are often replaced by spaces or deleted.

Preparation of the device and check of contacts

To start the work, make sure that SIM-The operator card is correctly installed in the slot of your Xiaomi Redmi 8 and is determined by the system. check for network signal and make sure the card is not blocked. PIN-If you're planning to write automatically, if the card is new or has been formatted, it's ready to receive the data.

Open the standard Contacts or Phone app on your device. You need to make sure all the numbers you need are actually in your phone's memory or synced to your account. Go to the display settings and select the All Contacts option to see the full picture of your phone book.

If you plan to migrate contacts from the Google or Mi Cloud cloud, make sure that sync is complete. Open Settings → Accounts and sync and check the status of the latest sync. This ensures that you are working with the current version of the database, not with an outdated cache.

It is also worth clearing the list of clearly junk records, such as missed calls saved as contacts, or old numbers that are no longer relevant, which will speed up the transfer process and save precious space on the operator's chip, which is often limited.

Step-by-step: Export from internal memory

The most common scenario is to transfer numbers that are already stored in the internal storage of the Redmi 8 smartphone. The MIUI shell provides a convenient built-in tool for managing imports and exports. To begin, open the Contacts app and find the menu button, which is usually located in the upper right corner of the screen (three dots or three horizontal bars).

In the drop-down list, select “Import/Export Contacts” and the system will request confirmation of access rights if you are doing it for the first time. SIM-If you have two cards. SIM-cards, the system will suggest to select a specific slot (SIM 1 SIM 2) for data recording.

Once you select the target card, you'll see a list of contacts that you can move, so you can select individual records by ticking them, or you can use the "Select All" feature at the top of the screen, and be careful when you make mass choices if the number of contacts exceeds 250.

Click the "Export" or "Copy" button, which takes between seconds and a couple of minutes depending on the amount of data, and when you complete the operation, you will receive a successful copy notification or an error message if the card memory is full.

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Exports are best done in small groups. 50-100 contact to control the process and avoid memory overflow SIM-map.

Transferring contacts from cloud services

Many Xiaomi users store their contacts in a Mi Account or Google account. Direct button "Export from Google to SIM" in the standard interface may not be, so an intermediate step is required.

Go to Settings → Accounts and Sync → Google (or Mi Cloud). Make sure the Contacts switch is active. Click three dots in the corner and select Sync. Then open the Contacts app, go to the display settings, and make sure that the tick is in front of your Google account or Mi Cloud.

Now that cloud contacts are listed, repeat the procedure described in the previous section: select Import/Export» → «Exports to SIM-The contacts you can find will also be those that are downloaded from the cloud. Choose the ones you want and copy.

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If there are too many contacts, use the filter in the Contacts app to only display contacts from a particular account, then highlight them all and export them.

There is also an alternative way through the web interface, but it requires creating a.vcf file, downloading it and then importing it to the phone, which is a longer way. For a quick transfer to Redmi 8, direct synchronization through Android settings is the most efficient method.

Solving problems with encoding and cropping names

After the transfer, users often find that the names of contacts are cropped or distorted, for example, the name "Alexander" can turn into "Alexane", and "Ekaterina" into "Ekaterin". SIM-The card uses 7-bit encoding GSM, who is not good friends with Cyrillic and long lines.

Sadly, increase the symbol limit on the side SIM-It's not possible to have a card, it's a physical limitation of the chip, but you can try to optimize names before exporting. If you have contacts with very long names or patronymics, it makes sense to rename them to a shorter format (like just the first letter of the last name) before copying.

If you see question marks or squares instead of letters after export, it means a conflict of encodings. In some cases, changing the regional settings of the phone before export helps, but most often it is a restriction of the receiving device (for example, an old button phone) that can not read UTF-8.

⚠️ Note: Do not try to edit your contacts directly on SIM-map through third-party editorial applications SIM. This can lead to a complete corruption of the file system of the card and loss of all data.

To minimize name problems, it is recommended to use the Latin alphabet for key contacts if you plan to rearrange frequently. SIM-Latin characters take up less space and are guaranteed to be displayed correctly on any equipment.

Frequent errors and ways to fix them

One of the most common mistakes is the message “Memory”. SIM-Even if you see vacant cells, the system may fail to write due to memory fragmentation or reserved system blocks, in which case you need to delete some old or unnecessary contacts directly from the system. SIM-maps through the control menu.

Another common problem is duplicate contacts. Once imported, you may have two copies of the same number: one in your phone's memory, the other on SIM. To avoid confusion, after successful transfer, it is recommended to combine duplicates. In the Contacts app, select the Contact Management menu → Combine duplicates.

There is also a “failure to copy contact” error that can occur when contact is unstable. SIM-Take out the card, wipe its contacts with a soft dry cloth and paste it back until the characteristic click. Make sure the card is right in the tray.

If the export process hangs in the middle, don't take it out. SIM-Wait for the operation to time out or reboot the phone. Forced card extraction during recording can damage the memory sector that controls the phone book.

Alternative backup methods

Given the limitations SIM-For owners of Xiaomi Redmi 8, the most reliable way is synchronization with Mi Cloud. This method allows you to save not only numbers, but also the structure of connections, photos and additional fields.

To activate, go to Settings → Mi Account → Sync and enable Contacts. Now your phonebook will automatically update on Xiaomi server. When you switch to a new phone, just log in to your account and all numbers will appear automatically.

Another reliable option is to export to a.vcf file and save it to an external drive or send it to your own email» → «Exports to internal memory (or to the SD-The resulting file can be stored forever and opened on any device, as opposed to binding to a specific device. SIM-map.

Use of the SIM-as the primary storage facility in 2026 This solution is only suitable for temporary transfer of data to devices without support for cloud technologies or operating systems. Android/iOS. For continuous operation, use the capabilities of the Google account.