How to transfer contacts with SIM-Maps on Xiaomi Redmi Note 10S: working methods

Transfer of contacts with SIM-Maps on Xiaomi Redmi Note 10S — The challenge that every new smartphone owner faces, despite its apparent simplicity, the process has nuances, from the limits on the number of numbers saved to the risk of data loss if you copy them incorrectly. In this article, we will analyze all the current methods of transfer – from standard tools. MIUI to third-party apps, and explain why some contacts may not be copied and how to fix it.

Features of the Redmi Note 10S (Rosemary codename: The model supports two SIM-You can only transfer contacts from the main one (Slot 1) if you use the second number SIM, you have to temporarily rearrange it. SIM-old-style maps (up to) 4G) They store a limited number of records, usually up to 250, while modern nano-SIMs can hold up to 500. Before starting the transfer, check the free space on the phone: a backup of contacts in.vcf format will require at least 10-15 MB.

Preparation for transfer: what to do in advance

Before you move contacts, follow a few steps that will prevent data loss and speed up the process:

• 📱 Check the version. MIUI. On the Redmi Note. 10S The firmware should be installed not lower MIUI 12.5 - older versions do not have the function of mass export of contacts with the SIM.
• 🔋 Charge your phone to at least 30%. Carry a lot of contacts (300)+) It can take up to 10-15 minutes, and interruption of the process will lead to duplication of records.
• 📇 Clean it up. SIM-Remove duplicate or outdated contacts, which will reduce copying time and reduce the risk of errors.
• 🔒 Disable the screen lock (if it is on).Some transfer methods require confirmation of actions and the phone should not be locked during the process.

Pay special attention to the format of the SIM-card contact storage. Old cards (for example, from the operators of Beeline or MegaFon 2010-2015 release) can use 7-bit encoding, which will result in Russian letters in the names of cranks. In this case, before penos change the encoding in the phone settings to UCS2 (available in the SIM-card settings menu).

⚠️ Attention: If you are using SIM-eSIM-enabled cards, standard contact transfer methods will not work, in which case use the method via export to.vcf (described in section 3).

Method 1: Standard transfer via the Contacts menu

The simplest method, which doesn't require you to install any additional applications, is suitable for transferring up to 500 contacts at a time. MIUI 12.5–14:

1. Open the Contacts app** (an icon with a human silhouette).
2. Slip on three dots in the top right corner and select Contact Management.
3. Go to the section Import / Export contacts → Import from SIM-card.
4. Tick the necessary contacts (or click Select All) and confirm the import.
5. Wait until the process is complete. Contacts will appear in the Device or Phone section.

If after the transfer part of the numbers is not displayed, check:

• 🔍 “Other Contacts” folder – sometimes records with incorrect formatting get there.
• 📵 Display settings: go to Contacts → Settings → Display contacts and enable All Contacts option.
• 🔄 Sync: If contacts are linked to a Google account, update data manually in Settings → Accounts. → Google.

⚠️ Note: When transferring photos of contacts through the standard menu (if they were on the menu) SIM-To save avatars, use the method of exporting to.vcf (section 3).

Method 2: Transfer through settings SIM-map

This method is suitable if the standard import does not work (for example, due to the error "No contacts on the product" SIM»). This transfer is directly through the control menu. SIM-card:

1. Go to Settings. → SIM-maps and mobile networks.
2. Choose yours. SIM-map (usually) SIM 1).
3. Slip on SIM-card Contacts → Import from SIM-card.
4. Please indicate where to save your contacts: phone or Google account.
5. Confirm the action and wait for notification of successful import.

The advantage of this method is the ability to select the target storage (phone or cloud).

If you have duplicated contacts after import, use the built-in merger function: open Contacts → Management → Combine duplicates. The system will automatically find the duplicate records and prompt them to merge.

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If contacts are SIM-maps are displayed as “Unknown number”, before the penos edit them directly on the map: add names through the menu Edit contact in the settings SIM.

Method 3: Export contacts to a VCF file (for backup)

This method is universal and suitable for the Redmi Note 10S with any version of MIUI, and allows you not only to transfer contacts, but also to create a backup copy of them, which can then be restored on another device.

1. Open Contacts → Management → Import / Export → Export to the device.
2. Choose Export with Export with SIM-maps and specify a save path (e.g., internal memory) → Download).
3. The file is saved in.vcf format (for example, contacts_20260515.vcf).
4. Now import this file back: Import from the device → Select the VCF file.

Important: file VCF contains not only numbers, but also additional fields (email, addresses, notes), which are not stored during the standard transfer from the Internet. SIM-This also solves the problem with Cyrillic symbols, where the code is automatically converted to the Cyrillic symbols when exported. UTF-8.

If you need to transfer contacts to another phone (not Xiaomi), just send a.vcf file via email or messenger and import it on a new device, which is supported by all modern smartphones, including iPhone, Samsung and Huawei.

Method 4: Transfer with Third-Party Applications

If embedded tools MIUI They don’t see (for example, they don’t see the contact) SIM-We tested 3 applications that are guaranteed to work on the Redmi Note. 10S:

• 📲 Sim Contacts Backup - exports contacts to.vcf and.csv, supports Russian encoding.
• 🔄 Copy My Data – Transfers Contacts, SMS And photos between devices over Wi-Fi. Suitable for switching from iPhone to Xiaomi.
• 📇 Contacts Optimizer – Remove duplicates and restore lost contacts after transfer.

Let’s look at the Sim Contacts Backup:

1. Install the application and open it.
2. Select Backup from SIM and wait for the scan.
3. Click Export to VCF and save the file.
4. Import the file through Contacts → Import from the device.

The advantage of third-party applications is additional features such as:

• 🔍 Search for duplicates with the possibility of automatic merger.
• 🌍 Convert encoding for old SIM-map.
• ☁️ Automatic upload to the cloud (Google Drive, Dropbox).

⚠️ Note: When using third-party apps, disable battery optimization for them in settings MIUI (Settings → Annexes → Permits → Auto-start, otherwise the transfer process may be interrupted.

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The application side is the only reliable way to transfer contacts with eSIM or damaged ones. SIM-cards that are not recognized by standard tools MIUI.

Problem Solving: Why Contacts Are Not Delayed

If there are errors during transfer, check the following points:

If none of these methods worked, try updating your firmware to the latest version of MIUI. Older versions (below 12.5) often have bugs with importing contacts. Update is done via Settings → About Phone → System Update.

Another radical method is resetting (but only use it as a last resort!).Be sure to back up through Settings → Additional → Backup and Reset before resetting.

How to keep contacts in the cloud after transfer

After successful transfer of contacts with SIM-maps on the Redmi Note 10S It is recommended to sync them with the cloud service, this will protect the data from loss when resetting the phone or replacing it. SIM-Instructions for synchronization with Google Account:

1. Open Settings → Accounts → Google.
2. Select your account and turn on the Contacts switch.
3. Press Sync now.

To sync with Mi Cloud (Xiaomi Cloud):

1. Go to Settings. → Mi Account → Mi Cloud.
2. Turn on the Contacts option and wait for the download to be completed.

The advantages of cloud storage:

• ☁️ Automatic backup – Contacts are updated with each change.
• 🔄 Synchronization between devices – access to numbers from any gadget tied to the account.
• 🛡️ Loss protection – even if your phone breaks, your contacts will stay in the cloud.

⚠️ Note: When you first sync with Mi Cloud, all local contacts (save on your phone) will be deleted if they duplicate cloud records. Before syncing, back up in.vcf format.

FAQ: Frequent questions about contact transfer