How to transfer contacts from phone to phone SIM-map on Xiaomi Redmi

Xiaomi and Redmi smartphone owners often face the need to keep important phone numbers on a physical medium. This may be required when changing your device to a button phone, temporarily losing access to your Google account, or simply to create an additional backup away from cloud services. MIUI Default offers to store data in the cloud, but the function of exporting SIM-The map is not gone, it is simply hidden in the depths of the contact menu.

The process of copying information to a SIM card chip has its own technical features and limitations, which you should know about before starting the procedure, unlike the internal memory of a smartphone, where you can store thousands of records with photos and addresses, SIM-The card has a very small amount of memory and supports only text data of a certain length. However, for basic number saving, this method remains one of the most reliable and versatile, available on any device.

In this article, we will take a look at the algorithm of actions for data transfer, consider possible errors in copying, and answer frequently asked questions. You will learn how to properly prepare a contact list, what name formats are supported, and what to do if the standard menu path does not work on your version of firmware.

Restrictions and features of storage on the SIM-card

Before you start porting, you need to understand the architectural limitations of SIM storage technology. It's not a full-fledged database, but rather a simple list of records created back in the days of analog communication. The limit of characters in a contact name is usually 10 to 20 characters, so long composite names will be cropped or distorted when saved.

Another critical point is the number of numbers, and for one entry in the phone book of a smartphone, there may be several numbers (mobile, work, home) tied, but SIM-The card is technically only able to save one number to one name, so if you try to copy a contact with three numbers, the system will tell you to choose which number to write, or only copy the first one on the list.

⚠️ Note: When you copy contacts with extended fields (address, email, second phone), all additional information will be irretrievably lost.

Older SIM cards may misrepresent Cyrillic names, turning them into a set of obscure characters or question marks, and in such cases, it is recommended to pre-rename important contacts using transliteration or Latin to ensure that they are readable on any device.

Preparation of a list of contacts for export

To complete the procedure, a preliminary phone book audit is recommended. Chaotic copying of the entire list can overflow the SIM card memory and lose some data in the process. It is best to select only the most important numbers in advance, which should be available always, even if the smartphone is lost.

Check where your current records are stored. On Xiaomi smartphones, contacts can be in your Mi Cloud account, Google, on your device or already on your SIM card. We need those stored in your phone's memory or in the cloud, because it doesn't make sense to copy from SIM to SIM. Open the Contacts app and make sure you see the full list.

If you have a lot of duplicates on your list, it's best to combine them or remove them before you move. Duplicates take up precious memory cells on the chip. There's a built-in cleaning feature in the MIUI shell, but you can use third-party apps or the web version of Google contacts for pre-cleaning for reliability.

Step-by-step: transfer through the standard menu

The most reliable and proven way to migrate data is to use the built-in functionality of the Contacts app. The interface may vary slightly between versions of MIUI, but the logic of the actions remains the same. First, you need to open the application, which usually has an icon of a phone handset or a human silhouette.

Next, you'll find the control menu. Most of the time, it's hidden behind a three-dot button in the corner of the screen or a setting icon. When you click on it, you'll see a drop-down list where you'll choose Import/Export Contacts or Contact Management, and that's where the tools for external media are.

In the menu that opens, the system will ask where to copy the data and where to send it. Choose the source Phone (or Device) and the recipient. SIM-map SIM 1) Once the selection is confirmed, a list of all available entries will appear, and you can tick individual contacts or click "Select all" if you want to move the entire book.

Once selected, press the confirmation button, usually located at the bottom of the screen or in the top right corner. The system will warn you that some data may be lost due to format constraints. We agree and wait for the process to be completed. The copying time depends on the number of records, but usually it takes no more than a minute.

⚠️ Attention: Don't pull out SIM-Do not restart the phone during the recording process, this can damage the SIM file system and lose the numbers already recorded.

Alternative methods and working with two SIM-map

Owners of two-symbol Redmi smartphones often wonder how to choose a specific SIM card to record.In the import / export menu, the system usually offers a choice of the SIM card. SIM-card 1 SIM-Card 2.Be careful when choosing, as the default card may be the first card, even if you plan to use the second card.

If the standard menu does not display the export option to the SIM card (this happens on some global firmware or in stripped-down versions of Android), you can use the workaround: first export contacts to a.vcf file in internal memory, and then use a third-party application, such as SIM Tool Manager or analogues from Google Play, which have direct access to write to the chip.

Another option is to use an old phone as an intermediate, so you can send a contact file via Bluetooth to a button phone or an old device that can copy contacts to a SIM card in a packet. This may seem complicated, but it's often the only way to get around the software limitations of new versions of Android.

When working with two cards, remember that slot names can change after rebooting if the cards have been taken out.Always check the phone number displayed in the settings to make sure you are writing data to the right chip.

Table of comparison of methods of storage of contacts

To help you decide whether you should use a SIM card to store numbers at all, we suggest comparing the basic methods, each with its own strengths and weaknesses, depending on your use goals.

As you can see from the table, SIM-The map is losing out in functionality to digital methods, but it is winning out in autonomy. It doesn't require the Internet, accounts, or sophisticated reading technology. It's an analog way in the digital age that is valued for its simplicity and independence from servers.

Possible problems and solutions

During the transfer process, users may encounter an error message “Not enough space on the site”. SIM-This means that the memory limit of the chip is exhausted, in which case you need to delete old, unnecessary entries directly from the SIM card through the contact menu, filtering the map only.

Sometimes, once you copy, the contact names are displayed as "Unknown Number" or a set of characters, and this is a code problem that you can solve by changing the input language or the display settings on the phone, but most often, it's easier to manually rename the contacts after you transfer them while there are few.

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Tip: If the SIM card ran out of places, and you can not delete old records (they are blocked by the operator), try formatting. SIM-This will remove all contacts and messages from the card, freeing up space.

In rare cases, the Contacts app may freeze when trying to export large amounts of data. 50-100 It'll reduce the workload on the processor and the clipboard, allowing you to complete the operation successfully.

⚠️ Warning: If the phone writes “Write error”, try restarting the device and pasting it SIM-Sometimes the contacts will fail because of the bad contact of the metal plates of the card.

Frequently Asked Questions (FAQ)

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Transfer of contacts to SIM-A card is a reliable way to create an offline backup, but it requires control over memory space and name formatting due to the chip’s technical limitations.