Transferring contacts to a SIM card in Android Xiaomi

Smartphone owners Xiaomi, Redmi i POCO often face the need to quickly transfer the phone book to a new one SIM card. This may be necessary when changing carriers, switching to another tariff plan, or simply to create a physical copy of important numbers. Despite the fact that modern cloud services offer more convenient synchronization methods, the good old method of exporting to a chip remains in demand due to its versatility and independence from the Internet.

Copy procedure in the shell MIUI or new HyperOS has its own nuances that are not always obvious to the average user. The interface of the contacts menu may differ depending on the version of the operating system Android and regional firmware. In this article, we will analyze in detail the algorithm of actions, possible limitations of the storage format and offer more reliable alternatives for saving your data.

It is worth noting right away that transferring to SIM is not always the ideal solution for a full backup. The number of characters in a contact name is limited, and additional fields such as email addresses or photos often get lost. However, for basic numbers this method works flawlessly. Below are detailed instructions on how to perform this operation on your device.

Preparing the device and checking the data source

Before you start copying, you need to make sure that your contacts are actually in the phone’s memory, and not just in the cloud or on an old SIM card. Open the application Contact and check the list displayed. If you just inserted a new SIM card, make sure that it is correctly detected by the system in the network settings.

It is important to understand the difference between data storage. On modern smartphones Xiaomi contacts are saved in your account by default Google or Mi Account. To be transferred to the chip, they must be physically written to the internal memory of the device. If numbers are synchronized only with the cloud, the export to SIM function may be inactive or you may not see these records.

⚠️ Attention: Before starting mass copying, we strongly advise you to check if your numbers are duplicated. When importing from a SIM card back into the phone, duplicates often appear, which will then have to be cleaned manually.

Make sure that your SIM card has free space. Older chips have a limit on the number of entries (usually 250 to 500 numbers). If your phone book is much larger, you will be able to transfer only a part of the contacts equal to the capacity of the chip.

Step-by-step guide for exporting via the Contacts application

The main method of data transfer is implemented directly in standard phone book application. The algorithm of actions is intuitive, but menu items may be named differently depending on the version MIUI. First, launch the application Contact on the home screen or in the application menu.

In the upper right corner of the screen, look for the menu icon, which usually looks like three horizontal stripes or three dots. By clicking on it, you will see a drop-down list of options. You need to select the item Settings or go directly to the data management section if it is included in the main menu.

Next you should find the section responsible for import and export. In most firmware versions it is called Import/Export contacts. Inside this menu, the system will offer several options for action. You need to select the option Export to SIM card. The system will automatically scan the phone memory and prompt you to select contacts for transfer.

• 📱 Click on the button Select allif you want to transfer the entire phone book.
• 🔍 Use search or manual selection to mark only specific important numbers.
• 💾 Confirm the action with the button Export or Copy at the bottom of the screen.

After confirmation, the process of writing data to the chip will begin. This may take from a few seconds to a couple of minutes depending on the number of numbers. Upon completion of the operation, the system will notify you of successful copying or notify you if some contacts did not fit due to space limitations.

Alternative method through system settings

Sometimes the standard contacts application does not work correctly or the desired menu item is hidden by developers in certain regions. In this case, you can use the Android system settings, which duplicate the contact management functions. This method is especially relevant for older versions Android on devices Redmi.

Go to the main smartphone settings menu via the gear icon. Scroll down the list to the section System applications or use the settings search by entering the word "Contacts". Select the application Contact from the list of system apps.

Inside the application management menu, find the item Import/Export. The logic of action here is absolutely identical to working through the app itself: you select the source (Phone) and recipient (SIM card). This method sometimes works better if the main application is frozen or has not been updated.

Parameter	Via the Contacts application	Via System settings	Via Google Account
Access speed	High (1 click)	Medium (via menu)	Low (required browser/synchronization)
Saving photos	No	No	Yes (in the cloud)
Name length	Limited (up to 15 characters)	Limited (up to 15 characters)	No restrictions
Network dependence	Not required	Not required	Internet required

Using the system menu allows you to bypass some software glitches of the interface MIUI. If none of the methods work, the problem may lie in the application's access rights to the memory or the SIM card itself.

SIM card storage format limitations

It is important for users to be aware of the technical limitations of the technology SIM, which was developed decades ago for other purposes. The main limitation concerns the length of the contact name. Only the first 10-15 characters of the name are usually stored on the chip. If you recorded a contact as “Ivan Ivanovich Petrov,” it may appear on the SIM card as “Ivan Ivanovich” or even “Ivan Ivanov,” which creates confusion.

In addition, SIM card supports storing only one number per name. If a contact has multiple phone numbers recorded (mobile, work, home), only the main number, usually labeled "Mobile", will be saved during export. The remaining data will be irretrievably lost when transferred to the chip.

⚠️ Attention: Photos of contacts, email addresses, birthdays and links to social networks are never transferred to the SIM card. This information is stored exclusively in the smartphone’s memory or cloud profile.

Another nuance is the encoding of names. Sometimes, when transferred, Cyrillic names may be displayed incorrectly (cracking) on ​​other devices if they use a different encoding standard. This is a rare problem, but it occurs when replacing SIM cards in old push-button phones.

Why are names cut off?

The SIM card memory is organized in the form of fixed small cells. Unlike the phone’s flash memory, where the contact name is a text string of variable length, a SIM card has a strictly defined number of bytes allocated for the name, which cannot be expanded.

Problem solving: what to do if the button is inactive

The situation when the menu item Export to SIM card is displayed in gray color or absent altogether, occurs quite often. Most often this is due to the fact that the phone does not see the saved contacts in the local memory. As mentioned earlier, if all numbers are synchronized with Google, the phone "believes" that they are not on the device to copy.

To fix this, you need to forcibly copy contacts from your account to the phone memory. Go to contact settings, select Import from Google account and specify the destination Phone (not SIM card). After duplicates appear in the phone's memory, the export to SIM function will become active.

Another reason may be card protection. Some carriers set a PIN code to the SIM card when you turn on the phone. If the card is blocked, data cannot be written to it. Enter the PIN code through notifications in the curtain or in the security settings to unlock the chip.

• 🔒 Check whether the write ban is set in the security settings of the SIM card.
• 📂 Make sure that contacts are displayed in the "Phone" group, and not just in account groups.
• 🔄 Try rebooting your smartphone after inserting a new SIM card for correct initialization.

If the problem persists, try removing the SIM card, wipe the contacts with a soft cloth and insert it back. Sometimes oxidation of the contact pad prevents the correct recording of data.

Modern alternatives: why the cloud is better than a SIM card

Despite the popularity of transferring to SIM, experts recommend using cloud technologies for backup. The account Google provides unlimited storage space for contacts (within the overall account limit), saves complete information about the person and automatically synchronizes changes across all devices.

Owners Xiaomi also have access to the service Mi Cloud. It allows you to create complete system backups, including your home screen layout and application settings. Restoring from the cloud is faster and more reliable than manually searching through contacts when inserting a SIM card into a new phone.

The function MI Mover (Mi Transfer) is ideal for transferring contacts between two Xiaomi phones. This is a built-in application that transfers all data via Wi-Fi Direct without using the Internet and a SIM card. The process takes minutes and saves absolutely all data without loss of quality.

⚠️ Attention: The settings interface and the names of menu items may vary slightly depending on the version of MIUI (12, 13, 14) or the new HyperOS. If you do not find the described item, use the settings search.

Using vCard (.vcf) files is another reliable way. You can export all contacts into one file, save it to a flash drive, or send it to your messenger. This file can be opened on any device, and all contacts will be added en masse to the phone book.

How to create a vCard file?

In the Import/Export menu, select "Export to storage". The system will create a file with the extension .vcf in the root of the internal memory. It can be found through Explorer and copied anywhere.

Frequently asked questions (FAQ)

Is it possible to transfer contacts from a SIM card back to a Xiaomi phone?

Yes, it is possible. In the same menu Import/Export contacts select the option Import from SIM card. The system will prompt you to choose where to save the numbers: to your Google account, Mi Account or to your phone memory. It is recommended to select a Google account for automatic synchronization.

Why, after transfer, contact names are displayed as questions or hieroglyphs?

This is an encoding problem. It often occurs when transferring contacts from old phones or SIM cards formatted in a different encoding. Unfortunately, it is difficult to fix this at the SIM card level. It is best to import such contacts into your phone, and then manually edit the names.

How many contacts can one SIM card hold maximum?

The standard capacity of a modern SIM card is from 250 to 500 entries. The exact number depends on the carrier and the type of chip (USIM). If you have more numbers, the system will offer to copy only part of them or will require you to delete old entries.

Will contacts disappear from the phone if I transfer them to a SIM card?

No, the export operation creates a copy. The original contacts will remain in the memory of your smartphone. If you want to move them (rather than copy them), you will need to manually delete contacts from the phone's memory after successfully writing to the SIM.

Is it possible to transfer contacts if the phone does not turn on?

No, the phone must be working and turned on to complete the transfer procedure. If the device does not work, the only way to save contacts is to remove the SIM card and insert it into another working phone to read the data from the chip (if it was already recorded there earlier).