How to transfer contacts to the Xiaomi Redmi 8 Pro SIM card

Xiaomi smartphone owners, including the popular Redmi 8 Pro model, often face the need to move the phone book when changing devices or cleaning internal memory.The standard data migration procedure can seem confusing due to the features of the MIUI shell, which hides some system features deeper than in pure Android.

Before you start any data manipulation, it is important to understand where your numbers are stored, as this directly affects the choice of copying method. Modern versions of Xiaomi firmware use synchronization with a Google account or Mi Cloud service by default, making a physical SIM card a secondary storage. However, for many users, transferring to a plastic medium remains the only reliable way to back up or quickly migrate to a button phone.

In this article, we will discuss in detail all available ways to export data, paying special attention to the technical nuances of the Android file system based on Redmi 8 Pro. You will learn how to avoid common mistakes, such as cropping long names or losing additional fields when writing.

Preparation of the device and checking current sources

Before you start taking action, you need to audit the current status of the phone book. Users often mistakenly believe that numbers are stored in the phone's memory, when in fact they can be scattered across different accounts. Open the Contacts app and go to the display settings to make sure that you have selected the viewing mode of all available sources, including Google, Mi Account and local storage.

Special attention should be paid to the number of free cells on your SIM card. Old standards for storing data on carrier chips often limit the number of characters in the contact name and do not support the preservation of additional numbers or email addresses.

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Before transferring, take screenshots of important contacts or export them to a.vcf file on your computer – this will create an additional recovery point in case of a process failure.

It is also worth checking whether the SIM card is correctly installed in the slot, since the Redmi 8 Pro supports two SIM cards at the same time, and the system must clearly identify which one will be recorded.If the card is not defined or displayed as “Calls Only”, recording contacts will not be possible until the network definition problem is fixed.

⚠️ Note: Some carriers block the ability to write numbers directly to the SIM card chip through software restrictions. If you do not see the recording option, contact the communication salon to replace the card with a universal one. USIM.

Exporting contacts through the standard application

The easiest and safest way to migrate data is to use the built-in MIUI shell functionality. To do this, open the Contacts app, which is the default system, and find the menu button, usually located in the upper right corner or hidden under the three-dot icon. In the drop-down list, select Settings, and then go to the Import and Export Contacts section.

The system will offer several options, among which we are interested in exporting to the SIM card. When choosing this action, Redmi 8 Pro will analyze the number of contacts and compare it with the available space on the chip. If there are more numbers than the SIM card can accommodate (usually a limit of 250-500 entries depending on capacity), the system will suggest select specific contacts to transfer or warn you that you can not copy the entire volume at once.

It is important to note that when exported through the standard menu, there is an automatic truncation of names. Alphabetical numeric symbols exceeding 10-12 characters can be cropped, since the SIM card file system has strict restrictions on the length of the subscriber's name string, which is normal behavior for this type of media and does not indicate a malfunction of the device.

Using the Android Settings Menu for Migration

If the Contacts app fails to perform an operation due to software limitations or interface bugs, you can use the Android system settings menu.This method is deeper and often allows you to bypass some user interface limitations. MIUI. Go to Settings. → Annexes → All applications, find in the list of "Contacts" and "Contacts" SIM-map».

Inside the Contacts settings, you need to find the Storage option and clear the cache to eliminate errors in reading old data. Then go back to the main settings menu of the phone and enter the SIM request in the search bar. The system will give a list of available actions related to the SIM card, where the hidden item “Copy contacts” is often present.

With this method, Redmi 8 Pro can request permission to access the phone book, and you need to confirm the action to make the process successful. Unlike exporting through an application, the system method can work slower, as it performs more thorough data integrity checks before writing to the chip.

It's worth remembering that this is the most effective way to move small amounts of data, and if you're planning to move a few thousand numbers, the system can freeze or give you a timeout error, and in these cases, it's better to break it down into several steps, copying the contacts in groups alphabetically.

Work with vCard files and file manager

For advanced users who want to keep full formatting of names, photos and additional numbers, the best solution is to use an intermediate file vCard (.vcf), which allows you to bypass the limitations of the SIM card by name length, storing full information in digital form, which can then be imported to any other device.

First, export the contacts to internal memory. From the import/export menu, select Export to Device Memory or Export to Storage. The system will create a file, commonly called 00001.vcf or the like, at the root of internal memory or in the /MIUI/backup/ folder. You can find this file through the standard Explorer.

Then you need to be careful, you need to open this file and choose a SIM card to import the destination. However, direct entry from the.vcf file to the SIM card is often blocked by Android security above version 10. So the file is first imported into the phone's memory, and then, as described in the previous sections, transferred to the SIM card, but in a clean and compatible format.

Using vCard files is the best way to create an archived copy. Even if the SIM card doesn't accept all the data because of the format, you'll still have a file with the full information that you can save to your computer or send to your messenger.

Features of working with two SIM cards

Xiaomi Redmi 8 Pro is equipped with a hybrid slot or a full tray for two SIM cards, which makes its own adjustments to the copying process. When choosing the action “Copy on a SIM card”, the system always requests clarification: SIM 1 or SIM 2. An error in choosing can lead to the fact that contacts will be on the card, which is currently not used as the main for calls.

If one of the SIM cards is blocked PIN-code, the export process may or may not be interrupted at all. PIN-code when turning on the phone in the security settings, so that the automated copying process does not stand in wait for the password to be entered, which cannot be entered in the background.

Also worth considering is the speed of writing. Cheap or old SIM cards can have very low data write speeds. When copying hundreds of numbers, the process can take several minutes and the screen may go out. It is strongly advised not to interrupt the process by removing the tray until the final success notice appears, as this can damage the file table of the SIM card itself.

⚠️ Note: When copying to a second SIM card, make sure it is active in network settings. Copying to an inactive or operator-locked card is not possible.

Solving common problems and errors

During the transfer process, Redmi 8 Pro users may encounter a message saying “Not enough space” even if the SIM card is new, which is because each record takes up a different number of bytes depending on the length of the name. Short names take up less space, long ones take up more. The solution is one: clear the SIM card of old entries through the SIM card contact management menu before exporting.

Another common problem is contacting names like Operator Name or Service Numbers after a transfer, which occurs when not only user contacts are exported, but system records are also exported. Before copying, manually filter the list with only personal numbers, or use the Favorites feature if it is supported by the chosen export method.

If the process is stuck at a certain percentage, try restarting the device to Safe Mode. To do this, press the off button, and when the off icon appears on the screen, click on it and hold until the offer appears to go to Safe Mode. In this mode, third-party applications will not interfere with the system recording process.

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A SIM card is an outdated medium with tight limits. Always use a Google account for secure storage and sync between devices.

Frequently Asked Questions (FAQ)