How to save phone numbers on SIM card on Xiaomi Redmi Android

Owners of Xiaomi, Redmi and Poco smartphones often face the need to transfer contacts from the internal memory of the device or cloud storage to the physical. SIM-This action may be required when changing your smartphone to a button caller, selling a device, or simply backing up important numbers regardless of your Google account. Despite the fact that modern operating systems are increasingly focused on cloud technologies, the possibility of local storage on a chip remains in demand.

However, the interface of the MIUI or HyperOS shell does not always intuitively tell you where exactly the desired function is hiding. Users often get lost in the menu or can not find the export button, as the logic of working with contacts in Android periodically changes developers. In this article, we will discuss in detail all possible ways to transfer data, paying attention to the nuances of working with different versions of the firmware.

It is also important to understand the limitations of storage format. SIM-The card has extremely limited memory and outdated field structure, which can lead to loss of information during transfer, we will consider which data will be stored and which will be irretrievably lost, and how to minimize the risks when migrating the phone book.

Preparation for the transfer of contacts and data verification

Before you start manipulating a phone book, you need to make sure that the original data is in good condition and is available for copying. Often users try to copy numbers that are physically located in the Google Contacts cloud or on the Mi Account, and do not see the option of exporting to the SIM until they change the display.

Open the standard Contacts app and go to the display settings. Make sure you select all contacts or specifically those stored in your phone's memory. If you only see numbers from messengers or social media, the export procedure may not be available or correct.

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Before mass transfer, be sure to back up the entire phone book to.vcf via your contacts settings. This will take a couple of seconds, but save you from losing data in the event of a crash.

It is also worth checking the state of the SIM-If it's old or has damaged contacts, the recording process can be interrupted, it's recommended to remove and re-insert the tray, making sure the chip fits tightly, in some cases, it helps to clean the SIM contacts from old records, if they are in the limit.

• 📱 Make sure that SIM-The card is active and determined by the system.
• ☁️ Check if contacts are hidden by filters in the Contacts app».
• 💾 Free up space on the SIM card by removing unnecessary old entries.
• 🔋 Charge your smartphone before 30-40%, So he doesn't turn off in the process.

Standard way of export through the Contacts app

The primary and most secure number transfer method is built directly into Xiaomi’s regular app, which works on most current versions of MIUI and HyperOS, providing basic functionality without the need to install third-party software.

To start, open the Contacts app. In the upper right corner or in the bottom menu (depending on the shell version), find a three-dot icon or gear that indicates settings. In the menu that opens, select Import/Export contacts. This is where the key portability function lies.

⚠️ Note: When choosing a source for importing SIM-The system may warn you that some fields (e.g. email or address) will be deleted because the format is not clear. SIM-The cards don't support them.

After selecting a source (usually a “Device Memory” or a “Google Account”), the system will prompt you to select a destination. SIM-And then you'll see a list of all the numbers available, and you can select individual contacts, or you can press the highlight button all of the items at once, and then you start copying, which takes from a few seconds to a couple of minutes depending on the number of records.

It is important to note that in some versions of the firmware, direct export may be hidden. SIM-try to export contacts to internal memory in.vcf format and then select import from the same menu SIM-maps (paradoxically, but sometimes this activates the desired mode) or use third-party utilities, which will be discussed below.

Use of third-party applications for migration

Xiaomi’s regular tools don’t always work properly, especially if the phone book has thousands of entries or specific characters, and in such cases, specialized apps from the Google Play store come to the rescue, which have more flexible coding and formatting settings.

One of the most popular solutions is Copy My Contacts, or similar high-rated utilities, which allow you not only to copy a number, but also pre-filter duplicates, clear names of unnecessary characters that may not display correctly on old phones, and install such applications requires permissions to access contacts and the phone book.

Once you run the program, you will be asked to choose a copy direction. Select Copy from Phone to SIM. The algorithms of these applications are often more transparent than those of the system, and they give a more detailed error report if a contact is not recorded.

Using third-party software is especially important when you need to recode names into GSM 7-bit format to read them on push-button phones. Standard Android exports often use UTF-8, which leads to the appearance of “crackers” instead of letters on simple devices.

Format limitations SIM-maps and data loss

When transferring contacts to SIM-It's important to be aware of the technology limitations of this medium, because the standard for storing data on a SIM was developed decades ago, and it doesn't require storing large amounts of information, and it leads to the inevitable loss of a piece of data that users often forget about.

The table below shows a comparison of storage capabilities in the memory of the smartphone and on the SIM-A map so you know what you are missing:

The most critical point is the trimming of names. If the contact is saved as "Ivanov Ivanovich", on the SIM card it can turn into "Ivanov Ivan I." Therefore, before exporting, it is strongly recommended to check what the names will look like after truncation, so that important contacts do not become unreadable.

It is also worth considering that if the contact has several numbers (mobile, home, work), SIM-The card will likely only be written to the first of the list, or the system will create multiple separate records with the same name, creating confusion when used on another device.

Problem Solving: Contacts are not copied or duplicated

The migration process is not always smooth. Xiaomi and Redmi users may find themselves in a situation where the copy button is inactive, the process hangs in the middle or after the number is completed, often due to the peculiarities of the MIUI shell with access rights.

If you see an error message or the process stops, try the following algorithm. First, check if the memory is full. SIM-The limit is usually 250 to 500 records, and if the limit is reached, new contacts will not be able to make any more.

⚠️ Note: If you have a copying error, do not immediately try to repeat the process repeatedly.This can damage the SIM card file system. SIM-Reload the card, then restart the smartphone.

The problem of duplicates is solved through the merge function. Once the numbers are copied, go to the contact settings and select Contact Organization -> Combine duplicates. The system will analyze the database and suggest combining the records with the same phone numbers into one card.

In rare cases, cleaning the cache of the Contacts and Contacts app helps. SIM-For this, go to the Settings -> Annexes -> All applications, find the appropriate services and click Clear cache. Don't confuse it with Clear data, otherwise you can delete your call history.

Alternative Synchronization Methods and Cloud Solutions

In the digital age, physical copying SIM-The map is a thing of the past, giving way to more robust cloud-based methods.For owners of the Xiaomi and Google ecosystem, there are more efficient ways to save numbers that do not require manual intervention when changing phones.

Sync with your Google account automatically, make sure your account settings are ticked against the Contacts box, and when you install a SIM card on your new smartphone and enter your Google login, the entire phone book will recover in a few minutes, with photos and full names.

The alternative is to use Mi Cloud. In Xiaomi smartphones, this is a native feature that allows you to backup locally or in the Mi cloud. SD-map, which is a more reliable way of archiving than recording on a sim.

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Cloud sync (Google or Mi Cloud) is the only way to save contacts along with photos, email addresses and additional numbers, which is impossible when writing on a computer. SIM-map.

If your goal is simply to protect your data from loss, it’s best to export your contacts to a.vcf file and send it to your own email or save it to cloud storage. This file can be opened on any device, including a computer, and re-establish contacts at any time, regardless of the type of file. SIM-map.

Frequently Asked Questions (FAQ)