Transfer contacts to SIM card in Xiaomi Redmi 7A: the complete guide

Switching to a new smartphone or simply wanting to back up important numbers often challenges users to move data. Owners of low-end but robust Redmi devices such as the Redmi 7A may face the need to transfer records from the phone’s internal memory directly to the carrier’s chip, a move that is especially relevant when switching gadgets to a different brand model where cloud services may differ.

The modern Android operating system, which is wrapped in the MIUI interface, provides built-in tools for managing the phone book, but their location is not always obvious. The copying process does not require installing third-party software and takes only a few minutes if you know the correct algorithm of actions in the settings menu.

In this guide, we will take a detailed look at each step of the procedure, paying attention to the nuances of working with the contact group and the possible limitations of the format of data storage, you will learn how to avoid loss of information during transfer and what to do if standard methods do not work.

Preparation of the device and verification of the initial data

Before you start moving records, make sure the source material is available and displayed correctly on the system. Open the standard Contacts app on your Xiaomi 7A and scroll through the list. Make sure the numbers you plan to copy are actually stored in your phone's memory or Google account, rather than already on your SIM card.

Note the status of your Internet connection. While the process of copying to a map does not require a network, pre-sync with the Google or Mi Cloud cloud can be a useful insurance. If you haven't updated the list in a long time, it makes sense to go to Settings → Accounts and sync and force you to update the data.

It's also worth checking if the SIM card is installed correctly.The Redmi 7A model uses a hybrid slot or a separate tray, so make sure the chip is recognized by the system.The network status should be displayed in the top notification bar. If the SIM card is not defined, the phone will not be able to write any information to it, and the import menu will be unavailable.

⚠️ Warning: Before starting a mass transfer, make sure there is free space on the SIM card.Old chips may have a limit of 250 entries and new numbers may simply not save or overwrite old ones without warning.

Import contacts from the phone memory to the SIM card

The main method of data transfer is implemented through the built-in contact management menu, which is the most reliable and does not require a connection to a computer. First, open the Contacts app and find the menu button, which is usually represented by three dots or horizontal bars in the upper right or lower corner of the screen.

In the list that opens, select Import/Export contacts. The system will offer several options. SIM-card (or "copy from phone to phone") SIM"). The name may vary slightly depending on the firmware version. MIUI, But the point is the same.

Once you select the action, the system will ask you to mark the contacts to be moved, you can select individual numbers manually or click the select all button at the top of the screen. After confirming the choice, click Export or Copy.

The copying process will take anywhere from a few seconds to a minute, depending on the number of records, at which time it is not recommended to switch between applications or lock the screen so as not to interrupt the operation of writing data to the chip.

Display setting and recording filtering

Once the copying procedure is completed, users often find that new entries are not visible in the general list, due to the display filtering settings, and by default, the phone can only show contacts stored in the device memory or account, ignoring the data on the SIM card.

To fix this, log into the Contacts app settings menu. Find Contacts Display or Contact Filter. You need to activate a tick against your SIM card. This action will combine lists from different sources into a single feed.

It is important to understand the difference between storage sources: SIM card entries are limited in format and usually do not support saving additional fields, such as email addresses, subscriber photos or a second phone number. When exported from Xiaomi 7A, this information may be lost.

You can use sorting to make navigation easier. In the display settings, select sorting by surname or name to find numbers you just moved, which is especially useful if you're copying a large phone book and want to make sure all the records fall into place.

Table of comparison of sources of storage of contacts

Understanding the differences between storage locations will help you choose the best option for backups. Below is a comparison of the characteristics of storing contacts in different environments.

As you can see from the table, the SIM card is the least functional storage in today's environment, and it's suitable for basic number transfer between phones of different brands, but not for a full-fledged backup.

Using Google Contacts is preferable, as it allows you to recover all information, including avatars and correspondence history, if you lose or break the Xiaomi 7A. However, if your goal is compatibility with a button phone or an old device, the SIM card remains the only universal carrier.

Possible problems and ways to solve them

The copying process can be technically complicated, and one of the common problems is that you get an error message that says "failed to copy" or you get a process that freezes, often due to damage to the contact file system or incorrect characters in the names.

If you encounter an error, try clearing the Contacts app cache. Go to Settings → Apps → All Apps → Contacts → Memory → Clear. Don’t worry, your numbers won’t be deleted as they’re stored in the database, not in the cache. After cleaning, repeat the export procedure.

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If you stop copying on a particular number, try copying contacts in small groups of 50 to help identify the particular entry with an error in the name or number format that is causing the failure.

Another reason may be a crowded SIM card memory, in which case the system will suggest replacing existing records or refuse operations, manually delete unnecessary old numbers from the SIM card through the contact management menu, selecting the SIM filter only.

⚠️ Warning: Never remove a SIM card during the data writing process, which can damage the chip and completely lose the entire phone book, which will be almost impossible to restore.

Use of alternative synchronization methods

Beyond manual copying, there is a more modern way to transfer data through a Google account, which does not require physical interaction with the SIM card and allows you to maintain the full contact structure. On Xiaomi 7A, this is done through the Settings menu → Accounts and Sync → Google.

Make sure the Contacts switch is activated, and when you sync, all your numbers will automatically upload to the cloud, and on the new device, just log in to the same account, and the phone book will fill in automatically.

For users switching from other Android smartphones, it is convenient to use the Mi Mover app, which allows you to transfer contacts, messages and applications over Wi-Fi directly. However, if the target device does not support MIUI, the method with a SIM card or Google account remains the most versatile.

The choice of method depends on your goals. A SIM card will do the job quickly, a full-fledged backup will do the cloud, and in any case, Redmi 7A provides all the necessary tools to safely manage your phone book.

Frequently Asked Questions (FAQ)