Changing a smartphone is always stressful, associated not only with getting used to the new interface, but also with the risk of losing important data. For many users, the SIM card remained the main storage of numbers for many years, but in the era of modern Samsung Galaxy this approach is considered outdated and unsafe. Owners of new devices often wonder how to quickly and losslessly transfer records from the old chip to internal memory or a cloud service.
The import process on devices running Android is maximally simplified by the developers, but has its own nuances, depending on the version of the operating system and the device model. Incorrect actions may result in numbers remaining invisible or duplicated. In this guide, we will look in detail at standard transfer methods, features of working with different slots and ways to solve common errors.
Before proceeding with technical manipulations, it is worth understanding the difference between storing data on a card and in the device’s memory. SIM entries are limited to a name length of 14-16 characters and do not support additional fields like email or address. Transferring them to your phone gives you access to the full functionality of contact management, including synchronization with a Google account.
Preparing the device and checking the slot
The first step before starting the procedure is to physically install the card into the device. In modern smartphones Samsung A combination tray is used, where you can insert either two SIM cards, or one card and a microSD memory card. Make sure that the chip is installed in the active slot and is recognized by the system.
You can check the visibility of the card by going to the menu Settings → Connections → SIM card manager. If the system does not display the operator or writes "No network", the problem may be dirty contacts or format incompatibility (for example, trying to use an old mini-SIM without trimming). In this case, import will not be possible until the hardware error is resolved.
It is also worth paying attention to the firmware version. In older versions of the shell One UI the path to the settings may differ slightly from current releases. If you are using a device purchased several years ago, the interface may look different, but the logic of the actions remains the same.
⚠️ Attention: If your SIM card is protected by a PIN code, the system will prompt you to enter it when you restart the phone or remove the tray. Make sure you remember the code, otherwise after three incorrect attempts the card will be blocked by the PUK code.
☑️ Ready for transfer
Import through the standard Contacts application
The most reliable and universal way to move data is to use the built-in application Contact. This method does not require the installation of third-party software and works reliably on all Galaxy models. The algorithm of actions is intuitive even for beginners.
Open the application and click on the menu icon, which is usually located on the right side of the screen (three horizontal stripes or dots). In the drop-down list, select Contact Management. Next, the system will offer several options for action, among which we are interested in the import function.
Click on the button Import contacts. A window for selecting a data source will appear in front of you. Here it is critically important to correctly indicate where exactly the information should be read from. If you have a dual-SIM device, the system will prompt you to select a specific slot: SIM 1 or SIM 2.
- 📱 Select the source: indicate the slot in which the card with numbers is installed.
- 💾 Select the destination: phone memory, Google or Samsung account Cloud.
- ✅ Confirm the action: check all entries or select specific ones.
- 🚀 Complete the process: click the "Finish" or "Import" button.
After confirmation, the copying process will begin. Its execution time depends on the number of records. Typically, transferring several hundred numbers takes no more than a minute. When the operation is complete, you will see a notification about the successful import.
When choosing a save location, it is recommended to specify a Google account, and not just the phone memory. This ensures that if the device is lost or broken, the numbers will not be lost, since they will be linked to your mail.
Working with two SIM cards and selecting a source
Owners of devices with Dual SIM support often face confusion when choosing an import source. If the phone has two cards, and both have records, the system will offer to import data one by one or allow you to select a specific slot in the settings.
It is important to understand that when importing from two cards simultaneously, duplicates may occur if the same numbers are recorded on both chips. Modern Android has a function for merging duplicates, but it is better to control this process manually, especially if there are many work contacts in the list.
If you plan to use only one main SIM card in the future, and leave the second one as a backup or for the Internet, it makes sense to first import data from the main one, and then, if necessary, check the second one. This will avoid chaos in the phone book.
Where is better to save: Memory, Google or Samsung
The choice of storage location is a strategic decision that affects the availability of data in the future. Storing contacts exclusively in the device's internal memory (Phone memory) is the least reliable option. If you reset the settings to factory settings or the motherboard breaks down, this data will be lost forever.
The most preferable option is synchronization with Google Contacts. This method provides automatic backup to the cloud. Even if you lose your phone, just enter your login and password on the new device, and your entire phone book will be restored instantly. In addition, this allows you to edit contacts from a computer through a browser.
An alternative is the ecosystem Samsung. If you actively use the brand's services, saving to a Samsung account also guarantees data security. However, for cross-platform (for example, if you switch to a different brand of phone in the future), Google Account is a more universal standard.
| Storage location | Reliability | Access from other devices | Risk of loss |
|---|---|---|---|
| Phone memory | Low | No | High (on reset) |
| SIM card | Medium | Only when installed in a phone | Medium (physical wear) |
| Google Account | High | Yes (web, any Android) | Minimum |
| Samsung Account | High | Yes (Samsung devices) | Minimum |
⚠️ Attention: The menu interface may change depending on One UI updates. If you do not find the "Manage contacts" item, try going to the settings of the application itself through the main menu of the smartphone.
Problem solving: contacts are not displayed or duplicated
Sometimes after importing, users find that the phone book is empty, although the procedure was completed successfully. Most often, the reason lies in the display settings. By default, the application may hide contacts saved on the SIM card, or show only entries from a specific account.
To fix this, go to the application settings Contact and find the section Contacts to display. Make sure that the "All contacts" checkbox is checked or the accounts into which you imported are selected. This is a common situation when it seems that data is lost, although it is simply hidden by a filter.
The problem of duplication is solved by the merge function. In the contact management menu, select Contact management → Merge duplicates. The system will automatically analyze the database, find records with the same names or numbers and offer to combine them into one card, saving all available information.
Why are contact names truncated?
If after the transfer you see that long names are truncated (for example, "Alexander" turned into "Alexan"), this is a limitation of the storage format on the SIM card itself. When importing to a phone, full names will not be automatically restored if they were not previously recorded there. You will have to edit them manually.
Export back to SIM and alternative methods
Although storing on a SIM card is not recommended, sometimes it becomes necessary to transfer contacts back, for example, to install them in a feature phone or transfer them to another person. The export procedure is mirrored to the import and is performed through the same menu Manage contacts.
Select an option Exporting contacts, indicate the source (phone memory or account) and destination - your SIM card. It is worth remembering that when exporting long names or contacts with additional fields (address, notes), this information will be lost due to technical limitations of the chip.
There are alternative transfer methods that do not require physical movement of data through the menu. Using the feature Smart Switch from Samsung allows you to transfer your entire phone book from your old device to your new Galaxy via cable or Wi-Fi as part of a complete data migration. This is convenient when setting up a new device for the first time.
Regular synchronization with a Google account eliminates the need to manually transfer contacts in the future and protects against their loss when changing devices.
Is it possible to transfer contacts if the phone does not turn on?
If the smartphone is completely inoperable, transfer contacts It is impossible using software methods. However, if the SIM card is working, you can remove it and insert it into any other phone to copy the numbers from there. If the contacts were saved only in the memory of a broken phone and were not synchronized with the cloud, it is extremely difficult to restore them without repairing the device.
How many contacts fit on one SIM card?
The capacity of a SIM card depends on its generation and operator, but usually ranges from 250 to 500 entries. Older cards may hold less. If you try to import more numbers, the system will give an error or stop after the limit is filled.
What to do if the "Insufficient space" error occurs during import?
This error most often refers to the SIM card memory during export, rather than during import. If an error occurs when importing into your phone's memory, check the available storage space on your device. Also try rebooting your smartphone and repeating the procedure.
Will contacts disappear from the SIM card after transferring to the phone?
No, the import operation creates a copy of the records in the device memory. The originals remain unchanged on the SIM card. If you want to free up space on the card, you will need to manually delete entries through the contact management menu, selecting the SIM card itself as the source.