Modern smartphones offer many ways to store information, but the classic method of recording numbers directly on SIM card remains in demand. Owners of a popular model Xiaomi Mi 9 often face the need to transfer the contact database to the chip when changing devices or for offline backup. This procedure ensures that your data will not be lost, even if the phone is lost or completely reset to factory settings.
The interface of the shell MIUIinstalled on Xiaomi Mi 9has its own navigation features that can confuse a user who is accustomed to "pure" Android. The saving process does not look obvious, since the system by default tends to synchronize all data with the Mi Cloud or Google account. However, physical saving on the chip is possible and is performed through the standard Contacts application without installing third-party software.
In this article we will analyze in detail the algorithm of actions that will allow you to safely move records. We will look at the nuances of working with SIM card memory, restrictions on the number of characters and ways to solve common errors that occur when importing data on series devices Mi 9.
Preparing the phone book for transfer
Before proceeding with direct export, it is necessary to audit the current database. Users often don’t notice that their contacts are scattered across different storages: some are in the phone’s memory, some are in their Google account, and some duplicates may be hanging around like dead weight. For the export function to work correctly, it is important to first combine these records. SIM It is important to merge these records first.
Go to the application Contact and select Managing contacts. Here the system will offer to find and merge duplicates. This operation is critically important, since the memory limit on the SIM card is limited, and filling it with duplicates will lead to the fact that important numbers simply will not fit. After cleaning, make sure that all the necessary numbers are displayed in the general list.
It is worth considering that old SIM card standards have strict restrictions on the length of the contact name. If you saved numbers with long names containing special characters or emoticons, this information may be truncated or distorted when transferred to the chip. It is recommended to check critical entries in advance and, if necessary, shorten names to a concise format.
⚠️ Attention: Before mass transfer, make sure that your SIM card is not locked with a PIN that you have forgotten. Three incorrect entries will lead to blocking of the chip and the need to enter a PUK code.
Take a screenshot of the current list of contacts before starting manipulations. This will serve as a visual insurance if something goes wrong during the import process.
Step-by-step guide for exporting contacts
The main process of transferring data in the shell MIUI 12 or newer, which is relevant for Xiaomi Mi 9, is performed through the built-in management tools. Open the application Contact and go to the settings menu, which is usually hidden under the icon with three dots or a gear in the upper corner of the screen.
In the menu that opens, find the section Import and export contacts. Here the system will offer several options for action. You need to select an option Export to SIM card. If you have two SIM cards installed in your phone, the system will ask you to select a specific slot for recording data. Select the chip that you will use in a new device or store as a reserve.
After selecting a slot, a list of all contacts available for transfer will appear. You can mark all entries at once or select only specific numbers by holding your finger on the contact name. Confirm the action with the Exportbutton. The process will take a few seconds, during which a progress bar will be displayed on the screen.
- 📱 Open the Contacts application on the main screen.
- ⚙️ Tap on the settings menu and select "Import/export".
- 💾 Select item “Export to SIM card” and confirm the action.
- ✅ Wait for the process to complete and check the availability of numbers through the SIM viewing menu.
☑️ Export control
Memory limitations and data format
Users Xiaomi Mi 9, accustomed to the huge internal memory of a smartphone, often forget about the modest capabilities of traditional SIM cards. The standard chip capacity varies from 250 to 500 entries depending on the operator and card type. If your phone book exceeds this limit, the system will generate an error or simply stop recording after filling the available cells.
Another important technical nuance is the format for storing numbers. The SIM card does not support storing additional fields such as email address, home address, contact photo, or notes. When exporting from phone to the chip, all this additional information will be permanently deleted, leaving only the name and main phone number.
There is also a limitation on character encoding. Cyrillic names may not display correctly on some older phone models or may be cut off if the name is too long. The Latin alphabet is more reliable in this regard, but for the Russian segment this creates certain inconveniences when reading names on third-party devices.
| Parameter | Phone memory/Cloud | SIM card |
|---|---|---|
| Maximum contacts | Unlimited | 250-500 pcs. |
| Name length | Up to 100+ characters | Up to 14-20 characters |
| Photo contact | Supported | Not supported |
| Additional. fields (Email, Address) | Supported | Not supported |
What to do if there are more than 500 contacts?
If your database exceeds the capacity of one SIM card, you will have to split the export into several stages or use a second SIM card as additional storage. An alternative is to upload part of the contacts to a .vcf file.
Working with dual-SIM devices
The model Xiaomi Mi 9 supports the operation of two SIM cards simultaneously, which adds another layer of complexity to the contact management procedure. When trying to export, the system will always ask for clarification: which slot the data needs to be written to. A mistake in choosing a slot can lead to contacts ending up on the card that you planned to remove or replace.
It is important to understand the difference between displaying contacts in the general list and their physical location. In the display settings, you can enable the checkbox Show contacts from SIM cardto see which records are already on the chip. This is useful for checking the success of the export operation without having to move the card to another phone.
If you plan to transfer contacts from only one of the two cards, be extremely careful when selecting the source and destination of the data in the import/export menu. The interface MIUI sometimes uses the designations "SIM 1" and "SIM 2", which may not coincide with your idea of which card is installed where, if you have not checked this in the network settings.
⚠️ Attention: Firmware interfaces may be updated. If you do not find the “Export to SIM” item, check for system updates or look for the function in the “Contact Management” section, as the menu location may change in new versions of MIUI.
Alternative backup methods
Although the question of how to save numbers to a SIM card on Android xiaomi 9is a popular one, experts recommend considering this method as outdated for basic backups. The modern Android ecosystem offers more reliable and functional ways to save data that are free of restrictions on the size and format of characters.
The most effective method is synchronization with an account Google. To do this, just go to the phone settings, select the section Accounts and synchronization and make sure that the switch opposite the item Contact is active. In this case, your entire phone book is automatically saved in the cloud and linked to your email address.
Another reliable option is to create a local backup file in the format .vcf. This file can be saved to internal memory Xiaomi Mi 9, to a memory card, or sent to yourself by email. The advantage of this method is that the file contains all the information: photos, addresses and additional numbers that do not fit on the SIM.
- ☁️ Synchronization with Google account ensures instant recovery on any device.
- 📂 Export to a .vcf file saves the full structure of the contact, including photos and notes.
- 🔄 Using the Mi Mover application allows you to quickly transfer data to a new Xiaomi.
Synchronizing with Google or exporting to a VCF file are more reliable ways to save data than recording to a SIM card, due to the absence of restrictions on the volume and quality of information.
Eliminating common errors when importing
Sometimes users are faced with a situation where the export button is inactive or the process ends with an error message. The most common reason is that the Contacts app doesn't have permissions. Go to Settings → Applications → Contacts → Permissions and make sure that access to the phone and storage is allowed.
Another common problem is related to damage to the file system of the SIM card itself. If the chip is old or has physical contact damage, the phone can see the network but will not be able to write data to its memory. In this case, try clearing the contacts from the SIM card through the control menu, and then try recording again.
If none of the methods helps, the problem may lie in a shell software failure MIUI. Try clearing the Contacts app cache and Contacts storage through the app settings menu. This will not delete your numbers, but it will clear temporary files that may prevent the export function from working correctly.
Why are some contacts not transferred to SIM?
Contacts may not be transferred if they contain characters not supported by the SIM card standard, or if the contact name exceeds the allowed length. The system can also ignore contacts that do not have a phone number specified (for example, only email).
Is it possible to restore contacts from a SIM back to the phone?
Yes, this is possible. In the same “Import and export contacts” menu, select “Import from SIM card”. The system will offer to save them to the phone memory or Google account.
Will contacts from the SIM be erased when the phone is formatted?
No, contacts written directly to the SIM card chip do not depend on the phone's memory. Resetting the Xiaomi Mi 9 will only affect the internal memory of the device and accounts, but will not affect the data on the physical card.
How to check how much space is left on the SIM card?
Go to the Contacts application, open the settings and select “Contacts on SIM card”. At the top of the screen, information about memory usage is usually displayed, for example, “15 out of 250 used.”
What if contact names are displayed in hieroglyphs?
This is an encoding problem. Try renaming your contacts using only Latin letters before exporting. Unfortunately, the SIM card standard has limited support for the Cyrillic alphabet in some regions and on older chips.