Storing phone numbers directly on SIM card is an outdated method that often creates problems when switching to a new smartphone or changing operator. Device owners Xiaomi, Redmi and POCO often face a situation where the SIM card memory is full, which does not allow saving new important numbers, or there is a need to transfer records to the cloud for synchronization. Modern shells MIUI and HyperOS provide powerful tools for managing the phone book, but the logic of their operation differs from a clean Android.
The cleaning procedure requires care, since accidental deletion can lead to data loss if it has not been previously copied. Deleting contacts from physical media, such as an operator card, is only possible through the standard Contacts application or through the SIM management menu. It is important to understand that after cleaning, the data will disappear from the chip, but will remain in the device’s memory if you previously imported it. Below we will analyze in detail all the stages of this process, provide for possible nuances of the interface and ensure the safety of your database.
Before taking radical measures, it is necessary to determine the current state of the storage. Users often confuse contacts saved in their account Google, with entries on SIM. Checking the save source is the first step to properly organizing your phone book. We will look at how to visually distinguish these types of records and why storing on a SIM card is considered unsafe and inconvenient today.
Data preparation and backup
Any manipulations with the contact database should begin with creating a backup copy. This is the golden rule of mobile device administration. Even if you are confident in your actions, a software glitch or accidental click can lead to irreversible loss of information. On devices Xiaomi there are several reliable ways to save numbers before wiping the media.
The easiest method is to use the built-in export to file function VCF. This format is universal and can be opened on any device, including computers and smartphones of other brands. The file can be saved to the internal memory of the phone or sent to yourself by email. An alternative option is synchronization with your account Google, which occurs automatically if there is an Internet connection and the option is enabled in the system settings.
⚠️ Attention: Make sure that the contacts are actually copied to the phone memory or the cloud before clicking the “Delete” button. If the entry is stored only on SIM, deleting it without first importing it will destroy it permanently.
To create a local copy, go to the “Contacts” application, click on the menu (usually three dots or the profile icon) and select “Settings”. In this section you will find the “Import/Export contacts” option. Select the Export to storage device action. The system will prompt you to select the path to save the file .vcf. After the process is completed, you will have a reliable backup.
Before deleting, send the contact export file to yourself in Telegram or email - this will create an additional copy in the messenger cloud, available even if the phone is completely broken.
If you prefer cloud technologies, check the synchronization status. Log in Settings → Accounts and synchronization → Google. Make sure the switch next to Contacts is active. Tap the three dots in the corner of the screen and select Sync. This ensures that all numbers from the SIM card that have already been imported into the phone will end up in your Google account.
Step-by-step guide for deleting via the Contacts application
The main tool for managing records in the shell MIUI is the standard “Contacts” application. The interface may differ slightly depending on the firmware version (Chinese or global), but the logic of actions remains the same. The deletion process can be performed both for individual records and in bulk, which significantly saves time.
To begin, open the application and go to the “Contacts” tab. At the top of the screen or in the settings menu (three dots), find the “Display contacts” item. Here it is critical to select the “SIM Card” or “All Contacts” option to see the desired entries. If you choose to display only from your phone or Google account, you will not see the numbers stored on the operator chip.
Once the list of numbers from the SIM card is displayed, you can begin deleting. To work with one entry, simply tap on it to open the contact card. At the bottom of the screen or in the top menu (often hidden under the trash can or three dots icon), look for the "Delete" button. Confirm the action in the dialog box that appears.
☑️ Algorithm for deleting one contact
If your goal is a complete cleanup, use multiple selection mode. Press and hold your finger on any contact in the general list until the highlight checkmark appears. After this, the top toolbar is activated. Click on the “Select All” icon (usually a square with a checkmark or the corresponding inscription in the menu). When all entries are selected, click the trash can icon.
The system will ask you to confirm the mass deletion. This is a safety mechanism to prevent accidental clearing of the entire database. Click OK or Delete. The process will take a few seconds, depending on the number of entries. After completion, the list of contacts from the SIM card will become empty, and the freed memory will allow you to save new numbers directly to the chip, if such a need arises.
Mass deletion through the selection mode is the fastest way to clear the SIM card completely, but requires a backup copy.
Management through SIM card settings
In some versions firmware Xiaomi access to managing the contents of the SIM card is included in the general system settings. This method is useful if the Contacts app is not working correctly or if you want to see technical information about how full the chip's memory is. This path leads through the system menu of device parameters.
Open the main Settings smartphone. Scroll down the list to the “System applications” section or immediately look for the “SIM cards and mobile networks” item (the name may vary depending on the version Android). Select the SIM card slot you want to work with (SIM 1 or SIM 2) if the device has two modules.
In the SIM card management menu, find the item “Contacts on SIM card” or “Manage SIM contacts”. Clicking on this item will open a list of all records physically stored on the chip. The interface here is usually simplified: a list of numbers and a menu button for operations. The deletion principle is similar to that described above: selecting and deleting through the trash.
| Access method | Advantages | Disadvantages | Recommended scenario |
|---|---|---|---|
| Contacts application | User-friendly interface, quick access | Can confuse sources with incorrect filters | Daily use and quick cleaning |
| System settings | Direct access to chip data, independence from the application | Deeper menu nesting | Diagnostics and work in case of application failures |
| Third-party utilities | Extended functionality editing | Security risk, advertising | Complex field editing (not recommended) |
Using system settings also allows you to see technical information, such as how many numbers have already been recorded and what is the memory limit of your SIM card (usually from 250 to 500 entries depending on the operator and chip type). This information is useful for understanding why new numbers are not saved.
Why is the SIM contact limit so small?
The technology for storing data on SIM cards was developed decades ago, when the main purpose of the chip was to authorize the network, and not to store multimedia or large databases. Chip memory is limited to kilobytes, so modern smartphones tend to transfer this function to internal memory or to the cloud.
Transferring contacts from SIM to phone and to the cloud
Before deleting entries, it is most logical to transfer them to more reliable storage. In the ecosystem Xiaomi this process is automated and takes a matter of minutes. Moving contacts to your phone memory or account Google makes them available even if the physical SIM card is lost or damaged.
To start importing, go to the Contacts application and open the settings menu. Vyberite razdel «Import/Eksport kontaktov». Vam budet predlozheno vybrat istochnik dannykh. Ukazhite «Importirovat s SIM-karty». Dalee sistema sprosit, kuda imenno sokhranit dannye. Optimalnyy vybor — vash akkaunt Google (adres elektronnoy pochty). If you select "Phone", contacts will only be stored on this device.
After selecting the destination, the system will display a list of contacts to import. You can select everything at once or tick specific numbers. Click the Import or OK button. The copying process will go quickly. It is important to note that the original recordings are not deleted from the SIM card are only duplicated in a new location.
- 📲 Google account: The best choice for synchronization between devices and automatic backup.
- 📱 Phone memory: Suitable if you do not use the Internet or a Google account, but the data will be lost when you reset the settings.
- ☁️ Mi Cloud: Branded cloud Xiaomi, convenient for users of the brand ecosystem, but requiring separate authorization.
Only after you have made sure that all numbers have successfully appeared in the phone or cloud, you can return to the procedure for removing them from the SIM card, described in the previous sections. This approach guarantees zero risk of data loss.
Features of working in the HyperOS shell
With the release of the new operating system HyperOSthat replaced MIUI, the interface of some system applications has undergone changes. The visual style has become more minimalistic, and some menu items have been renamed or moved. However, the functional part of managing contacts remains the same, although finding the right buttons can be difficult for users accustomed to the old design.
The Contacts application is often combined with the Phone application into a single structure, or has an updated design with floating action buttons. The path to the import/export settings may look like HyperOS The Contacts app is often combined with the Phone app into a single layout, or has an updated design with floating action buttons. The path to the import/export settings may look like Profile → Settings → Import and export. The icons have become more contoured and lighter.
The key difference is improved integration with cloud services. The system may automatically offer to transfer contacts from the SIM upon first startup or when new entries are detected on the chip. If you see a notification about found contacts on your SIM, the system will prompt you to copy them immediately. This simplifies the data migration process.
⚠️ Attention: In new software versions, the interface may change with each security update. If you do not find the described items, use the search in the settings by entering the request “contacts” or “import”.
Despite the cosmetic changes, the deletion algorithm remains the same: find the entry, select, click trash. If the standard application in HyperOS causes difficulties, you can always use an alternative path through the system settings in the "SIM cards" section, which is less susceptible to redesign.
Use the search in settings (the magnifying glass at the top of the settings screen) to instantly find the "Manage SIM contacts" item if you get confused in the new HyperOS menus.
Solving common problems and errors
Sometimes users are faced with a situation where the delete button is inactive (gray) or the system gives an error when trying to clear the list. This may be due to access rights, features of a particular telecom operator, or software failures of the application.
One of the common reasons is blocking editing on the part of the operator. Some telecom operators record service numbers (for example, voicemail numbers, balance, service codes) in a secure area of the SIM card memory. Such contacts are marked with a special read-only flag and cannot be deleted by the user using standard means. This is normal behavior and there is no need to try to work around it.
Another problem is display desynchronization. It happens that you delete a contact, but it continues to appear in the list. In this case, clearing the application cache will help. Go to Settings → Applications → All applications → Contacts. Click Clear and select Clear Cache. Do not confuse with “Clear all data”, as this may reset the display settings of the application itself.
- 🔒 Protected contacts: Operator service numbers cannot be deleted, this is a chip level limitation.
- 🔄 List freezes: The phone needs to be rebooted or the Contacts application cache must be cleared.
- 📉 Insufficient memory: An error when saving a new contact means that the SIM limit has been reached, you need to delete the old ones.
If none of the methods helps, and the phone claims that there are contacts on the SIM card, but does not show them or does not allow you to delete them, try removing the SIM card and inserting it into another phone. If the problem persists there, the chip may be physically damaged or have a faulty memory controller. In this case, the only solution is to replace the SIM card with the operator with number porting.
If the contacts are not deleted and are not displayed correctly, the problem may be on the side of the physical SIM chip, and not in the phone software.
Frequently asked questions (FAQ)
Are contacts deleted from the phone? if I clear the SIM card?
No, they will not be deleted. These are different data stores. If you have previously imported (copied) contacts from the SIM into the phone memory or Google account, then after clearing the SIM card, the numbers will remain in the phone. Only those records that are physically located on the operator's chip are deleted.
Is it possible to restore contacts after deleting them from a SIM?
Restoring directly from a SIM card is almost impossible, since when deleted, the data is overwritten. The only chance is to have a backup copy (.vcf file) or synchronize with the cloud (Google/Mi Cloud) performed BEFORE deletion. Check the trash in Google contacts (contacts.google.com), where deleted entries are stored for up to 30 days.
Why are some SIM contacts not highlighted for deletion?
Most likely, these are service numbers of your telecom operator (answering machine, customer service). They are recorded in a protected sector of the SIM card memory and have a read-only status. You cannot delete them using standard phone means, and it is not necessary, since they are necessary for the operation of communication services.
How to learn how many more contacts will fit on the SIM card?
Go to the “Contacts” application, open the settings and select “Contacts on the SIM card”. Typically a counter will be displayed at the top or bottom of the list, for example: "150 out of 250 used." The limit depends on the type of SIM card you have (older models hold less, new USIMs hold more) and the operator.
Is it safe to store contacts only on the SIM card?
No, it is unsafe and inconvenient. If your SIM card is lost or damaged, you will lose all numbers. In addition, additional data cannot be stored on SIM: contact photo, second number, email, address. Modern smartphones are focused on storage in the cloud or device memory.