Modern smartphones Xiaomi and Redmi have a huge internal memory, which makes storage of numbers on the phone. SIM-It's almost meaningless, and many users don't even think about it until they have a problem: when you change the SIM to a new device or when you reset the settings, you find that some of the numbers are missing or duplicated. This is because the phone’s address book and SIM card memory are two different storages that don’t always sync correctly without user intervention.
The need to clear contacts from a SIM often arises when you change carriers, buy a new phone, or just want to put things in order in the digital chaos. Standard MIUI or HyperOS menus sometimes hide this feature, making the process unobvious to the beginner. In this article, we will discuss how to safely and completely delete records, while storing important data in the cloud or device memory to avoid accidental loss.
There are several proven ways to do this: through the built-in Contacts app, through third-party software, or by physically copying files. The method depends on your ultimate goal: whether you just need to vacate space on the chip or migrate the database to your Google account entirely. Let's look at each option in detail so you can choose the one that is most suitable for your situation.
Why it’s important to transfer contacts to your phone or cloud
Storage of numbers SIM-The memory limit on older chips often limits the length of the number and number of characters in a name, leading to cropped company names or names. In addition, if you damage or lose your SIM card, you risk losing your entire address book instantly, as backup on the carrier chip is usually not available to the user.
Using cloud services like Google Contacts or Xiaomi Cloud gives you real-time sync. If you lose your phone, just log in to your account from any device and all the numbers are in place. Unlike SIM, the cloud allows you to store photos, additional email addresses, physical addresses, and even notes tied to a particular person.
Another important aspect is speed. Xiaomi smartphones read information from internal memory or the cloud much faster than from an external medium. This speeds up the search by database and the dialing process. Removing contacts from the SIM card and transferring them to the cloud is the first step to optimize the performance of your smartphone.
Preparing for deletion: backup of data
Before you start drastic measures and delete any data, you need to make sure you have an up-to-date copy of all the numbers. Even if you plan to just clear the SIM, accidentally deleting the right contact due to a synchronization error is a real risk. The most reliable way is to use the built-in import/export function in the Contacts app.
To create a backup, open the app and go to settings. Here you need to find the Import/Export contact. Select the option "Export to.vcf" or "Copy to Google account (SIM-map and destination (phone or cloud memory) Make sure all required records are selected.
☑️ Pre-deletion check
Once the export process is complete, it is strongly recommended to check the result. Go to the Google Contacts app via your browser on your computer or in your phone settings, turning off the SIM card display. If all numbers are in place and correctly displayed, you can safely proceed to clean the physical media.
Method 1: Delete via the standard Contacts application
The simplest and most secure method requires no additional software installation and is available on all Redmi and Poco models. The interface may vary slightly depending on the version of MIUI, but the logic of actions remains the same.
In the window that opens, click the three dots in the upper right corner or the "More" button to call the menu. Select Settings or "Import/Export Contacts." Here you will see a list of available actions. You will need to find the "Delete Contacts" or "Contact Management" option.
- 📱 Click on “Delete Contacts” in the control menu.
- 📄 In the list of sources that appears, select «SIM-map” (may be indicated as SIM 1 SIM 2).
- ✅ Click “Select All” or manually mark the numbers to be erased.
- 🗑️ Confirm the action with the “Delete” button and enter the screen unlock password if required.
It's important to understand the difference between "hiding" and "deleting." In the contact display settings, you can simply tick the item «SIM-map" and they will stop corning the eyes, but will physically remain on the chip.
What to do if the removal button is inactive?
Method 2: Use of the application SIM-manager
In some versions of Xiaomi firmware, the SIM card management features are put into a separate system application or hidden in deep settings. This method is especially useful if the standard Contacts app is buggy or does not see the contents of the chip correctly.
Find it in the app menu «SIM-Maps and mobile networks or simply «SIM-Go to the "Contact" section. SIM-So here, the interface is as austere as possible, because it's limited by the chip itself, and you'll see a list of names and numbers without any extra details.
To delete, select the contact you want or use the mass selection function. In the action menu (usually called by a long tap or through the menu button), select "Delete", the system will warn you that the action is irreversible, and once confirmed, the recordings will disappear from the media instantly.
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Expert advice: Before removing the entire database, take a screenshot of the contact list SIM-In case of an error, this will help you manually restore lost numbers by checking the image.
The advantage of this method is that it works even if the phone is not connected to the Internet and Google sync is disabled. You work directly with hardware. However, be careful: there is no undo function in this mode, and the recovery of deleted will only be possible through previously created backups.
Method 3: Mass removal through Google Contacts
If your SIM contacts are already synced to your Google account, you can manage them remotely and massively, ideal for those who are used to working with a PC or want to do a deep database cleanup. Google Contacts’ web interface has powerful filtering tools.
Go to contacts.google.com from your computer or through your browser on your phone. On the left side of the screen, find the "More" section and select "On the left side of the screen." SIM-map" (if synchronization is successful, contacts will be marked with an appropriate icon or be in a separate group.
| Action. | The result | Where to find out. |
|---|---|---|
| Singling out all | Selects the entire visible group | Checkboxes from top of the list |
| Removal | Moves it to the basket | The trash can icon |
| Recovery | Returns from the basket (30 days) | The "Basket" section on the menu |
| Merger | Combines duplicates | Section "Combine and Correct" |
After all the contacts from the SIM card have been highlighted, press the delete button (basket icon).The changes will take effect immediately after syncing the phone with the server.Make sure your Xiaomi is connected to Wi-Fi so that the changes apply instantly.
And the good thing about this is that you have a shopping cart, where remote contacts are stored for 30 days, and if you accidentally delete the wrong thing, you can easily roll back the changes, and that's a level of security that's not available when you delete them directly through your phone's menu.
Problem Solving: Duplicates and Synchronization Errors
Often, when you try to delete your contacts, you find that they reappear, and this is a classic symptom of a synchronization conflict, and the phone sees that there's a record in the cloud, but there's no record on the SIM card (or in the local cache), and it tries to "fix" this by bringing the contact back, and to break this circle, you have to act in sequence.
First, turn off contact sync. Go to Settings → Accounts and Sync → Google and uncheck Contacts. Now that the phone won’t try to update the database from the Internet, you can safely delete SIM card entries by any of the methods described above.
⚠️ Note: If contacts return after deleting, check if synchronization with Mi Cloud or another service (e.g. Yandex or Outlook) is enabled. Conflict between multiple synchronization sources is the most common cause of immortal contacts.
To combat duplicates (where the same number is recorded on both SIM and phone under different names), use the built-in cleanup function. In the Contacts app, find the Tools or Cleanup section. The system will suggest combining repetitive records, which will help to remove visual noise after removing unnecessary copies from the SIM card.
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The main rule of cleaning: First, turn off sync, then delete the data from the SIM, and only then turn on sync back, selecting a priority source for a Google account.