The problem of duplicate contacts in the phone book is familiar to many owners of smartphones Xiaomi, Redmi and Poco. After switching from one device to another, synchronization with the phone is not a problem. SIM-If you take a map or restore it from a backup of the cloud, the call list can turn into chaos. Instead of one name, Ivan Petrov, you see three or four identical records, which is not only annoying visually, but also makes it difficult to find the right subscriber.
On Android, and in particular on the MIUI and HyperOS shells, this problem is solved in several ways, each of which has its own characteristics. Built-in algorithms often offer automatic merging, but they do not always cope with the task perfectly, especially if the numbers are written in different formats (for example, +7 and 8).
It's important to understand that removing duplicates isn't just about bringing beauty to you, it's about security and convenience, because when you call a duplicate number, you may not see your history of emails or missed calls if they're from another record in the database. Here are some proven ways to help you get your contacts in order.
Use of built-in cleaning function in MIUI and HyperOS
The quickest way to get things in order is to use a standard tool that's already preinstalled on the system. MIUI and HyperOS shells have a built-in contact management module that can scan the database and find matches. To start the process, you need to open the standard Contacts app and go to the settings menu or the Management section.
The interface may vary depending on the firmware version, but the logic remains the same. The system will offer you a list of pairs or groups of duplicates. You can choose to automatically merge all the records you find or manually monitor the process so that you don't accidentally merge different people with the same names. Automated merge saves time, but requires verification.
☑️ Pre-merger check
It's worth noting that Xiaomi's algorithm often pays attention not only to the phone number, but also to the name. If you have two contacts with the name "Mom" but different numbers, the system may suggest combining them, which would be a mistake.
⚠️ Warning: Before a mass merger, make sure you have an up-to-date contact backup.While the process is usually safe, a human factor or software failure can cause you to lose important data.
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If the automatic cleaning does not find duplicates, try changing the format of the number in the contact settings to international (+7), this will help the system see matches.
Merge contacts through Google Contacts account
The most reliable and versatile method is to work through Google services. Since most Android users sync their records with a Gmail account, that’s where the “master copy” of your phone book is stored. Google has powerful algorithms that often work better than standard phone tools.
To get started, go to contacts.google.com from your computer or through your smartphone browser. In the left menu bar, find Merge & fix. The system will automatically analyze the list and suggest combining duplicates. You will see a preview of what the final entry will look like after the merger.
The advantage of this method is that changes will instantly affect all devices associated with your account, and after you clear the list in the web interface, just press the sync button on the Xiaomi phone, and the duplicates will disappear from the device’s memory.
- 🔄 Automation: Google finds and offers to combine similar records.
- 💾 Security: All activities are saved in the cloud, history can be rolled back.
- 📱 Cross-platform: Changes seen on tablet, phone and PC.
Sometimes the sync process can take a few minutes. If after cleaning the site contacts on the phone are not updated, try to clear the cache of the Contacts app in the system settings.
What if Google doesn’t see duplicates?
Work with SIM-map: import and export
Often the source of the problem are old records stored directly on the SIM-When changing phones, users copy contacts from SIMs without deleting old ones, which leads to copies. In modern Xiaomi smartphones, storing on SIM cards is considered an outdated method, since it has a limit of characters and does not support complex fields.
To solve the problem, you first need to import all the data from the SIM-card memory in your phone or Google account, and then it is recommended to completely clear the SIM card memory through the contact settings, this will prevent the reappearance of records at the next sync.
| Action. | Where it's done | The result |
|---|---|---|
| Import with SIM | Contact settings | Phone memory copies |
| Removal with SIM | SIM management | Cleaning the carrier |
| Merger | Google/Telephone | Single database |
After cleaning the SIM card, be sure to check where the new numbers are stored by default. In the Contacts app settings, select your Google account as your primary storage, which will prevent garbage from accumulating in the future.
Use of third-party clearing-house applications
If Google’s built-in tools and services fail, specialized apps from the Google Play store come to the rescue. There are many utilities, such as Contacts Optimizer or Duplicate Contacts, that are sharpened specifically for finding complex duplicates.
These programs can find contacts that differ by one digit, or records with the same names but different numbers, offering the user flexible rules for merging, but be careful: giving a third-party application access to your contacts, you potentially risk data privacy.
It is recommended to use only proven applications with high ratings and a large number of reviews. Before starting the scan, be sure to export contacts to the.vcf file so that you can manually restore the list in case of an algorithm error.
⚠️ Warning: Avoid apps that require strange permissions that are not related to contacts (such as microphone or geolocation access) and this could be a sign of malware.
Manual editing and duplicate prevention
No automation can guarantee 100% results, so periodic manual checks won’t hurt, especially for contacts recorded at different times and from different devices. The Contacts app on Xiaomi is convenient to use a name or number search to identify residual duplicates.
To prevent future problems, follow a simple rule: always keep new numbers in a single account. Avoid mixing sources. If you use instant messengers, they can also create their own entries in the phone book, which sometimes leads to conflicts.
- 📝 Standard: Record numbers in an international format.
- 🗑️ Regular cleaning: Check your contact list every six months.
- 🚫 No. SIM: Do not keep contacts on the SIM card.
It’s also helpful to disable contact sync for applications that don’t need it (like some games or utilities) so they don’t create their own copies of records.
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The key to keeping contacts clean is to always save them to a cloud account (Google), not to your phone’s local memory or to your phone. SIM-map.
Restore Contacts After Mistakes
When you delete duplicates, there is always the risk of erasing or merging incorrect data. Fortunately, Google's ecosystem includes a feature called Undo Changes, which allows you to roll back the state of the phone book in time — 10 minutes, an hour, a week or even a month.
To do this, go back to the web version of Google Contacts, click on the settings gear and select “Cancel Changes.” Select the desired time interval. This action will return all deleted or changed contacts to the state they were in before the specified date.
Xiaomi devices can also run local recovery via the Mi Cloud if you’ve used it for redundancy, but Google Contacts remains a more reliable tool for dealing with change history.