The problem of repeated phone book entries is familiar to many owners of Xiaomi and Redmi smartphones. After migrating from another device or resetting settings, users often find that the same number is saved twice or even three times. It is not just visual noise, but a real inconvenience, preventing you from quickly finding the right subscriber.
Duplication arises from dissynchronization between the phone’s local storage, Google account, and SIM card. Android’s operating system sometimes mishandles data when it updates, creating copies instead of combining profiles, resulting in chaos that is difficult to navigate even with a small number of subscribers.
Fortunately, the built-in tools and third-party utilities allow you to quickly clean up your order. In this article, we will examine proven methods for cleaning the phone book from debris and adjusting settings that will prevent copies from appearing in the future.
Why are there duplicates on Xiaomi and Redmi?
The main reason for the duplication is because of the synchronization mechanism, so when you move data from an old smartphone or restore a backup, the system can perceive local records and data from the cloud as different entities, and instead of combining them, MIUI creates new memory cells for each source.
Another factor is the simultaneous storage of numbers on the SIM card and in the device memory, which many users do not notice that when a new number is called or saved, it automatically writes to two places, especially after flashing or changing the region.
It's also human, because accidentally resaving a number during a conversation or manually copying data without first checking leads to a cluttered list, and understanding the source of a problem is the first step to solving it.
- 🔄 Dissynchronization between Google account and local phone memory.
- 📱 Simultaneous use SIM-cards and internal memory for storing numbers.
- 📥 Improper import of data from.vcf files or other devices.
- 👤 Manual duplication when editing a contact card.
Use of the built-in association function
Modern versions of the MIUI and HyperOS have a standard feature to solve this problem, which allows you to automatically find matches and combine them into one record, and this is the most secure method, without requiring additional software.
To get started, you need to open the standard Contacts app, and in the upper right corner of the screen, there's a menu hidden behind three dots or a setting icon, and that's where the list management tool is.
Select Contacts Or Tools, and the system will tell you to find duplicates, and after scanning, you'll see a list of pairs that you can combine, and then click Merger or Unite All to complete the process.
☑️ The merger algorithm
Importantly, after the merger, the data is stored in the default format for the new contact, usually a Google account, which is the right choice for data security.
Setting up display and storage priorities
To avoid duplicate contacts on Xiaomi Android in the future, you need to set your priorities correctly. The system needs to clearly understand where to store new records. The default option is often the phone or SIM option, which leads to problems.
Go to your contacts settings and find the Default Accounts or Save Location section. Select your primary Google account, which ensures that all new numbers are immediately in the cloud and synced, avoiding local conflicts.
It's also helpful to set up display filters. Sometimes duplicates don't exist physically, but are just shown from different sources. In the display settings menu, leave a tick just opposite your Google account, hiding contacts from your Google account. SIM-map.
⚠️ Note: Before mass merge or delete records, we strongly advise you to make a backup. Export to the.vcf file will take a couple of seconds, but save you from losing important numbers in case of an error.
If you have multiple accounts (for example, personal and work), make sure that the sync settings do not have conflicting settings.
Cleaning through Google Contacts
The most reliable way to clean up the mess is to use Google Contacts’ web interface, which works regardless of the phone model, whether it’s a Redmi Note or a flagship Mi. The cloud service has powerful algorithms for search and merger.
Go to contacts.google.com from your computer or through your smartphone browser. On the left menu, find the "Combine and Fix" section. The system automatically prompts you to combine similar contacts.
And here, you can also use the Cancel Changes feature, which allows you to roll back the state of the phone book by 30 days, which is critical if the cleaning process failed and you deleted the excess.
How does Google's algorithm work?
After making changes to the web version, go back to your phone. Open your Google account settings and click Sync. All changes will be instantly applied to your Xiaomi device.
Removal of contacts with SIM-map
Storing numbers on a SIM card is a relic of the past, often causing duplication, and the limited character and lack of support for modern fields (photos, emails, multiple numbers) make this method inconvenient.
To start, export all data from the SIM card to your phone memory or Google account. In the Contacts app, find the import/export menu and select Import from SIM-map".
After successful transfer, delete the original entries from the SIM card. In the same menu, select "Delete from the SIM card". SIM-maps” or “Management SIM-This will break the link between the local base and the carrier of the operator.
| Parameter | Phone Memory/Google | SIM-map |
|---|---|---|
| Limit of symbols in a name | No restrictions. | ~14-20 characters |
| Number of rooms | A few per person | One number. |
| Photo of contact | Supported | Not supported |
| Risk of loss | Minimum (cloud) | High (if card is lost) |
💡
Complete refusal to store contacts on SIM-Map eliminates 90% of duplicate problems on Xiaomi devices.
Third-party cleaning applications
If the built-in tools fail, Google Play’s specialized utilities come to the rescue, which have more flexible filtering settings and can find hidden duplicates that the system skips.
A popular solution is Contacts Optimizer or Duplicate Contacts, which scans the contacts2.db database and offers different merger strategies by number, name or email.
When using third-party software, carefully monitor the permissions requested. Access to contacts should be the only permission required. Avoid applications with suspicious reputations.
- 🔍 Duplicate Contacts – Simple interface, quick scanning.
- 🧹 Contacts Cleaner – Deep cleaning, working with empty fields.
- 🛡️ Sync.ME – Not only cleaning, but also spam detection (requires caution with privacy).
After a third-party application is running, be sure to check the result manually. Automation can go wrong by combining different people with the same names.
Prevention and regular services
To keep the problem from coming back, make it a habit to check the phone book once a month, and regular data hygiene takes less time than dealing with the consequences of chaos.
Use the sync settings function in the account section, make sure that the sync of contacts is enabled for only one main account, and disabling the extra will prevent conflicts.
When changing your phone or flashing, always choose the option “Restore from Google Backup” rather than “Copy from Google Backup”. SIM-This is the golden rule of Android owners.
💡
Use voice input while saving new numbers, which reduces the risk of typos in the name that the system may perceive as a new person.
Following these simple rules will allow you to forget about dubbing and enjoy a clean, structured phone book on your Redmi or Xiaomi.