Xiaomi smartphone owners often face the unfortunate situation of a phone book turning into a chaotic list, where the same number can occur three or four times. It's not just visual noise, but a real problem that prevents you from quickly finding the right person and sending messages. Duplicates appear suddenly, after a system update or a device change, and it becomes increasingly difficult to ignore them.
The main reason lies in the mechanism of work. MIUI And the Android operating system, which by default, tries to combine data from different sources. SIM-The card, the phone's internal memory, and the cloud storage, creating a single list. If the combination algorithm crashes or the sync settings are down, you get lots of copies.
In this article, we will take a closer look at how this process happens and why it sometimes gets out of hand, how to safely clean a phone book without losing important data, and what settings need to be changed to prevent the problem from returning in the future.
Conflict of data retention sources
Modern smartphones store information about calls in several places at the same time, most often the duplication occurs because one contact is stored on the phone. SIM-And a copy of it is in the internal memory of a device or in a Google account, and when the system tries to display all the records available, it doesn't always realize that it's the same person.
The problem is especially acute when you move from an old phone to a new Xiaomi. When you transfer data via Mi Mover or Bluetooth, old records are often copied head-on, without checking for the existence of analogues in the new device, as a result, you get two contacts with the same names, but different IDs in the database.
⚠️ Note: If you see contacts duplicate immediately after import, do not manually delete them one at a time, which may result in desynchronization and loss of numbers on the next cloud update.
Also, it is worth considering that some third-party calling apps may have their own databases, and if you have used such programs before, ichthy files may conflict with the standard Xiaomi caller.
- 📱 Contacts are kept simultaneously on SIM and in the memory of the phone.
- ☁️ Sync between Google Contacts and Mi Cloud.
- 🔄 Mistakes in data importation when changing devices.
- 📲 Conflict of Third-Party Telephony Applications.
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Before you start cleaning, always back up your phone book through your Google account settings so you can roll back changes in case of an error.
Synchronization problems with Google and Mi Cloud
Xiaomi’s ecosystem is closely integrated with Google’s services, which is a plus in most cases, but sometimes leads to technical collisions.Duplication often occurs when synchronization is enabled in both Google account and Mi Cloud, but the entries pooling algorithms work differently.
This is made worse if you log in and out of accounts periodically or change passwords, and when you log in again, the system can take the local copy of your contacts as new and upload it to the cloud, creating a duplicate of the original that is already stored there.
It's important to understand how contact pairing works. It looks for matches by phone number or name. If one source has a number written as +7999... and another source has 8999..., the algorithm can count them as different people and not combine them, and the next time it synchronizes, it can create a third record.
To solve the problem, you need to check the sync status in the settings, and often it is enough to temporarily disable one of the services, clean it up, and then turn it back on, allowing the system to reconfigure the data.
How to Find and Combine Doubles Manually
MIUI has a powerful phone book tool built in to automatically find repeating records, and it's the safest and fastest way to clean up your mess without using third-party software.
To start the process, open the Contacts app and go to the settings menu (three dots or gears). Find Contact Tools or Cleanup Duplicates. The system will suggest a list of pairs or groups of contacts it considers to be the same.
☑️ Checking duplicates
Look carefully at the options. Sometimes the system makes a mistake and wants to combine different people with similar names. Once confirmed, all the selected records will merge into one card, saving all the numbers and email addresses from the original duplicates.
| Action. | Where to find out. | The result |
|---|---|---|
| Automatic merger | Contacts → Tools | Combining similar records |
| Removal of duplicates | Contacts → Settings | Completely clean the list |
| Display filter | Contacts → Settings → Display | Hiding contacts with SIM |
| Manual editing | Contact card → Change. | Addition of the second number |
| Exports/imports | Settings → Import / Export | Transfer to file.vcf |
Configure the display of contacts in MIUI
Often, the problem is solved not by removing, but by properly configuring display filters. By default, Xiaomi shows contacts from all available sources: SIM-cards, telephones and accounts. SIM-The map has old records, and the new ones are synced from Google, you can see both of them.
It is recommended to transfer all contacts to a Google account, as this is the most reliable storage that will not be lost when you reset your settings or break the screen. SIM-maps in application settings.
To do this, go to Contacts Settings, select Display Contacts (or “Contacts to Display”) and uncheck the box. SIM-Just leave your Google account, and it will instantly remove visual noise, even if the physical copies on the SIM are left.
Why can’t you just keep your contacts on SIM?
If you prefer to store your data locally, make sure that Google’s sync settings don’t check the box for permanently copying your local contacts to the cloud if there are already copies of them.
Using third-party cleaning applications
If MIUI’s built-in tools can’t handle the chaos in the phone book, Google Play’s specialty tools come to the rescue, using more sophisticated comparison algorithms to analyze not only numbers, but addresses, dates of birth, and even similar names.
One of the most popular solutions is the official Google Contacts app, which is often preinstalled or available for store updates, and features a "Current and Manage" feature that automatically finds and suggests combining duplicates throughout your account.
There are also utilities like Contacts Optimizer or Duplicate Contacts that allow you to flexibly configure rules, such as combining contacts only if the name and at least one number match, or ignoring contacts without names.
⚠️ Warning: When installing third-party contact apps, carefully read permissions. Don't give phonebook access to unverified low-ranking software to avoid personal data leakage.
After cleaning with a third-party app, be sure to check the result in the web version of Google Contacts (contacts.google.com) to make sure the changes are applied correctly and synced.
Preventing the appearance of doubles in the future
To keep the problem from returning, it is important to develop the right number saving habit. Always check where the new contact is being made at the time of its creation. At the top of the contact creation screen, the current save account is displayed.
It is recommended to force the default save in Google. To do this, in the Contacts app settings, find the "Account for new contacts" option and select your Gmail. This ensures that all new records will immediately go to the cloud and be checked for duplicates.
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The only source of truth is the key to order. Keep all contacts only in your Google account, hiding them from your account. SIM-Map and local memory of the phone from display.
Periodically, every few months, do an audit through the Google web interface, where it is most convenient to work with large lists, delete empty records and correct names that may have been misidentified when voice input or import.