Owners of smartphones Xiaomi, Redmi and Poco often face an unpleasant situation when, after transferring data or synchronizing with the Internet, they are not able to use the device. SIM-The same numbers can be repeated dozens of times, creating confusion and making it difficult to find the right subscriber. It's not just a visual defect, it's a real problem that prevents effective communication.
Fortunately, the built-in tools of the MIUI shell and the new HyperOS allow you to cope with this task in minutes without installing third-party software. In this article, we will discuss in detail all available methods, from automatic combination to manual cleaning, and also examine the causes of errors in the database.
We will touch on the important nuances of working with your Google account and Mi Cloud, which are often a source of duplication of records, you will learn to distinguish between system failures from user errors and understand how to permanently get rid of the clutter in the call list.
Reasons for the appearance of duplicates in the phone book
Understanding the source of the problem is the first step to solving it, and most often, the duplication occurs when you change your device, when the user transfers contacts from the old phone through the phone. SIM-You can add old records on top of them, you can add new ones on top of them, you can make copies.
Another common reason is synchronization with multiple accounts at the same time, for example, if Google, Outlook and Mi Account accounts are active on a smartphone and each has the same numbers, the system can display them as separate entities, especially for those who change gadgets frequently.
Also worth mentioning is the failure of the Contacts app itself, which sometimes, after updating the firmware or resetting the settings, the software algorithm mishandles the existing database, labeling unique records as new, and in rare cases, third-party messengers who create their own copies of contacts to display avatars are the culprits.
⚠️ Warning: Before you start any manipulation of the phone book, be sure to back up. Even automated tools can make a mistake and delete the required records instead of duplicates.
Automatic connection of contacts through settings
The easiest and safest way to clean up is to use the built-in merging feature, which Xiaomi shells are equipped with a clever algorithm that analyzes phone numbers and names, suggesting that similar records be combined, a method ideal for primary cleaning.
To start the process, you need to open the standard Contacts app. In the upper right corner of the screen, find a three-dot menu or settings icon. In the list that opens, select "Consolidate duplicates" or "Contact management" and then "Clear duplicates." The system will scan.
After analysis, a list of matches will appear on the screen, so you can view each group and confirm the merger manually or click the "Combine All" button, which takes only a few seconds even if there are thousands of records in the device's memory.
☑️ Pre-merger check
Importantly, the auto-merge function works most effectively when contacts are stored in a single space, such as only in a Google account. If records are scattered across different storages (SIM, phone, cloud), the algorithm may not see the connections between them.
Manual cleaning and editing of records
Automation is not always perfect, especially if the numbers are written in different formats (for example, +7 and 8, or with or without country code).
In edit mode, you can add a missing number to an existing card, then delete the extra one. Click on the phone or mail icon to add a new field, enter the data and save the changes. After that, delete the second, now unnecessary entry.
For mass removal, select unnecessary contacts with a long tap. In the menu that appears, select the basket icon. Be extremely careful when mass removal is performed, so as not to erase important numbers that the system did not recognize as duplicates.
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Use a search by name or number in the Contacts app to quickly find hidden duplicates that didn’t make it to the general list when automatically scanning.
The manual method takes longer, but gives you complete control over the outcome, and it's the only way to correct the names errors when the same person is recorded as "Alexei" and "Lesha," which is different people for the fusion algorithm.
Work with Google and Mi Cloud accounts
Often the problem is not with the phone itself, but with cloud services. If you use sync, duplicates can come back even after you delete. Go to your phone's settings, Accounts and Sync, and check the sync status for Google and Mi Account.
It is recommended to temporarily disable contact synchronization before cleaning, this will prevent the re-download of deleted data from the cloud. Once you have cleaned up the local memory of the phone, you can carefully turn the sync back on by selecting the option "Combine" in case of data conflict.
It’s also helpful to check the web version of Google contacts (contacts.google.com).There’s a “Combine and Fix” tool that often works more accurately and faster than on a mobile device. Changes made to the web version will automatically apply on the smartphone once sync is enabled.
Pay special attention to filtering the contacts you display, and in Contacts, you can choose which accounts to show through the settings menu, and by turning off those that are unnecessary, you can make navigation easier and reduce the risk of confusion in the future.
Using third-party cleaning applications
If Xiaomi’s built-in tools don’t seem functional enough, you can turn to proven solutions from Google Play. There are specialized utilities such as Duplicate Contacts or Merge & Split that offer advanced functionality for working with databases.
These apps often find duplicates not just by numbers, but by overlapping names, email addresses, or even photos, and can scan all connected accounts simultaneously, providing a single picture of the phone book.
But it's important to keep security in mind, because when you give a third-party app access to your contacts, you trust it with personal information, and you only choose popular programs that have high ratings and a lot of positive feedback from well-known developers.
⚠️ Warning: Avoid using "cleaners" of dubious origin that promise to speed up the phone, often with ads or data collection without their knowledge.
After using third-party software, it is recommended to check the result manually again. Automatic algorithms of third-party developers can be too aggressive and combine contacts of different people with similar names.
Exports and imports for a complete re-recording of the base
A radical but effective method is to export contacts to a.vcf file and import them, which allows you to shake up the database and eliminate hidden indexing errors that are not visible in normal browsing.
Go to your contacts and select "Import/Export Contacts." Save all records to internal memory or to SD-Then delete all contacts from the device (making sure the file is saved!) and re-import.
When importing, the system will suggest selecting a target account, select a primary account (like Google) so that all records go to the cloud immediately, and when downloaded from a file, many modern systems will automatically suggest skipping existing records or combining them.
What to do if the.vcf file is not readable?
This method is particularly useful when migrating from other operating systems, such as iOS or older versions of Android, where the formatting of the data may have been different.
Table of comparison of cleaning methods
To make it easier to choose the best way to solve the problem, we have prepared a comparative table that will help you quickly navigate depending on the number of duplicates and your technical background.
| Method | Difficulty | Speed. | Risk of data loss |
|---|---|---|---|
| Automatic merger | Low. | Tall. | Minimum |
| Manual removal | Medium | Low. | Absent. |
| Synchronization of Google | Medium | Medium | Medium. |
| Exports/imports | Tall. | Medium | High-pitched |
As you can see from the table, for most users, the best option is built-in automatic merger, which combines safety and speed, and more sophisticated methods should be used only in advanced cases.
Preventing the appearance of doubles in the future
To prevent the problem from returning, you need to change your smartphone usage habits. SIM-This format is obsolete, has limitations on the length of the number and name, and often leads to errors in transferring the number.
Set your phone to keep all new contacts in your Google account by default, which will automatically back them up and protect them from loss when you change your device, go to the Contacts app settings and set your account as your preferred account to save.
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Keep your contacts only in your cloud account (Google or Mi Cloud) and never copy them back to your account. SIM-card or phone memory without need.
Check your phone book regularly, at least every six months, for bugs; it’s easier to delete a few extra records at once than to scrape through thousands of duplicates; and keep an eye out for MIUI updates, as newer versions often improve data algorithms.