Removing Repetitive Contacts on Xiaomi Redmi 9T: The Complete Guide

The problem with duplicate phone book entries is a classic situation for Android users, and owners of Xiaomi Redmi 9T It's not an exception. It's often after a shift. SIM-maps, data transfers from an old device, or cloud sync failures: having two identical numbers under different names, or the same name with different numbers, makes it much harder to find the right subscriber and creates visual noise in the interface.

The MIUI operating system on the Redmi 9T offers a powerful built-in address book toolkit that users often ignore. Before you start installing third-party software, you should understand the native features of the gadget. Competent contact management is not just aesthetics, but also an important aspect of digital hygiene that affects the speed of the interface and the ease of communication.

In this article, we will take a closer look at all the ways to clean a call list, learn how to manually combine records, use automatic synchronization with a Google account, and use specialized utilities to deep clean the database, and we will also look at the causes of duplicates to prevent them from appearing in the future.

Reasons for the appearance of duplicates in the phone book

Understanding the source of a problem is the first step to solving it effectively, and most often, duplicates arise from dissynchronization between your phone’s local storage and cloud services, so when you change your device or restore your backup, the system can treat the saved numbers as new, creating copies of them instead of combining them with existing ones.

Another common reason is the simultaneous use of multiple storage sources: SIM-Maps, internal device memory and Google account. Xiaomi Redmi 9T By default, it can display contacts from all sources at once, creating the illusion of duplication, although the records are actually in different "layers" of memory.

⚠️ Note: Before starting a mass cleanup or merger of records, it is strongly advised to back up the phone book, which will allow you to recover data in the event of an unexpected error or accidental deletion of important information.

Contacts itself may also fail to display correctly, sometimes after updating the firmware or installing security patches, the contact database requires re-indexing, at which point old and new entries may appear as separate items, even if they are identical.

Use of the built-in linking function

The safest and most recommended method for Xiaomi Redmi 9T owners is to use the regular system tools. Google’s Contacts app, which is preinstalled on most global versions of MIUI, has a hidden but powerful merger mechanism that allows you to automatically find similar records and combine them into one card.

To start the process, you need to open the Contacts app and go to the settings, which are usually hidden under the gear icon or three dots in the corner of the screen, and select Contact Management or Contact Management. The system will offer the Merge & Fix option. The algorithm will analyze the database, find matches by phone number or name and suggest combining them.

The merger process is as follows:

• 🔍 The system scans all sources (Google, phone, SIM).
• 🔗 Finds records with the same phone numbers or very similar names.
• ⚡ Automatically combines fields, creating a single card with full information.
• 💾 Save changes in the cloud and on the device.

Importantly, the “Combine and Fix” function works most effectively if your contacts are synced with your Google account, in which case Google’s machine learning algorithms analyze data on the server, which increases the accuracy of determining duplicates. If you store numbers only in your phone’s memory, the effectiveness of the built-in tool may be lower.

Manual deletion and editing of records

Automated systems aren't always perfect. There are situations where numbers are similar but belong to different people (e.g., home and work numbers are written the same), or where names are spelled out with typos. In such cases, the Xiaomi Redmi 9T has to use manual editing. It's a more time-consuming process, but it gives you complete control over the contents of the address book.

To manually delete, open a contact you think is unnecessary. Click on the menu button (three dots) and select "Delete." If you want to combine two contacts manually, open the first contact, click "Edit", scroll down to "Related Contacts" or "Add Contact" and select the second entry, after which all numbers and mailing addresses will be collected in one card.

When manually deleting, you should be careful of the source of the save. SIM-Deleting the card may take longer because of the specifics of the card memory chip, and deleting it from the Google cloud is almost instantaneous and affects all devices that log in to the account.

The table below shows the differences between the sources of contact storage on Redmi 9T:

Manual control is especially important when automation offers to combine contacts that are actually different people with the same names (for example, "Alexander Ivanov").

Set up sync with Google Account

The key to running your Android phonebook correctly is to set up sync correctly. On Xiaomi Redmi 9T, this is done through the system settings menu. Go to Settings → Accounts and Sync → Google. Make sure the switch opposite the Contacts item is activated.

Synchronization with Google solves two tasks: it saves your data from loss when your phone breaks and allows you to manage contacts through the web interface contacts.google.com. In the web version, the functionality for finding and removing duplicates is often even wider than in a mobile application, where you can massively allocate groups of contacts and apply actions to them.

To activate full synchronization, follow the following steps:

• 📲 Go to your phone settings and select "Accounts".
• 🔐 Click on your Google account and make sure the “Contacts” box is ticked".
• 🔄 Click the menu button and select Sync to force the update.
• 🌐 Check the results on the Google Contacts website.

If sync is disabled, all new contacts can default to the phone’s memory, which in the long run leads to a proliferation of databases and duplicates every time you flash or reset settings. Cloud storage ensures that your list is always up-to-date and clean.

⚠️ Warning: When you turn on sync on a new device or after resetting settings, there may be a temporary doubling of records. 10-15 minutes to conduct the deduplication and consolidation of data.

Application of third-party cleaning applications

If MIUI and Google's built-in tools fail, specialized apps from the Google Play store come to the rescue. There are many utilities, such as Contacts Optimizer, Duplicate Contacts, or Clearer for Contacts, that use more aggressive search algorithms, comparing not only numbers, but also the sound of names, email addresses, and even photos.

However, using third-party software requires extreme caution: You give the app access to your entire address book, including personal numbers of friends and colleagues; Choose only proven programs with high ratings and a lot of positive reviews; Avoid little-known utilities that require excessive permissions.

Popular functions of third-party cleaners:

• 🧹 Finding exact copies of numbers.
• 🔤 Combining contacts with similar names (for example, Ivan and Ivanov").
• 📸 Merging cards with the same photos.
• 🗑️ Mass removal of empty or incomplete records.

After a third-party application is running, it's recommended that you manually check the results, and the algorithms can get it wrong and combine different people with rare names or the same office numbers, and it's better to spend time checking than then reconnecting.

💡

Use Plane Mode when working with third-party contact cleaners, which will prevent instant synchronization of potentially misguided changes to Google’s cloud, allowing you to first check the result locally.

Preventing Duplicate Contacts

In order not to return to the issue of cleaning contacts on Xiaomi Redmi 9T, you should develop the right habit of saving them.The main recommendation is to always choose the source of saving Google account, which will eliminate problems with data transfer and provide automatic protection from duplication when changing devices.

It's also worth regularly auditing the phone book, and every six months, it makes sense to go through the list and delete unnecessary numbers, correct names, and check the relevance of the data. It takes a little while, but keeps the database in order. SIM-cards, unless urgently needed; modern smartphones easily import them (once) when initially set up.

An important aspect is the configuration of the display: in the Contacts app, you can choose whether to show contacts only from your phone, only from Google or all at once. The Google Only mode often helps to visually remove duplicates that are actually local copies of cloud records.

These simple rules will allow you to forget about the problem of chaos in the phone book, and a clean list of contacts is not only convenient, but also safe, as it reduces the risk of calling the wrong place or confusing the subscriber.

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The key to ordering your contacts is a single storage source, so keep all your Google Account numbers, and the system will protect you from duplicates when you change devices.