Why Not All Contacts Are Shown in Xiaomi’s Phone Book

When a number is suddenly lost after a system update or account synchronization in a Xiaomi device, many users panic. The phone book is a critical element of the operating system, and its incorrect operation can paralyze communication. Most often, the problem lies not in hardware failure, but in software filters or access rights conflicts between applications.

Operating system MIUI HyperOS has a complex data storage structure where numbers can be linked to different sources: SIM-If the display settings are lost, the interface can only show one group, ignoring the others. It's important to understand that the data itself is often not going anywhere, it's just hidden from the user's eyes.

In this article, we will take a closer look at the algorithms for diagnosing and troubleshooting lost records, learn how to manage contact sources, clean the cache of system applications, and use hidden features to force database updates. Restoring access to your address book will take only a few minutes if you follow the instructions below.

The main reasons for the disappearance of numbers in MIUI

The root cause of the problem is often a banal display filter that the user may have accidentally activated. In the settings of the Contacts app, it is possible to show only certain recordings from a certain location. SIM-If you moved your SIM card or changed your account, the phone will search for numbers from a new source, ignoring the old one.

Another common reason is data caching. Android tends to speed up the interface by saving temporary files. However, when com.android.contacts fail, these files can be corrupted, causing the subscriber list to stop being updated visually even though the physical data is in place.

Third-party application conflicts should also be considered, because if you recently installed a new dialer or number-detection program, it may have hijacked the database management rights and misrepresented it, and in rare cases, antivirus programs with anti-virus functionality that block access to personal data when suspicious activity occurs are the cause.

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Before you start a deep diagnostic, be sure to back up your existing contacts through Mi Cloud or Google Contacts to avoid permanent data loss.

Configure display filters in the Contacts app

The first step in solving the problem should be to check the built-in filters. Often users do not notice that the menu activates the mode "Favourites Only" or "SIM Only". To check, you need to open the Contacts app, click on three dots in the corner of the screen and select the option "Display Settings" or "Contacts to display".

In the menu that opens, you'll see a list of all available data sources. Make sure that you're opposite the "Phone" items», «SIM-If a source is disabled, the system forcibly hides all the numbers stored in that location, creating the illusion of losing them.

Note that item names may vary slightly from one version of MIUI to another, and some shells have this feature in a separate Contacts Organization menu, and if you don't update the list after you've turned on all the sources, try switching the view back and forth several times, and this will force you to restart the list rendering process.

Work with data sources: SIM-map

Storage of numbers SIM-The problem with this is that the SIM card memory is limited and often does not support long names or special characters, which can lead to read errors in modern Xiaomi smartphones.

It is recommended to transfer all records to internal memory or sync them with Google Contacts. To do this, go to the contact settings and select the Import / Export function «SIM-map" and the appointment of "Phone" or "Google"; after the process is complete, the originals on the SIM can be deleted to avoid duplication.

If you use multiple Google accounts, make sure that sync is enabled for each of them. Go to Settings → Accounts and sync, select the appropriate account and check if the slider opposite Contacts is active. If sync is stopped, new numbers will not appear in the shared database.

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Transfer of contacts with SIM-Maps in the Google cloud account is the only way to guarantee their safety in case of loss or breakage of the smartphone.

Clearing the cache and resetting the Contacts app

When the filters are set up correctly and the numbers are still not visible, you need to clean the cache of the system application. This is a safe procedure that does not delete the numbers themselves, but only resets temporary files that may have been damaged. Go to Settings → Applications → All applications and find in the Contacts list.

In the app menu, click on Clear and select Clear Cache. If that didn't work, you can try a more radical method - Clear Everything (or Reset). Attention: in some versions of MIUI, this item may be called Delete Data, but it only concerns the app's display settings, not your database if it's synced to the cloud.

⚠️ Before performing a complete reset of the Contacts app, make sure your numbers are saved to the Google or Mi Cloud cloud, otherwise local drafts may be lost.

Once cleaned, restart your smartphone. When you first start up, the Contacts app will recreate the database, scanning all available sources, a process that can take anywhere from 30 seconds to a few minutes depending on the number of records. Don't interrupt your phone at that point.

Hidden codes and engineering menu for diagnostics

For advanced users, it is possible to check the status of the database through an engineering menu or special ones. USSD-Entering code ##4636### opens the testing menu, where you can see the registration status of the network in the "Phone Information" section, which indirectly affects the reading of contacts with the Internet. SIM.

A more efficient way is to use the database check function. Some MIUI builds use code ##84837## (TESTINFO) to run diagnostics of the core modules, but the most effective way to shake up the system is to switch the network mode.

Try temporarily switching modem modem: go to Settings → SIM-maps and mobile networks → Network type and select "Only" 2G», Wait. 10 Then return the words “preferably” 4G/LTE». This action forcibly reboots the radio module and reads data from the SIM card chip again, which often solves the problem with the “missing” numbers.

• 📱 Check to see if Do Not Disturb mode is enabled, which can hide notifications of new contacts.
• 🔍 Make sure that the phone book search bar does not have a filtering symbol left.
• 🔄 Try to temporarily shut down the internet to eliminate real-time synchronization conflict.

Recovering Remote Contacts Through Google

If it turns out that contacts were not just hidden but accidentally deleted, don't despair: Google Contacts has a built-in Recycle Bin feature, where deleted records are stored for 30 days, and access to this archive is only possible through the web version of the service.

You need to access contacts.google.com from your computer or through your phone browser in Full Version mode. On the left menu, find Trash, where you will see a list of all deleted numbers with the date of deletion.

Tick the boxes and click the Recover button. Then turn on the sync on your Xiaomi smartphone, and in a few minutes, the numbers will appear in the phone book, which is the most reliable way to recover lost information without using third-party software.

⚠️ Note: The recovery function from Google Recycle Bin only works for 30 days. After this period, the data is deleted irrevocably.

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