Why the contacts disappear on Xiaomi smartphones: causes and solutions

You opened the phone book on the Xiaomi Redmi Note 12 or POCO X5 Pro, and half of the contacts don't happen? The situation is familiar to many smartphone users of this brand, and the disappearance of contacts is one of the most annoying problems that can arise at the most inopportune time. Unlike accidentally deleting photos or messages, contact loss often goes unnoticed until you need to call.

The causes range from simple user errors to deep system failures. In some cases, contacts are simply hidden from view but remain in the device’s memory, in others they are irrevocably erased. MIUI, It has unique features of working with the phone book, such as duplicate contacts between a Google Account and a Mi Account or aggressive memory optimization in the background.

In this article, we will discuss the 7 main reasons for the disappearance of contacts on Xiaomi smartphones, from the most obvious to the little-known technical nuances, you will also find step-by-step instructions for restoring deleted numbers and ways to prevent the problem from recurring. We will pay special attention to the differences between the models MIUI 13 and MIUI 14, because the synchronization algorithms are different.

1. Google Account Sync: Why Contacts “Disappear” by Their Own Message

The most common reason for missing contacts is due to incorrect synchronization between the device and Google Account, and many users are unaware that their phone book is by default tied to Google’s cloud, not the smartphone’s local memory, while Xiaomi adds its own layer of complexity, duplicate synchronization through the Mi Account.

A typical scenario is that you add a new contact, but after a few days it disappears.

• 🔄 Google and Mi Accounts Conflict: If both services try to sync the same data, records may be wiped out.
• ☁️ Cloud sync errors – for example, when changing a password in Google or two-factor authentication.
• 📱 Automatically reset your synchronization settings after the update MIUI.
• 🚫 Manually disabling synchronization (for example, to save battery life).

To check if Google is to blame, go to Settings → Accounts and synchronization → Google → [your account] → Contact synchronization. If the switch is off, turn it on and wait until the process is complete. If the contacts don't come back, try forced synchronization:

Open the "Contact" appendix

Press three points (⋮) → "Settings" → "Contact management"

Select “Sync Now” for Google Account

Reboot your phone and check the phone book-->

Important: If you have previously used multiple Google Accounts on a single device, contacts may have been shared between them.

2. reset to factory settings: how not to lose contacts

One of the most painful reasons for losing contacts is hard reset, and many Xiaomi users are facing the need to reset because of:

• 🐢 Slowdown of the smartphone (especially on models with 4/64 GB memory).
• 🔄 Preparations for the sale of the device.
• 🛠️ Removing critical errors after a failed update.

The problem is that Xiaomi doesn’t default to saving contacts in local memory when resetting unless they’re tied to an account. Even if you’ve backed up through Mi Cloud, it can sometimes be difficult to restore the phone book due to server errors.

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Before resetting, export contacts to the file VCF: Open the "Contact" appendix" → ⋮ → "Imports/Exports" → "Export to device memory. The file can be copied to a PC or other phone.

⚠️ Note: If you reset your phone to factory settings and haven’t made a backup, try re-establishing contacts through Mi Cloud within 30 days of resetting. To do this, when you first turn on, select the option "Restore from backup" and log in to the same Mi Account that was previously linked.

3. Viruses and malware: a hidden threat to the phone book

Unpleasant, but very real reason for the disappearance of contacts is the action of viruses or spyware. Xiaomi smartphones, especially with an unlocked bootloader or installed custom recavery (TWRP), vulnerable:

• 🦠 Trojans that steal and delete data (such as FakeApp or GinMaster).

Users are particularly at risk, who:

• 🌐 Installation APK-files from unverified sources (for example, from APKMirror or torrent trackers).
• 🔗 Click on suspicious links in SMS messenger.
• 📲 Use "hacked" versions of apps (such as WhatsApp Plus or Spotify Premium mod).

To check your phone for viruses:

1. Install a high-rated antivirus (such as Bitdefender or Kaspersky).
2. Start a deep scan (not fast!).
3. Check the list of installed applications in Settings → Annexes → App management. Pay attention to programs with unknown names or high battery consumption.
4. If you find suspicious software, remove it and reset to factory settings.

4. Update errors MIUI: When the system eats up the contacts

Updates MIUI They often bring new features, but sometimes they cause data loss, including contacts:

• 🔄 Incomplete data migration when switching to a new version (for example, with the MIUI 13 on MIUI 14).
• 📱 The com.android.contacts service that manages the phone book.
• 🗃️ Cleaning the cache of system applications without warning.

A typical scenario is that after updating, you see a notification that says “Contacts are optimized” and then you find that some numbers are missing, most often it affects Xiaomi models with low memory capacity (3/32 GB 4/64 GB) where the system aggressively cleans the cache.

To minimize the risks before updating:

Create a backup copy of contacts in VCF-file

Disable Automatic Optimization in Settings → Battery → Optimization

Make sure there is enough free space on your phone (minimum 2GB)

Connect to a stable Wi-Fi network (not mobile internet!)

Charge your phone at least 50 times%-->

If your contacts are missing after the update, try:

1. Restart your phone in Safe Mode (click the power button) → "Safe Mode Restart. If contacts appear, the third-party app is to blame.
2. Clear the cache of the "Contact" application in Settings → Annexes → Application management → Contacts → Memory. → Clear the cache.
3. Reverse the update (if available) or wait for a patch from Xiaomi.

Yeah, once.

Yeah, a few times.

No, but there were other glitches.

No, never.

I don't know.-->

5. Conflict between SIM-card-book

Many Xiaomi users face the problem of having contacts duplicate or disappear when switching between the two. SIM-It's because of the fact that:

• 📱 The phone book by default saves contacts to SIM-map, not in memory of the device.
• 🔄 When extracted SIM Contacts are not available (though technically not deleted).
• 📌 On some models (e.g. Redmi) 9A or POCO M3) There is a bug that causes contact with SIM not appearing in the general list.

Check if the contacts are kept on SIM:

1. Open the Contacts app.
2. Press three points (⋮) → "Settings" → "Contact management".
3. Look at how many contacts are tied to SIM 1 SIM 2.

If the contacts are kept on SIM, We recommend you transfer them to Google Account or local memory:

1. Export contacts with SIM file VCF (via “Import/Export").
2. Import the file back by selecting Google or Device as your save location.
3. Remove duplicates from SIM-maps to avoid confusion.

⚠️ Attention: SIM-cards have a limit on the number of contacts (usually 200-250).If you exceed the limit, new numbers will not be saved, and old ones may disappear during editing. SIM-maps (e.g. from China Mobile) in Xiaomi’s European smartphones – this can lead to encoding errors in contact names.

6. Contacts app errors and system glitches

Sometimes the problem lies not in synchronization or viruses, but in the application "Contacts", which is the most important. MIUI multiple versions:

• 📱 Stock app (from Xiaomi) – often glitches on new versions MIUI.
• ☁️ Google Contacts are more stable, but may conflict with the MIUI.
• 🛠️ Modified versions (for example, in Xiaomi.EU firmware).

Typical symptoms of malfunction:

• Contacts are displayed, but when dialing the number, an error is given "The number does not exist."
• The Contacts app is constantly restarted.
• Searching the phone book doesn’t work (it doesn’t even find the numbers saved).

Decisions:

1. Cleaning the application data: go to Settings → Annexes → Contacts → Memory. → Clear the data. Attention: this will delete all unsynchronized contacts!
2. Switch to Google Contacts: Install the app from Google Play and make it the main one in the default settings.
3. Update rollback: If the problem occurs after the app update, go back to the previous version via Settings → Annexes → Contacts → ⋮ → Remove updates.

If nothing helps, try alternative contact management apps, such as:

• Simple Contacts (minimalist interface, no advertising).
• Contacts+ (Extended functions, integration with social networks).
• Truecaller (Spam Blocking) + phonebook).

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Before installing a third-party contact app, turn off automatic synchronization in the standard Contacts app to avoid data duplication.

7. Hardware malfunctions: when "iron" is to blame

In rare cases, the disappearance of contacts is associated with physical damage to the smartphone.

• 💾 Damaged flash memory (especially on Redmi budget models with eMMC memory).
• 🔋 Failed battery causing sudden shutdowns during data recording.
• 📶 Problems with the communication module (for example, after the fall of the phone).

Signs of hardware malfunction:

• Contacts disappear after physical exposure (hit, fall, moisture).
• The phone is spontaneously rebooted when the phone book is opened.
• Other data (photos, messages) are also lost or damaged.

What to do:

1. Check the memory status with the application AIDA64 (Memory" section. If there are bad blocks, contact the service.
2. Test your phone for stability with the help of CPU Throttling Test (if the device overheats, it may indicate power problems).
3. If the phone fell or got wet, do not turn it on - take it to the service center for diagnosis.

⚠️ Note: On Xiaomi models with UFS 2.2 (e.g. Xiaomi) 12T or Redmi K50) Memory damage can lead to complete data loss without recovery. If the phone starts to "glut" after the update, do not delay the diagnosis - the sooner you identify the problem, the better the chances of saving contacts.

FAQ: Frequent questions about missing contacts on Xiaomi