The sudden disappearance of a phone book is always stressful, especially if it holds important work numbers or personal connections that have nowhere else to go. The situation when all contacts from the Xiaomi phone have been deleted can occur after a failed system update, synchronization failure or even accidentally pressing the wrong button in the menu. MIUI HyperOS has deep backup mechanisms that many users do not even know about.
Before you start actively saving data, you need to understand exactly where your default records were saved. Most often, numbers are not deleted physically, but simply hidden due to an error in display or switching your account. In most cases, recovery takes 5 to 15 minutes if you act consistently and do not create new records on top of the old ones, which can lead to their complete wipe.
In this article, we will take a look at all possible data loss scenarios and provide step-by-step instructions for returning them, learn how to check hidden folders, use Google’s or Xiaomi Cloud’s cloud archive, and how to extract information directly from the data. SIM-The key is to stay calm and follow the algorithm, because chaotic actions can make it harder.
Primary diagnosis and display check
The most common reason for missing numbers is not physical deletion, but a failure in the contact filter. The operating system allows you to sort entries by account, and if you choose an empty list by default, the phone book will look clean. You need to open the standard Contacts app and click on the three dots or menu icon in the upper right corner of the screen.
In the menu that opens, find Contact Filter or Contact Display. Make sure it ticks against All Contacts or All Numbers. Often, the system switches to displaying only records from the same location. SIM-A map or a specific Google account that doesn't have any entries.Switching browsing mode often instantly returns missing numbers to the screen.
It's also worth checking if Hidden Numbers or Blacklist modes are turned on, where important entries may have accidentally been taken, and sometimes after a MIUI update, privacy settings are reset to stricter ones, hiding contacts that don't have a confirmed status or avatar, and checking these basic settings is the first and most secure step that doesn't require an internet connection.
- 📱 Open the Contacts app and go to the display settings.
- 🔄 Switch the filter from Phone to All Accounts or "SIM-map".
- 👁️ Check if the mode of hiding numbers without photos is activated.
- ⚙️ Make sure the right account is selected in the menu for sync.
⚠️ Note: If you see contacts in the filter menu but they don't show up in the shared list, do not create new entries right now.This can disrupt the database structure and make it harder to automatically restore the system.
Recovery through Google Contacts
If your smartphone was linked to a Google account, you have the most reliable data recovery tool, the Google Contacts web interface, which stores a history of changes for 30 days, allowing you to roll back the status of the phone book to any date in the past, especially if contacts have been deleted massively and recently.
To get started, go to contacts.google.com from your computer or through your smartphone browser. In the upper right corner, click on the gear icon (Settings) and select Cancel Changes. The system will suggest you choose a time frame: 10 minutes ago, 1 hour, yesterday or a specific date.
Select the date before the number disappears. Once confirmed, Google will back up the current status (in case of an error) and roll back the contact list to the selected time. Within minutes of syncing on the Xiaomi device, all numbers should reappear.
☑️ Checking before Google rollback
It is important to note that the Cancel Change feature affects all contacts associated with this particular Google account, if some of the numbers were stored locally in the phone's memory or on the phone. SIM-They're not affected by this process, but they're not going to be recovered through this tool, so this is ideal for those who have digital hygiene and synchronized the data.
Using Xiaomi Cloud to Recover Data
Xiaomi, Redmi and POCO smartphone owners have access to the company’s own cloud service, which is often ignored in Google’s favor.However, Mi Cloud has a unique “Basket” feature where remote contacts are stored for up to 30 days, even if you haven’t made a manual backup.
To use this method, go to the official i.mi.com website and log in to your Mi Account. From the menu, select Contacts, then find the Additional button or the menu icon in the corner, there will be Restore Contacts or Recycle Bin.
The system will show you a list of deleted records with dates, you can select specific numbers or use the "Recover All" function. Once confirmed, the data is automatically synced with the phone if it is synced with Mi Cloud in the Settings section. → Mi Account. → Xiaomi Cloud.
| Parameter | Google Contacts | Xiaomi Cloud | Local storage. |
|---|---|---|---|
| Storage period | 30 days | 30 days | Before the re-recording |
| We need the Internet. | Yes. | Yes. | No. |
| Type of account | Mi Account | No. | |
| Difficulty | Low. | Medium | Tall. |
What if you have not created a Mi Account?
Verification SIM-maps and importation
Many users still store numbers directly on the chip. SIM-cards, especially if they change phones frequently or use button models. If contacts are lost from the memory of the smartphone, chances are that they simply do not load into the interface or were hidden by the import settings.
Go to the Contacts app, click on the menu (three dots or bars) and select Import/Export Contacts. From the list that opens, select Import from SIM-The system will prompt you to choose an account where to save numbers - select your main Google account or device memory.
Once the import process is complete, be sure to check the phone book. If the numbers appear, it is recommended to export them immediately to the.vcf file or enable synchronization, so that in the future it does not depend on a physical medium that is easily damaged or lost.
- 📲 Go to the Contact Management Menu.
- 💾 Select the item "Import with" SIM-map".
- ☁️ Save a copy to the Google or Xiaomi cloud.
- ✅ Check if all the numbers are on the list.
It is worth considering that SIM-cards have limited memory and often crop long names or do not support the retention of additional fields such as email or address. Therefore, storing the main database of numbers on a SIM is considered an outdated method, but as an emergency reserve it works faultlessly.
Search for local MIUI backups
MIUI automatically creates local backups of the system and data, unless the feature was manually disabled by the user, which are stored in hidden folders of internal memory and may contain the current version of your phone book at the time of the last backup.
Open the Explorer or Files app and follow the MIUI → backup → AllBackup path. Date folders may be located here. If you find a file with the.bak extension or similar, try running the recovery process through the Settings menu → About Phone → Reservation and Restore → Restore.
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Local backups take up a lot of space, and if you've never done one, check the Cloud folder in the conductor, and sometimes the system caches the synchronization data there.
An alternative way to find lost data is to search for.vcf files throughout the memory of the device. In Explorer, use the search function for the keyword “contact” or the extension “.vcf.” Often old export files created by you or messenger applications remain in memory and contain current numbers.
⚠️ Note: When recovering from a local copy, the system may suggest replacing the current data. Make sure the backup file does have the numbers you want, otherwise you can replace the blank list with an even older or blanker one.
Third-party applications and professional recovery
If the built-in methods didn't work, you can turn to specialized software. There are PC programs like Dr.Fone, Tenorshare UltData or DiskDigger (for Android) that scan the phone's memory for deleted but not overwritten data, and the effectiveness of these methods depends on the time elapsed since the deletion.
For the work of most of these programs, you need to turn on the smartphone debugging mode on USB. This is done in the Settings menu. → The phone. → 7 times press "Version" MIUI", Then the debugging is activated in the advanced settings. Once you connect to the computer, the program will try to find traces of the deleted database. contacts2.db.
It should be understood that modern versions of Android and HyperOS use memory encryption, which makes it very difficult to recover deleted files by third-party utilities without root rights. If the data was deleted long ago and the phone's memory was actively used (photos were taken, applications were put), the chances of success are reduced, as old memory cells are overwritten with new information.
In cases of critical data importance, when it comes to corporate information, it is more advisable to contact a specialized service center. Specialists may try to dump memory or use more powerful hardware to read residual data, but this is a paid service that does not guarantee 100% results.
Preventing Data Loss in the Future
To make sure that you never get caught off guard again, you need to set up automatic synchronization, which is a basic digital hygiene rule that takes one minute but saves hundreds of nerve cells, and make sure that the Google account settings tick the "Contact" box and sync is enabled.
It's also useful to manually export your phone book to a.vcf file once a month and send it to your messenger or email. This file weighs only a few kilobytes, but contains a text copy of all your connections that you can open on even the simplest phone or computer without the Internet.
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Automatic synchronization with Google is the only reliable way to protect against loss of contacts when changing or breaking a smartphone.
Remember to check where new numbers are saved, and when you create a new contact, the system often suggests you choose the default location, and if you have a phone or a SIM, change that to your Google account so that the new records go to the cloud.