Accidentally deleting important correspondence on a smartphone is a stressful situation that almost every Android user has faced. It is especially frustrating to lose access to confirmation codes, addresses or personal correspondence on the popular Xiaomi Redmi 9 device. Many users mistakenly believe that after cleaning the cart or confirming the deletion, data disappears forever, but this is not quite true. Physically, the information remains in the device’s memory until it is overwritten with new files, which gives us a time window for action.
Recovery SMS-message-based MIUI It requires a systematic approach and an understanding of how the operating system manages the messaging database. Unlike messengers like WhatsApp or Telegram, standard messaging systems are not very good. SMS They often don’t sync with the cloud by default unless you set up the feature in advance. However, there are several proven algorithms to recover lost information, ranging from built-in tools of the Xiaomi ecosystem to third-party software.
Before you start taking action, you need to immediately stop using your phone actively. Recording new data, installing apps or creating photos can permanently erase the traces of deleted messages in system spreadsheets. Below we will discuss in detail all available methods, from the simplest to the most technically complex, so you can choose the best option for your situation.
Using the Mi Cloud Cloud Service to Recover
The first and most native way for Redmi 9 owners is to use the built-in Mi Cloud service. Xiaomi provides users with the ability to automatically synchronize key data, including SMS, contacts and notes. If your device has activated Mi Account and enabled the function of synchronizing messages, your data is already in secure storage. This is the most secure method that does not require the installation of third-party software.
To check for backup, you need to go to the phone's settings menu. Find Settings → Mi Account → Mi Cloud. Here you will see a list of data categories; if the "Messages" box is ticked and the time of last sync is indicated, your chances of success are extremely high. It is important to understand that sync may have occurred long before the moment of deletion, so you can only restore the messages that were in the phone at the time of the last backup.
⚠️ Note: When you enable sync after deleting messages, the phone may try to update the cloud to the current (empty) state. To avoid this, first sign in to the cloud version of Mi Cloud through your browser on your PC and check if there are any necessary ones there. SMS.
If data is present in the cloud, the recovery process is simple: simply turn on the SMS sync switch on a new device or after resetting the settings. The system will automatically tighten the correspondence history. In some cases, manual activation through the data recovery menu in the account settings may be required.
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Enable SMS sync in Mi Cloud right now, even if the messages are intact, and this will create a recovery point for the future.
Checking backups of Google Drive
The second layer of data protection on any Android device, including Redmi 9, is the Google ecosystem. The operating system regularly offers to back up the application and system data that is stored on the user's drive. While Google Drive does not always keep the text of the SMS in a user-readable form by default, many messaging apps use this backup channel.
To check for a backup, open the Google One app or go to Settings → Google → Backup. This shows the date of last saved and the list of applications whose data was saved. If you used Google’s standard Messages app, which is often preinstalled on global versions of MIUI, then the probability of saving your correspondence history in Google Drive is very high.
The recovery process from Google Backup usually requires the device to be reset to factory settings. When you initially set up the phone after the reset, the system will ask if you want to restore data from the backup. By choosing the right backup by date, you will return not only the settings and contacts, but also the history of the SMS. This is a radical method, but it is often the only way to return data if the Mi cloud is silent.
- 📱 Make sure your phone uses the same Google account that you made a copy of.
- 📅 Pay attention to the date of creation of the backup copy – it must be before the moment of deletion of messages.
- 🔄 Recovery from Google Drive can take a lot of time depending on the amount of data.
Local backup of MIUI
The third option, specific to the shell MIUI, And what this is doing is creating on-premises backups, and unlike cloud services, this method stores a complete copy of the system, including messages, directly into the memory of the phone or into the memory of the phone. SD-Redmi 9 users often neglect this feature, not realizing its value until the moment of data loss. The good thing about local backup is that it doesn't depend on Internet speed or free space in the cloud.
You can find previously created copies by going to Settings → About Phone → Backup and Restore → Mobile Device. If you have previously performed a data retention procedure, the list will show the available restore points with the date and size. Select the desired date, tick the "SMS" and start the recovery process. The phone may require a reboot to complete the operation.
Where are the local backups physically stored?
It's worth noting that local copy recovery will replace the current data on the phone with the data that was created at the backup. All messages received after the copy creation date will be lost if they are not previously saved separately, so this method is better used when other methods have not worked, and the necessary information is guaranteed to be in the archive.
Use of specialized software for PC
When embedded methods fail, heavy artillery, a specialized data recovery software, comes into play, programs like Dr.Fone, Tenorshare UltData, or DiskDigger scan the device's internal memory for residual files, and they work by searching for records in the mmssms.db database that are marked as deleted but not yet overwritten with the new code.
To work with such programs on Redmi 9 you will need to enable debugging mode on the Internet. USB. This is done in the hidden menu "Developers." To activate it, go to Settings. → About the phone and quickly press 7 times on the item "Version" MIUI". After the message "You became a developer" go to the Advanced settings → For developers and activate the debugging switch USB.
| Programme | Type of scan | The need for a Root | Efficiency |
|---|---|---|---|
| Dr.Fone | Deep. | Often required | Tall. |
| DiskDigger | Superficial/Deep | SMS needs a Root. | Medium |
| UltData | Analysis of the database | Depends on the Android version | Tall. |
| GT Recovery | Memory scanning | I'll be sure. | Medium |
The recovery process usually looks like this: you connect the phone to your computer through the original cable, run the program on your PC and initiate a scan. The program will try to gain access rights to system partitions. If the phone does not have Root rights, deep scanning may not be available, and the program will find only what is visible in the normal file system. However, the attempt is worth it, especially if the data is critical.
☑️ Preparation for the use of recovery software
Recovery through Communications Operators
Many users forget that mobile operators (MTS, Beeline, Megafon, Tele2) store detailed information about incoming and outgoing calls and SMS. Of course, operators do not usually store text messages for privacy and legislation reasons, but metadata (time, sender number, delivery status) is often available in their personal account.
To get the details, you need to log into your operator's personal account or use a proprietary application. In the "Detailed expenses" or "Connection history" section, you can order a report for the desired period. Some operators allow you to upload this data in Excel or PDF format. Although this will not return the text of the message, this will help identify the number from which the important notification came and contact the sender again.
⚠️ Note: Communications providers do not store text SMS-Any service that promises to recover text from the operator's database for money is likely to be fraudulent.
In some corporate rates or with the connected service "Parental Control", the message history may be stored for a longer period and be available to the main subscriber. Check the terms of your tariff plan or contact the operator's support team to clarify the possibilities of archiving data specifically for your number.
Prevention of data loss and work with Root rights
To avoid the problem of "how to recover deleted messages" in the future, you need to establish a regular backup process, the most reliable way is to combine cloud synchronization Mi Cloud and periodic creation of local copies on the computer, automating these processes will take a couple of minutes of setting up, but save hours of nerves at a critical moment.
For advanced users, there is a method for obtaining superuser rights (Root). Having Root access on Redmi 9 opens up the possibility for applications like SMS Backup & Restore that can make full copies of the database of messages in real time and send them to Google Drive or email. However, obtaining Root rights on Xiaomi devices requires unlocking the bootloader, which leads to a complete data reset and temporary blocking of some security features (for example, banking applications).
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Having an up-to-date backup is the only guaranteed way to recover data, and relying on a “miracle program” without a backup is only justified in 30% of cases.
If you decide to unlock the bootloader for full control of the file system, be aware of the risks.The procedure is officially supported by Xiaomi, but requires waiting (3 to 7 days) and having a Mi Account with a phone number tied. Once unlocked, you can use powerful file table recovery tools such as TestDisk or PhotoRec (via ADB), which work at the memory sector level.