Overflowing message memory is one of the most common causes of smartphone slowdowns, especially on budget models like Redmi and Xiaomi. When the SMS database grows to thousands of records, the standard Messages app starts to open for a long time and finding the right information turns into torture. Device owners often wonder how to quickly and safely clear their correspondence history without deleting important confirmation codes or business contacts.
In this article, we will take a look at all the cleaning methods available, from the standard MIUI functions to the use of third-party software, how to delete a single correspondence, how to select multiple dialogs to delete, and whether to use automatic cleaning tools, and we will also discuss the topic of recovering accidentally deleted messages and explain why simple deletion does not always free up disk space.
Many users don’t realize that older attachment MMS can take up gigabytes of space, stealthily “eating” the internal memory of the device. Understanding the structure of message storage in Android will help you manage data efficiently and keep your Redmi fast at a high level.
Manual removal through a standard application
The most obvious and safest way to clean up history is to use the built-in Messages app, which is a logical process in the MIUI shell, although it requires several actions to be deleted, and users usually delete messages one at a time, which is extremely inefficient when you need to clear hundreds of dialogs.
To start, open the app and find the dialog you want, and if you want to delete all the communications with a particular contact, just hold your finger on the message icon in the shared list, and the system goes to the highlight mode, where checkboxes appear next to each dialog, which allows you to select multiple contacts to clean.
It's important to understand that when you delete a dialogue, you erase all the messages inside it, and you can't recover them with standard system tools, so you should carefully check the contents of the selected conversations for important codes from banks or delivery services before you conduct a mass cleanup.
Once you've selected the dialogs you want, the toolbar will appear at the bottom of the screen, click on the basket icon, the system will ask you to confirm the action, because the operation is irreversible, and once confirmed, the selected message chains will disappear from the list.
Use of the “Cleanup” function in the Security application
Xiaomi and Redmi have a powerful system app called “Security” that can find and remove garbage, including old messages, and it’s one of the most effective ways to quickly make room, as the system analyzes the volume of data.
Launch the Security app and select Clean up. The system will scan the device and suggest removing temporary files, cache and, importantly for us, old SMS. Often this tool shows the amount of memory occupied by messages, which surprises many users.
⚠️ Warning: Auto-cleaning can delete messages without the ability to select specific dialogs. Be careful if important notifications are lost in the mass.
The cleaning section often has a category called "Messages" or "SMS," and if you click on it, you'll see a list of dialogs sorted by size or date, and you can only pick the ones that occupy the most space, usually pictures or voice conversations.
- 📱 Open the Security app on your desktop.
- 🧹 Click on the “Clean up” or “Remove garbage” button».
- 🔍 Wait for the scan to finish and find the section. SMS.
- ✅ Tick unneeded dialogues and click “Delete».
📊 How often do you clean your phone’s text message?
Once a week.
Once a month
Only when memory ends
Never clean.
The advantage of this method is that it allows you to see the weight of each dialogue, and it often turns out that 90% of the space is taken by correspondence with one service that sends out heavy promotional mailings, and by removing this particular dialogue, you solve the memory problem.
Mass allocation and dialogue management
Not everyone knows that the standard messaging app has hidden options for working with large lists. If you need to delete all messages except a select few, you can use the selection invert or date sampling feature.
In some versions of MIUI, if you press a message long enough, a menu with the option "Select All" appears at the top of the screen, which instantly tags all the dialogues in the list, then you can manually tick off the 3-4 contacts you want to save and delete the rest.
This approach is especially useful when preparing a smartphone for sale or transfer to another user. Complete cleaning of the history of correspondence is an important step in protecting personal information. Be sure to also check the Spam and Locked folder, as there is a lot of excess garbage accumulated there.
Where do deleted messages go?
Once deleted, messages are tagged in the database as free space, but can physically remain on the disk until the system overwrites this sector with new data. That is why there are programs to restore data.> For more subtle configuration, you can use an in-app search. Type the word "code", "bank" or the sender's name to find and save the desired messages, and then delete everything else through the highlight menu. This takes longer, but guarantees the safety of important information. Deleting MMS and attachments to free memory Multimedia messages deserve special attention. Normal text takes up negligible space, but the file size of the MMS can take up several types of audio filters. Clicking on the contact avatar or opening the dialogue settings, you can see the "Attachments" or "Media" section, and you can only delete the pictures from there, leaving the text part of the correspondence if it is important. Data type Approximate size Impact on memory Text Recommendation SMS less 1 The minimum CB can not be removed MMS (photo) 200 CBB - 2 High Delete or Save to the Cloud MMS (audio) 500 CBB - 5 MB Critical Be sure to remove stickers/emojis 10-50 The user's discretion is that the removal MMS It automatically cleans the gallery. It's not. If you saved the picture from the message to the gallery, it will stay there even after you delete the dialog. You'll have to clean the gallery separately using the Save from Messages album. Use the built-in memory analyzer. Go to Settings. → Memory and see how much space the Messages app takes up». If the volume exceeds 500 MB, this is a clear signal that there is a lot of “heavy” garbage in the correspondence. Third-party applications for cleaning SMS If standard tools are not enough, specialized applications from Google Play come to the rescue. Programs like SMS Backup & Restore or Clean Master offer advanced functionality for managing messages, including automatic deletion on schedule. However, installing such programs requires broad permissions. The application will access all your messages, including confirmation codes and personal correspondence. Trust only trusted developers with millions of installations and high ratings. A popular method is the use of double applications that allow you to delete SMS before you. You can create a backup copy of all correspondence in the XML-save it to your computer or the cloud, and then remove it from your phone without fear. 📥 Download the backup application SMS. 💾 Create a full copy of the message database. ☁️ Save the backup file in a safe place. 🗑️ Use the Remove Everything feature in an app or system. Some cliners have a Smart Cleanup feature that offers to delete messages over a certain period of time, such as those older than 3 months, a useful option to maintain order without risking losing fresh and up-to-date notifications. Frequent questions and data recovery Often users delete messages by mistake or in a hurry, and then catch up.It is important to know that Android does not have a standard "Basket" for the user. SMS, The message is deleted, it disappears from the visible interface instantly. Recovery is possible only if you have a pre-made backup. If you synced messages with a Google account or used a third-party backup app, you can return them by performing a recovery procedure from backup when you log in. ⚠️ Note: Programs that promise to restore remote SMS If you have no backup, 99% of the time are fraudulent or require root rights, which can disrupt your Redmi warranty service.If messages took up a lot of space but no free memory appeared after deleting, try restarting your device. The system must recalculate the file index and free up the space it occupies. Sometimes it requires cleaning the Messages cache through the settings. 💡Regular cleaning SMS Not only frees up memory, but also speeds up the message application, preventing hanging when opening dialogs. To prevent memory from filling up quickly, set up automatic deletion of old messages. In the Messages app settings, find the Message Limit and set a limit of, for example, 1,000 pieces per dialog. Old messages will be deleted automatically. Can you delete all your SMS with one button without third-party software? MIUI There's no direct "Delete All" button for all messages, but you can hold your finger in one dialog, select "Select All" from the menu (three dots or highlight icon), and then press the basket. It takes a couple of seconds. Does texting take up a lot of space on your phone? Conventional text texting takes up a minimum of space. The problem is being created. MMS-Image messages, audio and video, and a large number of dialogues (tens of thousands) that slow down the system's database? Once deleted, messages are marked as free space by the system. They don't move to the cart. Physically, data stays on the disk until new files are overwritten, which theoretically allows you to restore them by special means, but they are not available to the average user. How to set up autodeletion of old messages? Go to the Messages app, click three dots in the corner, select Settings. Find "Restricting Messages" or "Deletion of old messages" and activate it by selecting a limit (for example, 200 messages per contact).