Smartphones Lenovo have long gained popularity due to their optimal price-quality ratio. However, over time, any device based on Android begins to work slower, and notifications about lack of space appear more and more often. This is an inevitable process of accumulation of digital garbage that slows down the system.
Owners often wonder why the phone freezes when there are free gigabytes. It's not just the storage capacity, but also how the system manages files. In this article, we will analyze specific steps for series models Legion, K12 Pro and budget lines in order to return the former speed.
Analysis of storage fullness
Before deleting anything blindly, you need to understand what exactly is taking up space. The system Android provides built-in tools for data visualization. Go to the settings and find the section responsible for memory.
The path may differ on different firmware versions. Usually this is a menu Settings → Storage or Device → Storage. Here you will see a color chart showing the distribution of space between applications, images, videos and system files.
Pay attention to the “Other” or “Other” category. Often this is where gigabytes of forgotten downloads and messenger caches are hidden. If this partition takes up more than 20% of the total volume, immediate cleaning is required.
Clearing cache and temporary files
The easiest way to quickly free up space is to delete the application cache. Cache is temporary data that apps save to speed up loading of content. Over time, these files become outdated, but continue to take up precious megabytes.
You can clear the cache for each application separately through the app management menu. However, there is a faster method for the entire system. Go to Settings → Applications → All applications.
Select heavy apps such as browsers, social networks or video players. Click on the item Storage inside the application card, and then select the button Clear cache. It is important not to confuse this button with the “Clear data” function, since the latter will delete your logins and settings.
- 🗑️ The browser cache often grows to several hundred megabytes after watching a video.
- 📱 Social networks (VK, Instagram) store thumbnails of photos indefinitely until you delete them.
- ⚡ Random access memory (RAM) and read-only memory (ROM) are different things, clearing the cache affects ROM specifically.
Use the built-in The Phone Master app comes pre-installed on Lenovo. It automatically finds and removes advertising junk and residual files.
Gallery and media file management
Photos and videos are the main consumers of space on any smartphone. Modern cameras shoot in high definition, and one minute video can weigh more than a hundred documents. Regular revision of media files is mandatory.
Use the “Recently Deleted” function in the gallery. Often, users delete unsuccessful pictures, but forget to empty the trash, where they are stored for another 30 days. Go to the album Recently deleted and click Clear all.
Also check the folder Download (Downloads). Files from the Internet, attachments from mail, and documents are automatically saved there. You won't need many of them anymore.
⚠️ Attention: Before mass deleting photos, make sure that important pictures are saved in cloud storage or on your computer. Restoring deleted files without a backup copy is almost impossible.
| File type | Average size | Recommendation |
|---|---|---|
| Photo (JPEG) | 3-5 MB | Move to the cloud |
| Video (1080p, 1 min) | 60-100 MB | Remove duplicates |
| Audio (MP3) | 3-10 MB | Check playlists |
| RAW pictures | 20-30 MB | Keep only the best |
Optimization messengers
Messengers like Telegram i WhatsApp work like black holes for memory. They automatically download all sent pictures, videos and voice messages, saving them in local storage. Without configuration, these applications can take up tens of gigabytes.
In settings Telegram find the section Data and memory → Memory usage. Here you can set up automatic cache clearing. Set a value such as "3 days" or "1 week". The application will automatically delete old media files, loading them again only when necessary.
For WhatsApp the procedure is similar: go to Settings → Data and storage → Storage management. The system will show the chats that take up the most space. You can selectively delete large attachments from specific conversations without losing your conversation history.
Why do messengers take up so much space?
Messengers duplicate files. If the same video is sent to 10 chats, it can be saved in memory several times if the hash uniqueization option is not enabled, which is rare in mobile versions.
Transferring applications to a memory card
Many models Lenovo support installation of memory cards microSD. This is a great way to free up internal storage. However, not all applications allow you to transfer yourself to external media.
To check the possibility of transferring, open Settings → Applications. Select the desired app and press Memory. If the button Change is active, you can select a memory card as the installation location.
It is worth considering that the speed of applications from the memory card may be lower than from the internal storage, especially if you are using an old class 4 or 6 card. For games and heavy apps, it is better to leave them in the internal memory.
- 💾 Format the memory card as internal storage (Adoptable Storage), if the phone allows it. This will combine the volumes into one pool.
- 🚀 Use UHS-I or UHS-II cards to minimize speed loss.
- ⚠️ Do not remove the memory card while the phone is on, this may cause data corruption.
⚠️ Attention: When formatting the card as internal storage, all data on it will be destroyed. Be sure to make a backup copy of the files on the card before starting the procedure.
Removing system garbage and duplicates
Over time, files remaining after uninstalling apps, empty folders and duplicate documents accumulate in the system. Searching for them manually is time-consuming and risky. It is better to use specialized utilities.
The application Files by Google or the built-in file manager Lenovo has a duplicate search function. Run a scan and carefully review the files proposed for deletion. The system usually groups identical photos or documents.
It is also worth checking the folder Android/obb i Android/data. Game cache files are stored there. If you delete the game, but these folders remain, they continue to take up space. You can delete them only if the corresponding application has already been uninstalled.
☑️ Complete cleaning checklist
Reset to factory settings
If no methods help and the phone continues to signal that there is not enough space, there may be a problem in the system file table failure. In this case, a radical but effective solution is a full reset.
This procedure will return the smartphone to its out-of-the-box state. All user data, contacts, photos and applications will be deleted. Therefore, it is critical to create a full backup before starting.
To perform a reset, go to Settings → System → Reset settings → Delete all data (reset to factory settings). Confirm the action and wait for the reboot. The process may take from 5 to 15 minutes.
⚠️ Attention: Make sure the battery charge is at least 50% before resetting. Turning off the power during the process can lead to damage to the device (“bricking”).
Regular maintenance (once a month) is more effective than emergency cleaning when the memory is already 99% full.
Is it safe to delete files from the Android folder?
Delete files inside folders Android/data and Android/obb are safe only if you are sure that they belong to already deleted applications. If you delete the folder of an active game or app, it will stop launching or reset its settings. Always check the folder name before deleting.
Why is the memory not freed after cleaning?
Sometimes the system does not immediately update the display of free space. Try rebooting your device. It is also possible that the free space was immediately taken up by system logs or the cache of processes running in the background. This is normal behavior of the Android OS.
Is it possible to remove Lenovo system applications?
You cannot remove system applications (bloatware) using standard means; the “Delete” button will be inactive. This requires superuser rights (Root) or using ADB commands through a computer. Inexperienced users are better off disabling such applications through the menu so as not to disrupt the system.
How to transfer photos to a computer without a cable?
You can use cloud services (Google Photos, Yandex.Disk) or Wi-Fi transfer. Many Lenovo smartphones have a “Transfer Files” function in the USB menu when connected, but for wireless transfer it is most convenient to use the “Send Files” application or the Google Photos web interface.
Does full memory affect the Internet speed?
There is no direct effect on the connection speed, but if there is a critical lack of space, the browser cannot save the page cache. This leads to sites taking longer to load, since the content is downloaded anew each time, rather than taken from fast local memory.