Slow interface operation and constant notifications about lack of space are classic signs of full storage in smartphones Samsung Galaxy. Users often encounter a situation where the device starts to slow down, and there is simply nowhere to save photos, despite the gigabytes in the specifications. The problem lies not only in the amount of internal memory, but also in how the system manages temporary files and the application cache.
To quickly free up space on Android, you need to act comprehensively: from simply deleting unnecessary snapshots to deep clearing the system cache. Modern One UI shells provide built-in tools that cope with this task better than third-party apps, which are often just ad collectors. In this guide, we will look at proven methods that will help restore your smartphone to its former speed without losing important data.
You will learn which folders can be deleted safely, how to transfer media files to a memory card, and why deleting applications does not always free up the required space. The right approach to resource management will allow you to postpone the purchase of a new device to a later date. Let's move on to specific optimization steps.
Using the built-in device optimizer
The first thing the owner needs to do Samsung- this is to use the standard maintenance tool. The company has built into the shell Device Care (Device Care), which automatically analyzes the system state. This service scans the storage for temporary files that are no longer needed by the system, but take up valuable space.
To start the process, go to Settings → Device maintenance → Memory. Here you will see a pie chart that clearly shows the distribution of space between applications, images, videos and system files. Pressing the button Clean now will launch an algorithm for removing junk files that is safe for user data.
However, automatic cleaning often removes only the surface layer of garbage. For deeper work, you need to go to the settings of the “Device Care” application itself and enable the “Automatic removal of unnecessary files” function. This will allow the system to regularly carry out maintenance without your participation, deleting the cache of inactive apps.
⚠️ Attention: The built-in optimizer does not delete your personal photos or documents, but before any mass cleaning it is recommended to create a backup copy of important data in the cloud.
Set up automatic cleaning in the “Automation” section so that the phone itself deletes temporary ones files once a week, when the battery charge exceeds 50%.
Analysis and deletion of application cache
Social networks and instant messengers often become the main consumer of free space. Applications like Telegram, WhatsApp or Instagram save every picture and video you watch in a hidden memory. Over time, this application cache can grow to tens of gigabytes, quietly eating up the phone's resources.
To see the real memory eaters, open Settings → Applications and sort the list by size. You might be surprised to find that a simple calculator or flashlight takes up little space, while a browser or social network takes up several gigabytes. Once you have accessed the information about a specific application, select Storage.
Two buttons are available here: “Clear cache” and “Clear data”. The first removes temporary download files, which is safe and does not reset your logins. The second button completely resets the application to factory settings, deleting all correspondence and authorization. Use it only in extreme cases when the application does not work correctly.
- 📱 Social networks: the cache can take up to 5-10 GB, clear it once a month.
- 🌐 Browsers: history and downloaded files often clog up memory, check the Downloads folder.
- 🎮 Games: The cache of textures and updates can weigh more than the installation application itself.
- 📸 Camera: Previews and thumbnails also accumulate over time.
Gallery and media file management
Media files traditionally occupy the lion's share of internal memory. With the increasing resolution of smartphone cameras, one minute video in 4K can weigh hundreds of megabytes. Regular gallery audit is the most effective way to quickly regain several gigabytes of free space. Samsung Galaxy S And Note, one minute video in 4K can weigh hundreds of megabytes. Regular gallery audits are the most effective way to quickly regain a few gigabytes of free space.
The Gallery application has a convenient function for searching for duplicates and similar images. You should also pay attention to the folder Corrupted Images or “Bad shots”, where the phone automatically moves broken files. Don't forget to check the folder DCIM → .thumbnailswhere the thumbnails are stored; sometimes this hidden file grows to unacceptable sizes.
If you have a memory card microSD, set the camera to save new pictures directly to it. To do this, go to the camera settings and change the storage location option. Old photos can be transferred manually through the file manager My Filesby selecting the desired albums and selecting the “Move” function.
| File type | Average size (example) | Recommendation |
|---|---|---|
| Photo (12 MP) | 3-5 MB | Store in the cloud or on SD |
| Video (Full HD) | 100-200 MB/min | Delete after viewing |
| Video (4K 60fps) | 400-600 MB/min | Transfer to PC immediately |
| Screenshots | 1-3 MB | Regular cleaning |
⚠️ Attention: Formatting the memory card inside the phone will delete all data on it. Make sure you copy important files to your computer before formatting.
Cleaning out your downloads and files folder
The Download (Downloads) folder often turns into a digital dump. This includes APK installation files, PDF documents, pictures saved from the browser, and forgotten archives. Users rarely look here, so gigabytes of useless garbage accumulate for months.
Open the application My files and select the “Downloads” category. Sort files by size to see the heaviest items at a glance. Often here you can find old application update installers that are no longer needed, since the apps have been installed for a long time and are updated via Google Play.
It is also worth checking the folder Bluetoothif you have ever received files using this protocol. Small files may seem harmless, but their cumulative weight can be significant. Deleting old documents and installers is a quick way free up space without the risk of losing personal memories.
☑️ Check the Downloads folder
Use of cloud services and SD cards
If the internal memory is physically small, the only way out is to expand the storage by external means. Smartphones Samsung work perfectly with cloud services such as Google Photos or Yandex.Disk. Set up automatic photo uploading with the Free Up Space feature, which deletes local copies after successful upload to the cloud.
For memory cards, it is important to configure them correctly. Newer versions of Android allow you to format your SD card as internal storage (Adoptable Storage), although Samsung limits this feature on many models. In standard mode, use the card to store media files, transferring folders DCIM, Pictures and Music.
When transferring files, use a file manager so as not to disrupt the application folder structure. Some apps, for example, a voice recorder or a document scanner, allow you to select in their settings the path to save files directly to the SD card. This will prevent the main partition from becoming clogged in the future.
⚠️ Attention: The speed of applications installed on the memory card may be lower than when installed in the internal memory. Use U3 or V30 class cards to record video.
What is Adoptable Storage?
This is an Android feature that allows you to combine internal memory and SD card into a single space. However, on Samsung smartphones it is often blocked by the manufacturer to ensure system stability.
Deleting unused applications and widgets
Many users install applications “just in case” and forget about them. Each such application not only takes up space for the installation file, but also creates its own data directories. Regular audit of installed software is necessary to maintain the cleanliness of the system.
Go to Settings → Applications and look through the list carefully. If you haven't opened a game or utility in the last 3 months, you probably don't need it. Removing such apps not only frees up space, but also reduces the load on the processor and RAM, since background services stop working.
Also check for pre-installed software (bloatware), which often comes with the phone. Some of these applications cannot be completely uninstalled, but they can disable. Disabling hides the application from the menu and stops its processes, which indirectly helps the system work faster.
- 🗑️ Games: the heaviest applications, delete without regret if you do not play.
- 🛒 Stores: leave only one main application store.
- 📺 Streaming services: video cache takes up a lot of space, clean or delete.
- 📂 File managers: often duplicate system functions, leave one.
Regular deletion of unused applications is a better prevention of memory shortage than one-time cache cleaning.
Resetting settings as a last resort
If all of the above methods did not help and the phone continues to report low space, the system may have accumulated critical file system errors. In this case, the only effective solution is a full reset to factory settings. This will return the phone to its “out of the box” state.
Before performing this procedure, it is critical to save all contacts, photos and documents to an external drive or to the cloud. The reset will delete absolutely all user data, including Wi-Fi settings, accounts and installed applications. The process is initiated through the menu Settings → General settings → Reset → Data reset.
After resetting, do not restore all applications at once from a backup. Install only the essentials and watch the memory fill up over the course of a week. Often the reason for fast filling lies in one specific application, which, upon automatic recovery, will again begin to generate garbage.
⚠️ Attention: Make sure the battery level is above 50% before starting the reset. Interrupting the process by turning off the phone can damage the software.
Why does the memory quickly fill up again after a reset?
Most often this happens due to automatic synchronization of instant messengers, which immediately begin downloading correspondence history and media files for all years. Disable automatic media loading in chat settings.
Frequently asked questions (FAQ)
Why does the memory fill up immediately after clearing?
This happens due to background processes and data caching by applications. Messengers and browsers begin to actively download content as soon as free space becomes available. It is recommended to configure restrictions on auto-loading media in the settings of the applications themselves.
Is it safe to delete the Android folder on a Samsung phone?
No, you cannot delete the entire folder Android as it stores the data of all installed applications. Deleting will reset app settings and loss of progress in games. You can clean only the subfolder cache inside it, but it is better to do this through application settings.
How to transfer applications to a memory card on Samsung?
On modern versions of Android and the One UI shell, the ability to transfer applications to an SD card is often absent or limited. This feature depends on the specific application developer. You can check the possibility in the section Settings → Applications → [Select application] → Memory.
What is a .thumbnails file and can it be deleted?
This is a photo thumbnail file that speeds up the display of the gallery. It can grow to enormous sizes. It can be deleted through the file manager by turning on the display of hidden files, but the system will create it again over time. To prevent growth, you can create an empty file with the same name and disable writing to it.
Does full memory affect the speed of the phone?
Yes, it has a critical effect. When free space runs out, the system has no place to create temporary files for applications and updates to run. This leads to severe slowdowns, app crashes and the inability to make calls or receive messages.