Smartphones series Galaxy J7 from the company Samsung have earned popularity due to the balance of price and functionality, but owners of these devices often face a lack of built-in storage. Limited internal memory becomes a critical factor when the system begins to issue notifications about low free space. This leads to a slower interface, the inability to install application updates, and problems when taking photos or videos.
Solving the problem requires a comprehensive approach, since simply deleting a couple of photos rarely has a long-term effect. It is necessary to understand the data storage architecture of the shell One UI or earlier versions TouchWizto manage space wisely. In this article, we will look at proven methods for freeing up gigabytes that will help restore your device to its former speed and responsiveness without losing important data.
Analyzing storage fullness and searching for hidden volumes
Before taking radical measures, it is worth conducting a detailed diagnosis of what exactly your device is clogged with. Built-in tools Android allow you to visualize the distribution of files, which often reveals unexpected space consumers. Go to the menu Settings → Device maintenance → Memoryto see a detailed occupancy chart.
Often users do not suspect that a significant part of the space is occupied not by the applications themselves, but by their cached data and the remains of deleted apps. The system analyzer will show the categories: “Applications”, “Images”, “Video”, “Audio” and “Documents”. Cached data can grow to several gigabytes, especially if you actively use social networks or instant messengers.
Pay attention to folder Download (Downloads). Many users have been downloading installation files, presentations or archives for years, forgetting about them. These files are no longer needed after the apps are installed, but continue to take up valuable space. Checking this directory regularly should become a habit. APK, presentations or archives, forgetting about them. These files are no longer needed after the apps are installed, but continue to take up valuable space. Checking this directory regularly should become a habit.
⚠️ Attention: When deleting files through the system manager, be careful with folders containing the word
Androidordata. Deleting the contents of these directories may result in resetting installed apps or losing progress in games.
Clearing the application cache and system garbage
The fastest way to temporarily free up space is to clear the cache. Cache are temporary files that applications create to speed up their work. Over time, these files accumulate and cease to be useful, turning into digital trash. To clean up a specific heavy application, go to Settings → Applications, select the desired app (for example, YouTube or Instagram) and press the button Storage.
In the menu that opens, you will see two buttons: “Clear data” and “Clear cache”. It is important to understand the difference between them. Clearing the cache is safe and only deletes temporary files, while clearing data resets the app to its factory state, removing logins and settings. Use the button Clear cache for all resource-intensive apps.
Also, smartphones Samsung have a built-in optimization function. In the Device maintenance section, click the Optimizebutton. The system will automatically analyze background processes, close unnecessary services and offer to delete unused files. It is recommended to perform this action regularly, for example, once a week.
To quickly clear the cache of all applications at once, you can use Recovery Mode by selecting Wipe Cache Partition. This will not delete your personal data, but will clear the system temporary buffer.
Some users resort to third-party cleaning utilities such as CCleaner or Files by Google. They can find duplicate files and remnants of deleted apps that the standard manager does not see. However, use them with caution, providing only the necessary permissions.
Transferring applications and media files to a microSD memory card
The model Samsung Galaxy J7 supports the installation of memory cards, which is a salvation for owners of versions with a small amount of built-in memory. Transferring data to an external drive allows you to unload the system partition. First, check whether your applications support the transfer feature. Go to Settings → Applications, select the app and see if the button is active Move to SD card.
Unfortunately, many modern applications, especially system services Google and popular messengers do not allow you to completely move yourself to external media for security and performance reasons. However, some data can still be downloaded. For photos and videos, set the camera to save pictures directly to the memory card. In the application Camera go to the settings (gear icon) and select Save location → Memory card.
Files that are already in the internal memory can be moved manually through the file manager My files. Find the folders DCIM, Pictures or Download, highlight the desired items and select the option Move, specifying your SD card as the target. This process may take time depending on the amount of data.
| Data type | Can I transfer the whole thing? | Recommended method | Risks |
|---|---|---|---|
| Photo and Video | Yes | Camera settings / File manager | Data loss if the card is damaged |
| Music and Audiobooks | Yes | Moving folders manually | Player failure |
| Applications (Games) | Partially | Move button in settings | Slower loading levels |
| Documents | Yes | File manager | No access without cards |
⚠️ Attention: Before transferring large amounts of data, make sure that your memory card has a speed class of at least Class 10. Slow cards can cause the camera to freeze when recording video in high resolution.
Optimization of messengers: WhatsApp and Telegram
Messengers are the main ones memory hogs on modern smartphones. WhatsApp i Telegram automatically save all received photos, videos and voice messages to internal memory. Without configuration, these folders can take up tens of gigabytes over a year of use. In WhatsApp go to Settings → Data and storage and disable autosaving of media in the gallery.
To clear already accumulated garbage in WhatsApp there is Built-in storage management feature. Go to Settings → Data and storage → Storage management. Here you will see a list of chats sorted by the amount of space they occupy. You can view each chat and delete heavy video files or sent documents without deleting the entire correspondence.
In the case of Telegram the situation is simpler, since this messenger is cloud-based. You can clear the application cache without losing access to your message history. Go to Settings → Data and memory → Memory usage and click Clear cache. It is also recommended to set an automatic timer for clearing the cache, for example, once every 3 days, so that the phone does not clog again.
☑️ Optimization of instant messengers
Don't forget to check the folder WhatsApp/Media/.Statuses. The statuses of the contacts you have viewed are saved here. These files are often duplicated and are not needed by the user after viewing. They can be safely deleted through the file manager, having first enabled the display of hidden files.
Using cloud services to unload the device
If physical cleaning is not enough, it is advisable to transfer the data archive to the “cloud”. The service Google Photos is preinstalled on all smartphones Samsung and offers a convenient space-freeing function. Once all your pictures are uploaded to the Google server, you can click on the profile icon and select the option Free up space. The application will delete from the phone those photos and videos that are already safely stored in the cloud.
An alternative is a proprietary service Samsung Cloud (or its integration with OneDrive in new software versions). It allows you to sync contacts, calendar, notes and gallery. Setting up automatic uploading allows you to forget about manually copying files to your computer. However, it is worth considering that free space in the clouds is limited, and you will have to pay for additional space.
For documents and rare files, you can use services like Yandex.Disk or Dropbox. After uploading the file to the cloud, delete the original from your phone. If necessary, you can always download it back through the mobile application or browser. This turns your phone into a terminal for accessing data, and not the only place for storing it.
What to do if there is no Internet access to upload to the cloud?
If you do not have Wi-Fi and mobile traffic is limited, connect your phone to your computer via a USB cable. Using File Transfer mode, copy the DCIM and Pictures folders to your computer's hard drive, and then delete them from your phone. This is the fastest way to free up gigabytes without the Internet.
It is important to regularly check the synchronization status. Sometimes, due to network failure, files may not be downloaded and the “free up space” feature will not be available. Make sure that the cloud icon next to the photos in the gallery has a “loaded” status before deleting the originals.
Radical measures: Resetting settings and removing system updates
When software methods do not help, and the phone continues to signal about lack of space, the last resort remains - a full reset to factory settings. This procedure completely erases all user data, applications and settings, returning the phone to a "store like" state. Before doing this, be sure to back up your contacts and important files.
To perform a reset, go to Settings → General settings → Reset → Reset data. Confirm the action by entering your PIN or pattern. The process will take a few minutes, after which the phone will reboot. You will receive a clean system with the maximum amount of memory available. This also eliminates many software errors and “glitches” that have accumulated during operation.
Another nuance characteristic of devices Samsung is partition bloat System after major updates Android. Sometimes old firmware files are not removed correctly. In such cases, clearing the cache partition through the Recovery menu helps. Turn off the phone, then hold down the button combination Volume up + Power + Home (for models with a button) or Volume up + Power (for new versions without a button). In the menu that appears, select Wipe Cache Partition.
⚠️ Attention: In the Recovery menu, be extremely careful when navigating. Selecting item
Wipe Data/Factory Resetinstead ofWipe Cache Partitionwill instantly delete all your data without the possibility of recovery.
A full reset is not a sign of a breakdown, but an effective way to “rejuvenate” the system and return all available memory if other methods have been exhausted.
After resetting, install only the necessary applications. We often keep apps “just in case” that we don’t use for months. The principle of minimalism in installing software is the key to free memory on a device with a small built-in storage.
Frequently asked questions (FAQ)
Why is the memory not freed up after deleting applications?
When you delete an application, its main app is erased, but folders with data, cache and downloaded files (for example, c Android/data) can remain on the disk. You need to manually check the file manager and delete the remains of the folders with the name of the deleted app.
Is it possible to make a memory card the main memory on a Samsung J7?
In the standard shell Samsung the Adoptable Storage function (memory merging) is usually disabled by the manufacturer. You can only use the card as portable storage. Third-party methods for enabling this function via ADB are possible, but not recommended due to the risk of data loss when removing the card.
What is the .thumbnails folder and can it be deleted?
Folder .thumbnails in a directory DCIM contains thumbnails of your photos for quick display in the gallery. It can grow to enormous sizes. It can be safely deleted, the system will create it again the next time you open the gallery, but this will take time and processor resources.
How to disable automatic updating of applications so that they do not take up space?
Go to Google Play Market, click on the profile icon and select Settings → Network preferred in the section "Auto-update applications." Select “Never” or “Only via Wi-Fi” so that updates are not downloaded in the background without your knowledge.
Does full memory affect the speed of the phone?
Yes, critically. When free space is less than 10-15% of the total volume, the speed of writing and reading data on flash memory drops. This leads to interface sluggishness, long application launch times, and camera freezing. Maintaining free space is mandatory for comfortable work.