Owners of what was once popular smartphone Samsung Galaxy J7 often encounter intrusive notifications about lack of space. This is a natural process, because the amount of internal memory in this model is limited, and modern applications and multimedia require more and more resources. When the storage is full, the device begins to work slower, errors may occur when installing updates or even when trying to take a photo.
There are many ways to solve this problem, from manually sorting files to using system utilities. Storage & Performance This is not just deleting old photos, it is a comprehensive approach to optimizing the operation of the operating system. In this article, we will look at effective and safe methods for freeing up space that will return your gadget to its previous speed.
Before taking drastic measures such as resetting settings, you should try gentle cleaning methods. They allow you to delete temporary files and cache without affecting your personal data. Android provides built-in tools that are often ignored by users, although their effectiveness is high enough for basic maintenance.
Analyzing storage capacity
The first step should always be diagnosis. You need to understand exactly what exactly is taking up precious gigabytes. The operating system Android has a built-in analyzer that visually shows the distribution of space. Go to the menu Settings → Memoryto see a detailed breakdown by category: applications, images, videos, audio and system files.
It often turns out that the lion's share of space is occupied by messengers such as WhatsApp or Telegram. These applications save all received media files by default. Application cache can also grow to incredible sizes, especially if you actively use social networks or browsers. Understanding memory structure is the key to successful cleaning.
Pay attention to the “Downloads” section. Users often download APK installation files, documents or archives and forget about them. These files can sit for months, taking up space. Removing unnecessary content from the Download folder is the fastest way to get a few hundred megabytes of free space.
Clearing the cache and deleting temporary files
The safest and fastest way to free up space is clearing the cache. Cache is temporary data that applications store to speed up their work. Over time, it accumulates and can take up a significant amount. To clear a specific application, go to Settings → Applications, select the desired app (for example, YouTube or Chrome) and press the button Clear cache.
It is important not to confuse clearing the cache with clearing data. If you click “Clear data”, the application will return to the state immediately after installation, and you will lose logins, passwords and settings inside it. Cache you can also delete without fear of losing important information. This is especially true for a browser where the cache can reach several gigabytes.
⚠️ Attention: Do not use dubious cleaner applications from the Play Market. They often consume resources themselves and show ads instead of actually helping. The built-in tools of the Samsung J7 are quite sufficient.
For global cleaning, you can use the built-in service code or the recovery menu, but the standard path through the settings is usually sufficient. It is also worth checking the folder DCIM/.thumbnails. It stores thumbnails of your photos. If you have thousands of pictures, this folder can weigh a lot. You can delete its contents through the file manager, but it will be created again the next time you open the gallery.
Is it worth deleting the .thumbnails folder?
Yes, you can delete it. This is a thumbnail cache. The system will recreate it when you open the gallery, but you will temporarily free up space. It makes sense to do this if the folder has grown to gigabytes.
Removing and transferring applications
Managing installed apps is a critical step. On Samsung J7 internal memory is often limited to 16 or 32 GB, of which even less is available to the user. It is necessary to regularly review the list of installed applications. Go to Settings → Applications and sort them by size. Delete those that you have not used for several months.
One of the useful features Android on Samsung devices is the ability to transfer applications to a memory card. This does not free up internal memory completely, but allows you to store the “body” of the app on external media. To do this, in the menu of a specific application (if the function is supported by the developer), you need to press the button Move to SD card.
☑️ Revision of applications
Some system applications cannot be deleted using standard methods. However, they can be frozen or disabled, which will prevent them from updating and using resources. In the list of applications, find unnecessary services (for example, Google services or Microsoft applications that you do not need) and click Disable. This will hide them and stop background processes.
| Data type | Where to look | Deletion security | Approximate size |
|---|---|---|---|
| Cache applications | Settings → Applications | Safe | 100 MB - 2 GB |
| Downloads | My files → Downloads | Safe (if not needed) | 500 MB - 5 GB |
| WhatsApp Media | WhatsApp/Media folder | Requires verification | 1 GB - 10 GB+ |
| Deleted photos | Gallery → Trash | Safe | Depends on the user |
Working with multimedia and files
Photos and video are the main consumers of memory on a modern smartphone. The camera Samsung J7 takes good pictures, but they take up space. Check your albums regularly. Pay special attention to video, as a minute of high-resolution recording can weigh more than a hundred photos. Removing duplicates and blurry frames is a great habit.
Use cloud storage services such as Google Photos or Yandex.Disk. Set up automatic uploading of photos to the cloud with the “Free up space” function. This function will delete from the device those pictures that have already been successfully saved to the cloud. This allows you to keep the originals safe without taking up the internal memory of the phone.
It is also worth checking the folder Voice Recorder i Dictaphone. Often there are long but useless entries left there. Audio files can take up significant space if you've ever used a voice recorder for lectures or meetings. Don't forget to empty the trash in your gallery, as deleted photos are stored there for another 30 days.
Use the Files by Google app to find duplicate photos and large files. It automatically finds “junk” that can be safely removed with one click.
Using a microSD memory card
For owners Samsung J7 a memory card is a lifesaver. The device supports cards up to 256GB (and often larger). Correctly setting up an SD card allows you to transfer the bulk of user data to it. Insert the card, then go to Settings → Storage and select formatting the card as a portable drive (or internal, if the system suggests, but for the J7, portable is better).
After installing the card, you need to change the camera and voice recorder settings. Go to the Camera application, open the settings (gear) and turn on the option Save to SD card. Now all new photos and videos will be written directly to external storage, bypassing internal memory. This is critical to prevent overflow.
Similar settings are available in music players and some navigators (for example, Yandex.Navigator or 2GIS), which allow you to download maps offline. Specify the path to the SD card in the settings of these applications. This will free up gigabytes of internal memory, which are usually used for city maps.
⚠️ Attention: When formatting a memory card, all data on it will be destroyed. Be sure to back up important files on your computer before formatting through the phone menu.
Radical methods and factory reset
If software cleaning does not help and the memory fills up on its own, the system may have crashed or deep software debris has accumulated. In this case, resetting to factory settings helps. This will return the phone to the "as-store" state. Before doing this, be sure to back up your contacts and important data, as everything will be deleted.
To perform a reset, go to Settings → General settings → Reset → Reset data. The phone will reboot and begin the cleaning process. This takes time, usually from 5 to 15 minutes. After turning on, you will receive a clean system without unnecessary applications and files.
Factory Reset is the most effective means of dealing with system garbage and errors, but requires mandatory data backup.
There is also a Recovery mode, accessible through a combination of buttons when turned on. There you can select the item Wipe cache partition. This will clear the system cache without affecting the user's personal files. This is a gentler alternative to a hard reset that's worth trying before taking drastic measures.
What to do if the memory fills up immediately after a reset?
If the memory fills up on its own immediately after a reset, the problem could be a specific app you installed or a system glitch. Try booting into safe mode (hold down the power button, then hold “Shut down” on the screen for a long time). If the memory is free in safe mode, a third-party application is to blame.
Is it possible to delete Samsung system applications?
You cannot delete system applications (Samsung Apps, Google Services) without root access. Trying to disable them may result in unstable operation of the phone. Delete only what you are sure of, or use ADB commands for experienced users.
Why is the memory busy again after clearing it?
The operating system Android constantly creates temporary files for work. Messengers and social networks also cache new images. This is fine. Regular, at least once a month, manual clearing of the cache will help keep the situation under control.