Smartphone owners Oppo sooner or later face an annoying problem: the device starts to work slower, applications take longer to load, and notifications about lack of space appear more and more often. This is a natural process of exploitation internal storagewhich over time is filled with temporary files, application caches and pictures forgotten in the gallery. The issue is especially acute for models with a small amount of built-in memory, where every megabyte counts.
The system ColorOSinstalled on all modern phones of this brand offers powerful built-in tools for servicing the device. However, many users do not know how to use them correctly or ignore them, preferring third-party software, which often only worsens the situation. In this article we will analyze in detail how to clear the memory on Android Oppousing only standard functions and proven methods to return your smartphone to its former speed without the risk of losing important data.
Before taking radical measures like resetting the settings, you should try a comprehensive cleaning that will affect everything main sources of "garbage". A competent approach will free up several gigabytes of space and extend the life of your gadget. Let's start with the simplest and most effective method, available directly from the main menu.
Using the built-in Phone Manager
The first and most logical step is to turn to the system utility, which the engineers Oppo preinstalled specifically for such cases. The application Phone Manager (or “Phone Manager”) scans the device for temporary files, remnants of uninstalled apps and advertising cache. You can launch it through the shield-shaped icon on the desktop or by finding it in the settings menu.
After launch, click the large “Cleaning” or “Scan” button so that the system analyzes the contents of the storage. The algorithm will automatically identify files that can be safely deleted without disrupting the operation of the operating system. Typically this includes thumbnail thumbnails, error logs and temporary browser data.
- 🧹 Application cache - temporary data that speeds up the launch of apps, but takes up a lot of space.
- 🗑️ Residual files - folders and documents left after uninstalling games and utilities.
- 📦 Installation packages are old APK files that are no longer needed after installing the software.
- 📰 Advertising junk - hidden files downloaded by free applications for displaying banners.
⚠️ Attention: When using the “Deep Cleaning” function, carefully look at which files you tick. Sometimes the list includes important documents from the folder
Downloadthat you downloaded recently.
After the scan is completed, the system will offer to clear the found garbage with one click. This action is safe and does not require a reboot. However, it is worth remembering that this method frees up space only temporarily: the cache will begin to accumulate again as you actively use the smartphone. For a more lasting result, you need to switch to manual data sorting.
Run the built-in Phone Manager scanner at least once a week to prevent the memory from becoming critically filled with small junk.
Manually clearing the cache and application data
The main consumers of free space are usually social networks and instant messengers. Applications like Telegram, Viber or WhatsAppsave every photo and video you view into their local database. Over time, these storages can grow to tens of gigabytes, quietly eating up all available memory.
To solve this problem, you need to go into the settings of a specific application. Go to menu Settings → Applications → Manage applications and select the desired service from the list. Inside you will find the “Memory Usage” section, where you can see details on the cache and user data.
Click the "Clear cache" button to delete temporary files. This action will not affect your correspondence, logins or passwords. However, the “Clear data” button will reset the application to its factory state, deleting all message history and login settings, so use it with extreme caution and only if you plan to completely reinstall the software.
For instant messengers, it is better to use the built-in cleaning tools that are located inside the applications themselves. For example, in Telegram there is a section Settings → Data and memory → Memory usagewhere you can configure automatic cache deletion or clear it manually up to the day. This is much safer than doing it through the Android system settings.
Storage analysis and removal of duplicates
Modern versions of the shell ColorOS equipped with an advanced storage analyzer that visualizes disk busy. This feature allows you to understand what exactly is taking up space: photos, videos, audio files or system data. Often, users find that half of the memory is taken up by duplicate photos or unsuccessful shots taken in bursts.
In the “Files” section or through the “File Manager” application, you can sort data by size. Find large video files that you haven't watched for a long time, or forgotten archives. Deleting one long video in resolution 4K can instantly free up several gigabytes, which is equivalent to clearing hundreds of small text documents.
| File type | Medium size | Recommendation |
|---|---|---|
| 4K Video (1 min) | ~350 MB | Transfer to PC or cloud |
| Photo (RAW) | ~25 MB | Keep only the best frames |
| Offline maps | ~500 MB | Delete unnecessary regions |
| Streaming cache | Variable | Clear regularly in the application |
Also pay attention to the folder DCIM/.thumbnails. It stores thumbnails of all your photos. If you have thousands of pictures in your gallery, this hidden folder can weigh several gigabytes. It can be safely cleared through the file manager with the display of hidden files, but the system will create it again over time.
How to find hidden large files?
Turn on the display of hidden files in the file manager settings (usually three dots in the corner of the menu) and sort all files by size. Often you can find forgotten game files in the root directory or Android/obb folder.
Transferring data to a memory card and to the cloud
If the internal memory of the smartphone is physically limited, the best solution would be to change the data storage strategy. Many models Oppo support the installation of memory cards of microSDformat. This is an ideal option for storing media files: photos, music and movies that do not require the high read speed of an internal drive.
To transfer files, insert the card into the slot and in the storage settings, select it as the default recording location for the camera. Existing files can be moved through the file manager by simply cutting them from the internal memory and pasting them into the card directory. This will instantly free up valuable space for installing new applications.
⚠️ Attention: Do not try to transfer the applications themselves to the memory card through the developer settings if your model does not officially support this feature. This can lead to unstable operation of apps and loss of data when the card is removed.
An alternative and more modern solution is to use cloud services. Google Photos, Yandex.Disk or proprietary cloud Oppo Cloud allow you to automatically upload pictures to the Internet and delete their local copies. The “Free up space” function in Google Photos does this automatically, leaving only thumbnails on the device for viewing.
Using cloud storage is the most reliable way to save data when your phone breaks down and free up gigabytes of internal memory without purchasing additional accessories.
Removing unused applications and widgets
Often we install “one-time” games or useful utilities that we stop using after a week. Such apps not only take up space, but can also run in the background, consuming RAM and battery power. Regular audit of installed software is an important part of maintaining the health of your smartphone.
Go to settings and open the list of all applications. Sort them by date of last use or by size. Ruthlessly delete everything you haven't used in the last month. Pay special attention to games, since their cache and resources often weigh more than the operating system itself.
☑️ Application audit
In addition to the applications themselves, their widgets on the desktop take up space. Although they don't store much data, active weather, news, or currency widgets are constantly updated and may create small cache files. Removing unnecessary widgets will relieve the processor a little and simplify the interface.
Resetting settings as a last resort
If none of the above methods helped, and the phone still reports a critical lack of space, the problem may lie in deep system errors or file system fragmentation. In this case, the only effective solution is a full reset to factory settings (Hard Reset).
This procedure completely erases all data from the internal storage, returning the phone to the “as from the store” state. Before performing this operation, it is critical to make a complete backup copy of contacts, photos and documents, since it will be impossible to restore them after a reset without a backup.
Settings → Additional settings → Restore and reset → Reset dataAfter confirming the action, the phone will reboot and begin the cleaning process, which can take from 5 to 15 minutes. Upon completion, you will receive a clean system with the maximum amount of free memory. This is a radical, but often the most effective way to revive an old smartphone.
⚠️ Attention: Make sure that the battery charge is at least 50% before starting. resetting. Interrupting the process by turning off the phone can damage the bootloader and turn the device into a “brick.”
What to do if the phone does not turn on after resetting?
If after resetting the settings the device is stuck on the logo, try a forced reboot. holding down the power and volume up buttons for 10-15 seconds. If this does not help, you will need to flash it through the computer.
Frequently asked questions (FAQ)
Why does the memory fill up immediately after cleaning?
This is normal system behavior. Applications immediately begin to create new temporary files and cache for their work. system processes can reserve space for future updates. If the space disappears too quickly (gigabytes per hour), check the phone for viruses or hidden miners.
Is it possible to delete the Android folder on an Oppo phone?
It is strictly not recommended to delete the entire folder Android Everything is stored inside it. installed applications. Deleting this folder will reset all apps, losing progress in games and settings. You can only delete specific subfolders inside Android/obb or Android/datathat relate to already deleted games.
Does full memory affect Internet speed?
Directly - no, but indirectly - yes. If there is a critical lack of space, the browser cannot cache pages effectively, and the system may slow down when processing network requests, creating the illusion of a slow Internet. Freeing up 10-15% of memory usually stabilizes the network.
How to clear the DNS cache on Android Oppo?
The easiest way is to turn Airplane Mode on and off. For deeper cleaning, you can go to the settings of the Chrome application (or another browser) and clear the cache there, or use the command through ADB if you have developer rights, but for an ordinary user, rebooting the router and phone is enough.
Is it safe to use apps like Clean Master?
Modern versions of Android, including ColorOS, have built-in optimization mechanisms that work more efficiently than third-party “cleaners.” Third-party applications themselves often become a source of advertising and intrusive notifications, consuming resources that should supposedly be saved.