Manually clearing the cache on Honor 9: from applications to the system

Smartphone Honor 9, despite its advanced age, continues to be a reliable device for many users thanks to its high-quality build and optimized EMUI shell. However, over time, any Android operating system accumulates temporary files that can slow down the interface and take up precious space in the internal memory. Understanding how to clear the cache on Android Honor 9 manuallybecomes a critical skill for maintaining the gadget's performance at a high level without the need to reset to factory settings.

Many users mistakenly believe that deleting applications or transferring photos to a memory card solves all problems with brakes, ignoring hidden data accumulations. In fact, it is the cache that often causes unstable operation of specific apps or even the entire system as a whole. In this article, we will analyze in detail all available cleaning methods, from simple actions in the settings menu to advanced manipulations through recovery mode.

What is the cache and why it needs to be cleared on Honor 9

The cache is an area of ​​temporary data storage that is used by applications and the operating system itself to speed up access to frequently used information. When you launch a browser, social network or game, the device saves certain elements so that the next time you access it, it does not have to download them again from the Internet or recalculate complex algorithms. This significantly saves traffic and processor time, making the smartphone operate more smoothly.

However, over time, the size of these temporary files can grow to gigabytes, especially if you actively use instant messengers like Telegram or Viberthat cache every photo and video you view. The accumulation of stale or corrupted data in the cache can lead to conflicts when an application tries to use incorrect information instead of up-to-date information. In such cases, there is a need for forced cleaning.

It is important to distinguish between the application cache and the system partition cache. The first relate to specific apps and clearing them is safe, although it may result in the application taking a little longer to load than usual the next time you launch it. The system cache stores data necessary for the operation of the shell EMUI and kernel Android, and clearing it is often required after major firmware updates or when strange interface glitches appear.

⚠️ Attention: Clearing the cache does not delete your personal data, such as contacts, photos or correspondence. However, clearing application data (not to be confused with the cache) will completely reset the app to its original state, deleting logins and settings.

Preparing the smartphone for the cleaning procedure

Before taking active steps to delete temporary files, it is recommended to complete several preparatory steps. This will help avoid accidental loss of important information and ensure process stability. Although the cache deletion procedure itself is safe, the human factor always plays a role, especially in menus with similar item names.

Make sure that your battery level Honor 9 is at least 30-40%. If the device suddenly turns off during the process of clearing the system cache through Recovery mode, this may lead to damage to the file system. It's also worth checking for free RAM by closing unused background applications through the task manager.

If you plan to clear the cache of specific applications that require authorization, make sure you remember your passwords. In rare cases, especially when working with banking applications or corporate clients, clearing the cache may reset the security session, requiring you to re-enter credentials or verification codes.

• 🔋 Charge your device to at least 40% for safe operation in recovery mode.
• 🔒 Write down passwords for important applications so you don't waste time on them recovery.
• 📂 Back up important files to your computer or cloud just in case.
• 📶 Turn off automatic application updates during the procedures.

Clearing the cache of individual applications through the settings

The most common and safest way to free up space is to work with the cache of specific apps through the standard settings menu. This method allows you to specifically remove garbage from applications that you have not used for a long time, or from those that consume too many resources. In the shell EMUIinstalled on Honor 9, this process is intuitive.

First, go to the main smartphone settings menu. Find the partition, which may be called Applications or Application Manager, depending on the firmware version. Here you will see a complete list of installed software. It is most convenient to sort the list by memory size to immediately identify the main “pollutants”.

Select the desired application from the list. On the app information screen you will see a button Memory or just a button Clear cache. Clicking on it will instantly delete temporary files. If the button is inactive, it means that the application does not have an accumulated cache at the moment. For system applications, this function is also available, but may be limited by access rights.

Settings → Applications → [Select application] → Memory → Clear cache

It is worth noting that for some instant messengers, such as WhatsApp or Telegram, the built-in cache clearing through the Android settings may be less effective than using the internal tools of the applications themselves. They can be configured to automatically delete media files after a certain period of time, which prevents the cache from growing in the future.

Using the built-in phone manager

Smartphones Honor and Huawei are pre-installed with a powerful system application called Phone Manager (or Phone Manager). This tool is designed specifically to optimize the operation of the device and includes functions to scan the system for junk files. Using this method is the most convenient for the average user, since it does not require a deep dive into the settings.

Run the application Phone Manager from the main screen or from the utilities folder. On the main screen you will see a large round button with a system status indicator. Click on it to start the optimization process. The system will automatically scan the internal memory, identify unnecessary files, duplicates and, of course, the application cache.

After the scan is completed, you will be prompted to clear the found files. You can click the Clear button to delete all garbage at once or go to detailed view to select what exactly to delete. Here you can often find a cache from deleted applications, which for some reason remained in the system, as well as advertising files and empty folders.

File type	Description	Deletion security
Cache applications	Temporary app data	Completely safe
Residual files	Data from remote applications	Safe
Unwanted files	Advertising garbage, logs	Safe
Large files	Video, archives (requires verification)	Only after verification

Regular use Phone Manager helps keep memory clean without manual intervention in each application separately. However, it is worth understanding that this tool may not see specific logs of some apps, so periodic manual checking is still recommended for maximum efficiency.

⚠️ Attention: The interface of the Phone Manager application may vary slightly depending on the version of EMUI. If you do not see an item, check for updates for system utilities in the AppGallery.

What to do if Phone Manager does not find garbage?

Sometimes it happens that the built-in scanner shows 0 MB of garbage, although the memory is full. In this case, try clearing the cache manually through application settings or using Recovery mode for system cleaning.

Full clearing of the system cache via Recovery Mode

If standard methods did not help eliminate system glitches or you want to perform a deep cleaning after updating the firmware, you must use recovery mode Recovery Mode. This method allows you to clear the cache partition of the entire operating system without affecting the user's personal data. This is the most effective way to deal with system errors.

To enter recovery mode on Honor 9 you must completely turn off your smartphone. After this, simultaneously hold down the Volume up and Powerbuttons. Hold them until the Honor logo appears and then release the Power button while continuing to hold Volume down until the recovery menu appears. On some firmware versions, you may need to connect the device to the computer via a USB cable before turning it on.

In the Recovery menu, control is carried out using the volume buttons (up and down to move) and the power button (to confirm the selection). You need to find the item Wipe cache partition. Be extremely careful: do not confuse it with item Wipe data/factory reset, which will delete all your data. Select clear cache and confirm.

1. Turn off the phone.
2. Press Volume Up + Power.
3. Select Wipe cache partition from the menu.
4. Confirm with the Power button.
5. Select Reboot system now.

The cleaning process will take only a few seconds or minutes, depending on the amount of accumulated data. Upon completion, the screen will report success, and you will only have to select Reboot system now to restart your smartphone in normal mode. The first launch after such a procedure may last longer than usual, since the system will re-generate the necessary temporary files.

Solving problems after clearing the cache

After carrying out the cleaning procedures, you may encounter some changes in smartphone behavior that are completely normal. For example, applications may start a little slower in the first minutes of use. This is because they need to re-create the cache files that were deleted. Don't panic and think that cleaning has damaged the device.

Sometimes users notice that after clearing the browser cache, saved passwords or browsing history have disappeared. This occurs if the option to clear data rather than just the cache was selected, or if the browser stored this data in a temporary area. In such cases, it is enough to simply log in to your favorite sites again.

If, after clearing the system cache via Recovery, the phone begins to work unstable, try rebooting it again. In rare cases, the system requires a double reboot to correctly initialize all services. Also make sure that there is at least 10-15% free space left on the disk, otherwise the system will not be able to work effectively even with a clean cache.

• 🚀 Give the system 5-10 minutes after reboot for background optimization.
• 🔒 Check the functionality of password autofill in the browser and restore the session when necessary.
• 📉 Monitor the heating of the case in the first hour of operation - active cache creation can cause short-term heating.

⚠️ Attention: If, after clearing the cache, any application stops running or crashes immediately after opening, try in the application settings to clear not only the cache, but also the data of this particular application (with loss of settings inside it).

Frequently asked questions (FAQ)

Will clearing the cache delete my photos and contacts?

No, clearing the cache (both through application settings and through Recovery Mode) affects only temporary technical files. Your personal data, including photos, contacts, messages and installed applications, remains completely safe. Delete only the cache, avoiding the "Reset to factory settings" item.

How often should you clear the cache on Honor 9?

There is no special frequency. It is recommended to perform cleaning as needed: when the memory is full, the phone starts to slow down, or after major system updates. For active users of instant messengers, prevention should be done once every 1-2 months.

Why does the application cache immediately appear again after cleaning?

This is normal behavior of the Android operating system. Applications automatically create new temporary files immediately after launch to ensure their functionality. The cache will grow again as you use the app, but it should not occupy abnormally large volumes immediately after clearing.

Can I delete the cache of system applications that I do not use?

Yes, you can clear the cache of any system applications through the settings menu. It's safe. However, it is not recommended to delete data system applications, as this may lead to interface malfunctions or loss of system settings.

What to do if the "Clear cache" button is inactive (gray)?

This means that for the selected application in There are currently no accumulated temporary files, or it is a system process whose cache is managed automatically. In this case, there is no need to take any action, the space is not occupied.