Some Android phones store temporary files that are used for things like operating system updates in a cache partition.. You may have seen recommendations on the web suggesting that you erase this partition from time to time, but is it a good idea?
What is the system cache and what data is stored there?
Long time, in the days before Nougat, Android used a system cache to save system update files. Since then, Android has moved away from it, preferring a different method to install updates.
Many modern phones don't even have a system cache now. If yours has a system cache, it will be on a separate partition from your phone's main storage. The files stored there do not take up any space reachable by the user; clearing your system cache will not allow you to download any new apps, store files or save more cat photos.
Additionally, the system cache is different from the cached application data., which is data stored by applications and specific to that particular application. As an example, Spotify stores streamed music in its cache file for faster playback (and offline). Each application has its own cache file that is separate from the system cache file and does it occupy space achievable for the user. Clearing that cache is a great way to free up space; just keep in mind that the app will rebuild the cache as you use it, so deleting it is not a permanent solution if you need more space.
RELATED: Why Android no longer needs a cache partition
Should I clear the system cache?
Clearing the system cache shouldn't cause any problems, but it's not likely to help much either. The files stored there allow your device to access commonly referenced information without having to constantly rebuild it.. If you clear the cache, the system will rebuild those files the next time your phone needs them (in the same way as with the application cache).
Although we do not suggest clearing the system cache, especially regularly or for no reason, there are times when it can help. As an example, sometimes, these files can get corrupted and cause problems. if you are having difficulties with your phone and you have no options, you can try.
How to clear your phone's system cache
As mentioned, some phones do not have a system cache partition. We tested multiple phones, and only those of OnePlus and Alcatel allowed us to delete the cache. Samsung Galaxy, Google Pixel and Oppo and Honor phones didn't have that option, as an example. As with many things on Android, your mileage may vary.
To clear your phone's system cache, you will first need to reboot the device in recovery mode. To do it, turn off the device, then press and hold the power button and volume down until the phone turns on again. If this doesn't work, button combination may be different on your device; consult user documentation if necessary.
You may be prompted to enter a password. If so, enter your lock screen password to enter recovery mode.
On some devices, touch screen can work in recovery, allowing you to touch the option you want to choose. In others, you will need to navigate through the different options by pressing the volume up and down buttons, using the power button as the key “enter”.
From now on, the procedure will depend on your specific device, but will look for an option “Clear cache” of some kind. You may need to consult the documentation for your particular device if you have problems.
Despite this, once you have found the correct option, select it. Since it is an irreversible decision, some devices may ask you to confirm that you want to continue. Once you confirm, it should only take a few seconds to clean that partition.
When I finish, use the reboot option in recovery to reboot your phone into the operating system. Your phone will turn on regularly, And you're all set!
