This is an operation that removes all junk files from your device. In the result of the Wipe Cache process, your device will perform quicker and the system will be refreshed. Wipe Cache is the best way to optimize the system of your device. If you would like to optimize because your device performs really slow, then you definitely should Wipe Cache Partition to help your device works smoother. This operation is safe and won't delete your personal files, it will only affect your temporary cache files.
Recovery Mode gives you access to Wipe Cache Partition on your device. To get into Recovery Mode, you need to use a combination of keys. (Most of the device it is Volume Up+Power key or Volume Down+Power key). If you would like to learn how to get access to the Recovery Mode in order to refresh the system of your device, then we highly recommend getting access to the Wipe Cache Playlist on our HardReset.info YouTube Channel to find a combination of keys that will work on your own model phone.