Experts point out that iOS continuously scans and caches data to improve performance, but this system may sometimes get out of control and lead to abnormal inflation of the system’s data space.
This problem causes several direct effects, the most prominent of which are suddenly full storage space, slow device performance, failure to download iOS updates, and difficulty saving photos or new applications. Some users have also reported that the device becomes unstable when the storage space is close to being completely full, which compounds the frustration resulting from this glitch.
Although a final official solution has not been issued by Apple yet, several methods have proven partially effective, including restarting the device, as this helps to recalculate the storage correctly and reduce the apparent size. (Erm News)
