Even if an update is only 1GB, your phone typically needs 2 to 5GB of free space to download, unpack, and verify the files.

Ensure your "Recently Deleted" photos and files are permanently deleted, as they still occupy space until fully purged. Can't update OS - not enough space - Samsung Community

If you’ve received a notification for a system update only to find that your , you aren't alone. This is a common frustration, often caused by simple connectivity glitches, lack of storage, or system-level bugs.

Virtual Private Networks can sometimes interfere with the connection to your manufacturer’s update servers. 2. Free Up Internal Storage