You need to wait for a firmware update to your phone and then accept Extras+info app update. The extras+info app update installs the Storage Check app to the Lumia device. It will be visible in the Settings menu.
- What is the Lumia Video Trimmer app on Lumia phone?
- What can I do with the Lumia Video Trimmer app on my Lumia phone?
- Why can't I cut video clips exactly where I want with Lumia Video Trimmer?
- What kinds of videos can I trim on my Lumia phone?
- Where can I find the trimmed and saved video clips on my Lumia?