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.
- How do I check if there are new updates available for my Lumia phone?
- What if I have trouble installing an update on my Lumia phone?
- My Lumia stays at the spinning gears, how do I get it to stop?
- Does my Nokia Lumia use an IP address when it accesses data networks?
- Can I use my Nokia Lumia as a tethered modem for my laptop?