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.
- I cannot connect to WLAN (WiFi) access point with my Lumia phone. What can I do?
- After an update I get a entry names "@C:" on the top of settings list on my Nokia Lumia phone. What is that?
- What can I do if cannot find the Nokia Glance screen on my Lumia Windows Phone 8?
- Why does my Lumia only show phone number of caller or SMS sender, although the contact name is listed in People hub?
- Which version of Windows Phone does my Lumia have?