Want to delete all content from your phone mass memory? You can format the mass memory.
Back up all content you want to keep before formatting the mass memory. All content on it is permanently deleted.
Select Files.
Select and hold the mass memory, then select Format.
Do not format the mass memory using PC software, because it may cause degraded performance.
You can use Nokia Suite to back up your content to a compatible computer. Digital rights management (DRM) technologies may prevent some backup content from being restored. For more info about DRM used for your content, contact your service provider.