HOW TO USE YOUR NOKIA LUMIA PHONE AS MASS STORAGE DEVICE

Here are the steps to get it done in your Lumia :

Open Registry Editor by typing “ regedit ” in start bar or in Run tool.

In the Left Pane click HKEY_LOCAL_MACHINE and find a folder tree called SYSTEM -> CurrentControlSet -> Enum and then USB.

Press Ctrl + F or click Find in Edit Menu at the Menu Bar and search for “ZuneDriver” make sure USB folder is selected before searching.

It will find Zune Driver inside a folder tree called as VID_045E&PID_04EC&MI_00 . Just ignore all the stuffs and click Device Parametres folder tree.
P.S : Before we proceed rightclick Device Parameters and click Export in case if something goes wrong this will restore the registry to old state  .

When you click Device Parameters in the right pane it will display the registry values under it.

Registry editing begins now
In the right pane double-click the registry value called

• ShowInShell and change its value from 0 to 1 .
• PortableDeviceNameSpaceExcludeFromShell and change its value from 1 to 0 .
• EnableLegacySupport from 0 to 1 .

Make sure these three values are changed. Just close the registry editor and it will save those values.


WARNING from llaadd: Before you even consider doing this, please note it is not recommended as WP7 was specifically designed not to work in mass storage mode because of issues when used in this way. Known issues include: media not showing on your phone properly and reduced responsiveness. Nokia and Microsoft are well aware of Mass Storage mode and they would have enabled it, if they felt it were viable for this OS.