Are you thinking of refreshing your Nokia mobile, then just go to the main menu and type  *#7780# then it asks u whether to Restore all original phone settings?

It works for all the Nokia Phones including the new phone released by nokia like the N series, 5800, E series, Music phones. . etc

If you select this the mobile will switch off on its own and no need to panic why the phone got switched off it is just a part of the procedure the phone switches off and then refreshes itself and switches it On.

And one more thing there will be no loss of information or files from the phone when you refresh your phone.

The main USES of refreshing the phone is in conditions like:

• When phone gets stuck.
• When your apps get stuck.
• When message delivery reports dont show up on your screen.
• When your gallery is stuck.
• And in case when the files are not shown in the supported format by the phone.