Hard Reset Nokia N97

Hard reset is reset factory settings and formatting at the same time. If your phone Nokia N97 hangs and can not be soft reset by signing the settings menu, this way you can do by pressing the caps shift, space bar, delete (picture beside which are marked in red) and power button simultaneously approximately 5 seconds.
Don't forget to backup the data first, because it will be lost. Wait until the phone restarts automatically and is ready for use. Perform the full power batrre condition so as not to stop when formatting and destructive software.