Find out how to hard reset Orange SPV E600 : Click Start > Expert > Clear Storage...

Restarting your Phone

Occasionally, you may want to restart your phone, for example, when a
program is not performing properly or the phone is not responding to any
keypresses.
To restart the phone
1. Remove the battery.
2. Reinsert the battery and turn on your phone.
WARNING! If the phone is restarted while a program is running, unsaved work will
be lost.

Resetting your Phone

Resetting your phone will remove all the data from its memory which
include contacts, tasks, calendar appointments, and more, and restore the
phone back to the factory default settings.
WARNING! All your data will be deleted, it is recommended that you back up your
data first before resetting your phone.

To reset your phone

1. Click Start > Expert > Clear Storage.
2. Follow the on-screen instructions to reset the phone.
The phone will restart after it has been reset.