In order to hard reset a Sagem RC 750, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Sagem RC 750 device will be brought back to the default configuration of a brand new device.
1. Turn on the phone with a Power button. Afterwards press Call button to open the dialer.
2. Open Menu > Settings > Networks > Phone > Reset.
3. Confirm the process by pressing the Call button once more.
4. Done! Your phone should now reset'n'restart, completing the hard reset process.