In order to hard reset a BlackBerry Curve 9350, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
BlackBerry Curve 9350 device will be brought back to the default configuration of a brand new device.
1. Power up the phone by pressing the Power button.
2. You'll find yourself on the home screen. There, select the All tab. Enter it using the trackpad.
3. Choose Options, then Security and then Security Wipe.
4. Remember to either check or uncheck the data you want to expunge.
5. When prompted to, type the word "BlackBerry" into the phone. Afterwise, select Wipe data.
6. Confirm the operation with a press of a trackpad. Voila! The hard reset is complete.