In order to hard reset a Orange Stockholm, you should perform the following steps.
Remember! Hard reset will delete all the data on your device; pictures, contacts, messages, apps and more.
Orange Stockholm device will be brought back to the default configuration of a brand new device.
1. Power down the device.
2. Now press'n'hold the Volume Up and Power buttons until Recovery mode opens.
3. Lets continue! A menu will open. From it, select wipe data/factory reset. To do so, use Volume buttons to navigate the menu and Power to select it.
4. Next, select Yes - delete all user data and Reboot System Now.
5. Voila! The phone should now reset and restart, completing theh hard reset process.