Here, are the steps that has to be follow in-order to install WinterBoard from Cydia. Please note that you must have a jailbroken device in-order to follow the below instruction.
The first step require you to launch Cydia and search for WinterBoard.
Now press to choose System from the list of Sections.
Again press to select WinterBoard from the list of Packages.
Press the Install button at the top right of the screen.
Now you can press the Confirm button at the top right of the screen to start the installation.
Once the installation has completed successfully press the large Reboot Device button.
Remember that once the iPhone has rebooted you will notice a new WinterBoard icon. Press the icon on your SpringBoard to launch the application.