The Nokia X has finally started receiving the KitKat Nokia to bring KitKat 4.4.2 and all the cyanogenMod 11 (CM 11) features.
USB cable for the connection between your Nokia X and the PC.
The device must be charged up to at least 85% of battery level so that it does not flunk during the KitKat 4.4.2 CM 11 ROM installation.
Activating USB debugging on your Nokia X is a must. This can be done by going to Settings -- Developer Options -- USB debugging
Ensure that you have all the necessary USB drivers installed on your PC to establish a healthy and uninterrupted connection between your Nokia X and PC.