There are many scenarios when a phone needs to be reset/flashed – like a dead/bricked phone, frequent restarts, restart-loop issue, WP8-Lumia cog-wheel issue etc. Quite a few tools are available for general public which can be used to reset/update/flash firmware of a Nokia phone like Nokia Care Suite, Phoenix, JAF, NSS etc. However with the change of Nokia’s firmware download policies and shifting focus to Windows Phone Lumia devices, older methods are getting obsolete. Most Lumia phones (specially newer ones like Lumia 920, 925, 525, 625, 928, 1020, 1320, 1520) are not supported by Phoenix, JAF and NSS. Even latest version of Nokia Care Suite is useless for general public as Nokia has removed the Care Suite External login option from it (thus only authorized Nokia personnel can login and use NCS now).