Storage device, operating method for the same and memory system

A memory system comprising:

• a non-volatile memory storing a firmware image and an emergency image;
• a storage controller controlling the non-volatile memory;
• and
• a host device connected to the storage controller and storing a recover image,
• wherein the non-volatile memory in which the emergency image is stored has a write disable state, and the non-volatile memory in which the firmware image is stored has a write enable state,
• the storage controller loads and executes the emergency image from the non-volatile memory, and provides a recover image request signal to the host device based on the emergency image,
• the host device provides the recover image to the storage controller in response to the recover image request signal, and
• the storage controller replaces the firmware image of the non-volatile memory with the recover image.

An operating method for a storage device, the operating method comprising:

• providing a storage device including a storage controller, a first non-volatile memory storing a firmware image, and a second non-volatile memory storing an emergency image;
• booting the storage controller to load the firmware image from the first non-volatile memory;
• performing an integrity check on the firmware image;
• loading and executing the emergency image from the second non-volatile memory when the integrity check of the firmware image fails;
• providing a recover image request signal to an external device based on the emergency image;
• receiving a recover image from the external device;
• writing the recover image to the first non-volatile memory;
• and
• rebooting the storage controller to load the recover image from the first non-volatile memory.