Electronic device, program update method, and non-transitory recording medium

A program update method for an electronic device, the program update method comprising:

• executing data processing with another device, the electronic device including a memory in which an own device program that is a first computer program specifying an operation of the electronic device is stored in a first area in the memory and in which another device program that is a second computer program specifying an operation of the another device is stored in a second area in the memory, the second area being different from the first area, the data processing with the another device being based on the own device program stored in the first area;
• receiving, from the another device, a version of a second another device program stored in the another device;
• transmitting the another device program stored in the second area to the another device to cause the another device to update the second another device program stored in the another device in response to the version of the second another device program received from the another device being older than a version of the another device program stored in the second area on condition that an operator inputs an update operation, the update operation being input on a confirmation screen and instructing the second another device program stored in the another device to be updated;
• storing, in the second area in place of the another device program stored in the second area, an own device update program that is input from outside the electronic device, and updating the own device program stored in the first area using the own device update program;
• receiving, from the another device, a version of a second own device program stored in the another device;
• and
• in response to a version of the own device program stored in the first area being older than the version of the second own device program stored in the another device, receiving, from the another device, the second own device program stored in the another device, and updating the own device program stored in the first area using the second own device program stored in the another device on condition that the operator inputs a second update operation, the second update operation being on the confirmation screen and instructing the own device program stored in the first area to be updated.

A non-transitory recording medium having a set of computer readable instruction that, when executed, cause an electronic device to:

• execute data processing with another device, the electronic device including a memory in which an own device program that is a first computer program specifying an operation of the electronic device is stored in a first area in the memory and in which another device program that is a second computer program specifying an operation of the another device is stored in a second area in the memory, the second area being different from the first area, the data processing with the another device being based on the own device program stored in the first area;
• receive, from the another device, a version of a second another device program stored in the other device;
• transmit the another device program stored in the second area to the another device to cause the another device to update the second another device program stored in the another device in response to the version of the second another device program received from the another device being older than a version of the another device program stored in the second area on condition that an operator inputs an update operation, the update operation being input on a confirmation screen and instructing the second another device program stored in the another device to be updated;
• store, in the second area in place of the another device program stored in the second area, an own device update program that is input from outside the electronic device, and update the own device program stored in the first area using the own device update program;
• receive, from the another device, a version of a second own device program stored in the another device;
• and
• in response to a version of the own device program stored in the first area being older than the version of the second own device program stored in the another device, receive, from the another device, the second own device program stored in the another device, and update the own device program stored in the first area using the second own device program stored in the another device on condition that the operator inputs a second update operation, the second update operation being on the confirmation screen and instructing the own device program stored in the first area to be updated.