REPLACING FIELD HARDWARE INVOLVING UTILIZATION OF A SMART PHONE

A technique enables robust and reliable replacement of field hardware. The technique involves providing a set of instructions to a user from a smart phone. The set of instructions directs the user to perform a field hardware replacement operation at a field hardware installation site. The technique further involves, in accordance with the set of instructions, collecting field hardware data from the field hardware installation site using the smart phone prior to performing the field hardware replacement operation. The technique further involves receiving additional field hardware data regarding the field hardware installation site using the smart phone after performing the field hardware replacement operation.