Split communications for updating remote field devices

A mobile device, comprising:

• one or more memories configured to, individually or in combination, store instructions;
• and
• one or more processors communicatively coupled with the one or more memories, wherein the one or more processors are, individually or in combination, configured to execute the instructions to cause the mobile device to:
• detect a signal broadcasted by a remote field device, wherein the signal includes a unique identifier of the remote field device;
• transmit, to the remote field device and based on the unique identifier, a connection request including credentials related to performing a manufacturer control function on the remote field device;
• and
• based on a response to the connection request from the remote field device, establish a connection with the remote field device to allow initiating, by the mobile device, the manufacturer control function on the remote field device,
• wherein the connection with the remote field device is established via an encrypted secure channel that logically isolated from a second encrypted secure channel that the remote field device establishes with another mobile device authorized for accessing other functions of the remote field device, such that the connection established via stored manufacturer credentials can access the manufacturer control function and cannot access the other functions.

A method for performing manufacturer control functions on a remote field device, comprising:

• receiving, from a mobile device, a connection request including credentials related to performing a manufacturer control function on the remote field device;
• verifying the credentials with stored manufacturer credentials that are stored in one or more memories for performing the manufacturer control function, wherein the stored manufacturer credentials are different from stored owner credentials stored in the one or more memories for accessing other functions of the remote field device;
• and
• based on verifying the credentials, establishing a connection with the mobile device to allow initiating, by the mobile device, the manufacturer control function on the remote field device,
• wherein the connection with the mobile device is established via an encrypted secure channel that logically isolated from a second encrypted secure channel that the remote field device establishes with another mobile device authorized for accessing the other functions of the remote field device, such that the connection established via stored manufacturer credentials can access the manufacturer control function and cannot access the other functions.