Change DFU Mode Remotely

[rfadell3]

I have a few Notecards in the field that are set to alt DFU mode when they should be aux. It’s preventing the host MCU from updating.

Is there a way to update the DFU mode remotely?

[gwolff]

General Case

You can update the DFU mode of your Notecards using the card.dfu request. To change the DFU mode from altdfu to aux, you need to send a request to each Notecard specifying the desired mode. Here is an example of how to structure this request:

@system

{
“req”: “card.dfu”,
“mode”: “aux”
}

Send this request through the appropriate interface to your Notecards in the field. This will change their DFU mode to auxiliary, allowing your host MCU to perform updates as intended.

For more details on how to implement this, please refer to the Blues Notecard documentation.

Remote DFU Config Change

The Blues Support team may be able to help you out. Please reach out with your device UID. You will likely need to enable Blues Support access to your Notehub project. See Notehub Walkthrough - IoT Connectivity at Blues

[rfadell3]

Hi Greg,

Does this request have to be passed to the Notecard through a wired serial connection?

Is there any way to update it remotely?