I recently got a new job and a Microsoft Surface laptop to go with it. So, I tried updating the firmware from the laptop. When I connected the module to the laptop, it popped up the notification in the lower right that it was setting up, "DFU in FS mode." I then went to Chrome, went to the update page and clicked Connect, but it was nowhere to be found in the list that popped up. I tried it a number of times after rebooting the module, disconnecting/reconnecting, hard refreshing the page in the browser, and so on. Always the same disappointing result. I guess until I find a friend with a Mac, I will be content with the factory firmware.

Just following up. I got a brand new USB cable and just tried again. Same result. I see "DFU in FS mode" but the Connect button never changes to "Disconnect." Unfortunately I don't have another computer to try it on.

Thanks for the feedback. I noticed the "Connect" button at the top of the page changes to "Disconnect" after you connected it. Mine never did that. I don't think my PC even knows it's there. I will search for a different USB cable to try on it!