Note: Particle support is helping me with this and similar Argon issue
Make sure the xenon is up to date before doing same for Argon and creating the mesh
Reset the Xenon (Hold down MODE button and RESET when it flashes white release. goes back to listening blue)
Put Xenon in DFU mode ((Hold down MODE button and RESET when it flashes yellow release. stays flashing yellow)
In a terminal window:
iMac-2032:~ joe$ particle update
Your device is ready for a system update.
This process should take about 30 seconds. Here it goes!
! System firmware update successfully completed!
Your device should now restart automatically.
Xenon Flashing Blue
Put Xenon back in DFU mode and then in a terminal:
iMac-2032:~ joe$ particle flash --usb /Users/joe/Downloadsfirstname.lastname@example.org
iMac-2032:~ joe$ particle flash --usb /Users/joe/Downloadsemail@example.com
SOS - 10 Flashes