How to reset a Xenon?

[Jimmie]

I have a Xenon with bad firmware which is preventing it from joining the Mesh and the Cloud.

How can i reset it? I tried having it join another network, setting it up with an Ethernet Featherwing, but nothing worked …

[kennethlimcp]

Place it in safe mode

[Jimmie]

Thank you @kennethlimcp.

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With the code you sent me earlier (thanks again),

How to flash Xenon with "SYSTEM_MODE(MANUAL);"

The spacing between the Xenon and the Boron is now only a few feet. I am trying to setup a system which is “forgiving” of OTA updates to both Gateway and attached mesh devices. I am however “almost” happy with the Boron firmware. If this is your primary concern, it sounds better to have this flagged up as an issue to be looked into for the firmware team. I will not be performing OTA updates during the on-site testing (not because it is not reliable now), but instead, ensure that the use case…

I was able to replace the Xenon above with another unit which is now working at the remote site. One (minor issue) remains where if a Xenon gets an OTA firmware update, it joins the Mesh but not the Cloud. The only way I found to make it join the Cloud is to remotely reset its Gateway (my new firmware supports that).

[Jimmie]

My Xenon was not working because its firmware set to (MANUAL) mode without the cloud. Also, it was flashing blue even on power on. None of the directions on the link below worked (except for DFU mode).

https://docs.particle.io/tutorials/device-os/led/xenon/

The only way I could get the Xenon to reset is by having it join a new mesh network. After that I was bale to put it is safe mode and successfully re-flashed it.