I am having a problem …My Xenon went into a hard fault and the only way to recover it was to USE it in DFU mode flashing yellow then I flashed tinker-0.9.0-xenon.bin and it says flash success then the device goes dark and the only way to see it is to put it in DFU Mode any ideas ??

Hi @jade7272 , Can I ask you to do the following? In CLI , run the following semi-magic commands: particle update and particle flash --usb tinker Let me know if this does not bring it back to a known state.

Xenon Went dark on Me

Troubleshooting

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Xenon Went dark on Me

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