Reset bricked Boron LTE-M

Hi,

In my efforts to configure my Boron LTE-M to use a 3rd-party SIM card, I have managed to end up in a bricked state. I have tried to flash varying versions of bootloader/system-part1/tinker to the device via particle-cli and at some point I must have broken the software state. The device now blinks red and I can fall into DFU mode (flasing yellow) by pressing the mode button for 10+ s.

I really need help to reset the device back to some sort of (working) factory state. Your advice is most welcome.

Best,
Erik

Answering my own question, I finally managed to reboot the device with the latest beta firmware (1.2.0) and also claim the device on the cloud.

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