ARGON: 1.3.1-rc.1 update issue

I wanted to experiment with the enhancements around BLE so updated the Device OS to 1.3.1-rc.1 using the CLI and DFU mode System-Part1 and Tinker OK, then loaded Bootloader followed by Softdevice (as per instructions in release notes) - immediately started SOS 1 flash. I now can only get into DFU mode, Safe Mode but then SOS 1 flash, can’t downgrade to 1.3.0. can’t get into listening (blue flash) mode. Any ideas about next steps to recover this Argon?

This is most likely an incompatibility of DeviceOS < 1.3.1-rc.1 and the new SoftDevice. Make sure to:

  1. Update the CLI to the latest release
  2. Put the device into DFU mode
  3. Reflash 1.3.1-rc.1 system-part1
  4. Reflash SoftDevice (particle flash --usb argon-softdevice@1.3.1-rc.1.bin) – 1.3.1-rc.1 SoftDevice is 7.0.0.

When downgrading DeviceOS make sure to downgrade SoftDevice as well (from DFU). 1.2.1 supports SoftDevice <= 6.1.1, <1.2.1 DeviceOS supports only 6.0.0.

You can find 6.1.1 and 6.0.0 binaries for now here.

Andrey - thanks - I was using the latest CLI release reflashing it seems to have fixed things.

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