Electron Firmware and Dev

With 0.5.3 and later OTA firmware update should be possible via CLI

particle flash <deviceName> system_part1.bin
particle flash <deviceName> system_part2.bin
particle flash <deviceName> system_part3.bin
particle flash <deviceName> yourFirmware.bin

The binaries can be downloaded from GitHub (and always sent out in the Firmware Update Thread )

Not really