david jeremiah sermons july 2020
Not system firmware, but any blinky-type code. Like: “dfu-util ” instead of “particle flash ”. dfu-util -d 2b04:d006 -a 0 -i 0 -s 0x080A0000:leave -D d7Blink.bin. During the Photon’s flashing yellow, DFU mode, the Device Manager has a heading of: “libusbK USB Devices” and “Photon DFU Mode” indented on the line below. Tried from C9X, failed, tried using dfu-util on the command line, failed, both with "cannot find device". I clearly have a STM bootloader device available. Plugged my pre-production unit in, same STM bootloader device, same VID, same PID, same version, programs immediately. Unplug that, and plug in the production unit, fails again. OS is WIN 7.