I have two Particle Borons. I updated and flashed tinker to the devices via the USB. I am having issues powering either device from the USB. I am not powering both at the same time, but rather the two devices indicates it seems to be repeatable. Neither device seems to have power from the USB.
When I plug in the USB to the Boron, the main LED flashes ‘blue’ and the lights flicker for a second, then dark (as if there is not power). I can power the devices by applying 6-7V to VUSB pin and GND. However, the device goes into listening mode and does not connect to LTE. Since it is connected not to the USB and not to LTE, I don’t know how to communicate with the device for further troubleshooting.
I have tried multiple micro-USB cables. I have one USB cable that powers the device to flashing blue, but does not detect the device in command prompt (Windows 10) by running ‘particle usb list’.
Any thoughts on how to recover?