I have an old Photon (0.4.3 firmware) that I just pulled back out of the box a few days ago to use with IFTTT. It was working fine with Tinker installed. I attempted to burn it for the first time with a sketch (blink) and it has been unresponsive since then. I’ve tried various things from the forums with no success. On the IDE page it shows my Photon as offline.
I can get the Photon to be recognized by ‘particle list’ by putting it in Safe mode or DFU mode.
Safe mode: running the commands here results in ‘Flash device failed
I tried updating by cli also. Running ‘particle update’ results in ‘Cannot open device’. I can get the device into DFU mode but using dfu-util all I get is “Filter on vendor = 0x2b04 product = 0xd006 / Cannot open device”. (I’ve tried this with two USB cords that have worked fine with other products.)
One thing I’ve noticed is that from the IDE, if I select signal while it is in safe mode or DFU mode it will go from flashing to solid.