I uploaded a new app to my photon via the web IDE and the firmware update seems to have failed. The LED flashed like usually during the update and then froze for 5 minutes or so. The photon then restarted on its own but now goes to safe mode and after a random time (10-50s) the purple breathing hangs and it disconnects from the cloud. I flashed the same app to a second photon and it works just fine on that.
The photon having the problem seems to connect correctly to the cloud before hanging. Firmware should have been upgraded from 0.4.3 to 0.6.3, it still indicates the old firmware is installed.
I tried the following steps on two different computers (Win7 and Win10), without success:
I tried to update via the update manager, this exits with the fatal error message: win returned -1. The drivers seemed to have installed correctly. Neither listening mode, nor safe mode, nor dfu mode change the outcome.
I tried to run particle device doctor but it does not detect the device, despite it being in DFU mode. DFU driver seems to install correctly.
I tried to update by particle update and manual update procedures using dfu-util, but the device is not recognized.
Zadig does not recognize the device either… But when i plug in the photon for the first time, Windows installs the drivers.