My issue is actually solved!
I waA trying to upload a new image to my device but get:
Copying application to the device Device would not stage app for sideload: Image not trusted by device; application development capability is required ('azsphere.exe device prep-debug') (DeviceClientException)
The problem is that my device seems to be waiting an update. I pressed reset several times, the wifi is enabled and connected but OTA doesn't start.
No news about version 19.07 in aka.ms/AzureSphereUpgradeGuidance
C:\Users\EAC\Documents>azsphere device show-ota-status Your device is running Azure Sphere OS version 19.06. The Azure Sphere Security Service is targeting this device with Azure Sphere OS version 19.07. warn: Your device is running an older Azure Sphere OS version (19.06). It has not yet started receiving the available update to version 19.07. warn: Your device is connected to Wi-Fi. If the over-the-air update does not begin, reset your device and try again. Go to aka.ms/AzureSphereUpgradeGuidance for further advice and support. Command completed successfully in 00:00:03.9230754.
Well, my device has been updated while writing this!
C:\Users\EAC\Documents>azsphere device show-ota-status Your device is running Azure Sphere OS version 19.07. The Azure Sphere Security Service is targeting this device with Azure Sphere OS version 19.07. Your device has the expected version of the Azure Sphere OS: 19.07. Command completed successfully in 00:00:04.0478440.