Please check the Azure Sphere OS on your device is up-to-date using 'azsphere device show-deployment-status'. The azsphere device enable-development or azsphere device capability update command returns an error similar to the following:Įrror: The device did not accept the device capability configuration. The following errors are symptoms of this problem: This problem can occur if the device has been offline for an extended period, during which Microsoft updated its internal keys. If you receive errors when you try to apply a device capability to an Azure Sphere device, the problem might be that the OS on your device is out of date. Run the azsphere device rescan-attached command to power-cycle the FTDI ports of all attached devices. Driver problems can cause PC-to-device connections to disappear intermittently, or can prevent the azsphere command from finding all attached devices. If the subnet is not the problem, you may have a problem related to the FTDI driver used on Windows. Currently, you cannot change the range of IP addresses that Azure Sphere uses. If you have other software that uses the same subnet, either disable that software or limit the range of IP addresses that it uses. If your computer can connect to the Azure Sphere device, but often drops the connection, you may have a conflict in the IP subnet.Īzure Sphere uses subnet 192.168.35.*. In some cases, USB ports do not provide adequate power for the board, so a powered hub may solve the problem. If the problem recurs, plug the device into a powered USB hub. If the error occurred when the device was plugged into a USB hub, plug it into a port on the machine instead. Plug the device into a different USB port. Check that the header has not been dislodged or removed. For example, Seeed MT3620 Development Kits are shipped from the factory with a jumper header across pins 2 and 3 of J3, which powers the clock from the main power supply. In addition, make sure that the board itself is properly configured. If you're using a different dev kit, see the manufacturer's documentation. If your dev kit is compatible with the MT3620 reference development board (RDB), see the MT3620 development board user guide for details. Make sure that the real-time clock (RTC) is powered, by either the main 3V3 power supply or a coin cell battery. If the device appears "dead" or unresponsive, the problem could be a lack of power. Or Linux-specific problems to determine whether the problem might be unique to your platform. If none of these steps solves the problem, see Windows-specific problems This command power-cycles the FTDI ports of all attached devices and can sometimes help in connection problems. On Windows, run the azsphere device rescan-attached command. Wait ten seconds or so for the device to restart, and then try the failed command again. If the device is connected, press the Reset button on the device or disconnect and reconnect the USB cable. If OS update is progress, the device should again become responsive when the update completes. To diagnose and resolve the problem, start with these basic steps:Įnsure that the device is connected by USB to the host machine. During OS updates, the device may fail to respond. The device is currently busy applying an Azure Sphere OS update. The board is not connected by USB to the host machine. Failed to establish communication with device after recovery.įailure to connect may occur for any of these reasons:.Failed to retrieve device ID from attached device: 'Could not connect to the device please ensure it is attached.'. ![]() Please try again if the issue persists, please refer to aka.ms/azurespheresupport for troubleshooting suggestions and support. If this issue persists, try uninstalling and reinstalling the Azure Sphere SDK. The device may be unresponsive if it is applying an Azure Sphere operating system update wait a few minutes and then retry. Check if your device is connected to the PC. Please check your device is connected and your PC has been configured correctly, then retry. The following error messages may indicate a failed connection: This topic provides troubleshooting steps for the following types of problems:Ī failure to connect to the device from a host machine can occur for many reasons and may trigger any of several error messages, depending on which tools or applications encounter it.
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