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OS: Ubuntu 24.04.2 & Windows 10

CubeProgrammer Version: 2.20.0

Board: STM32F407G-DISC1

Firmware Version: V15J63M63

I am having intermittent connectivity issues with my discovery board and the STM32 IDE/Programmer. My system is able to detect the discovery board as it shows up when using the Linux command: lsusb and it shows up on Windows DeviceManager*.* When launching the CubeProgrammer application it is able to detect the board and populate with the relevant info (See picture).

When i try to connect to the board using the Connect button I get the following error: DEV_TARGET_CMD_ERR. I've downloaded and installed the most up to date drivers for both Linux and Windows, changed USB-mini cables, tried updating the firmware (which failed since I cannot connect to the board...), and verified the board is getting appropriate power but this connection issue still persists.

At this point I am not sure what else to check or do. I bought the board in April from the ST website so it is a legitimate board. Any help or info on this issue would be greatly appreciated.

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  • Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking. Commented Nov 7 at 0:25
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