Hello, I have had a look around the board but nothing that quite matches my issue. I have a fast flashing green boot light that then pauses momentarily and tries again, this behaviour began after a recommended auto firmware update. I can see the H7 appearing and disappearing in device manager over …

Understood. However in the meantime I grabbed the ST CubeProgrammer and used that to deploy the latest openmv.bin, this got me back a working OenMV H7. Sorted!! Thanks for your help! [issue3]

Interesting… Yeah, there’s still ST’s DFU system. Which board do you have? The IDE should be able to recover it for you. If this is Arduino’s Portenta then that’s a little more tricky.

Sorry should have made that clearer. It’s an OpenMv H7 “normal”.

Okay, so, you have the camera in DFU mode? Then click connect and go through the normal dialog about the board being bricked, select the board type, and then click cancel on the normal bootloader connect window. The IDE will then ask if you want to try DFU mode, say yes, and then follow the prompts…

Yup DFU mode. I can only get DFU Util to open as per the screen grab… I go to: Connect → No Cams found OK → Do you have a Cam connected, is it bricked? YES → Select OMV H7 OK → Erase Internal YES → Reconnect / Hit Cancel to skip to DFU CANCEL → Unable to connect to normal bootloader O…

Huh, I thought I changed that to use DFSE. Okay, See the IDE install folder, share/qtcreator/dfuse/dfusedemo The app should find your camera attached when it’s in DFU mode. Then use the upgrade/verify area in the gui to choose the share/qtcreator/firmware/openmv4/bootloader.dfu to repair to the or…

Just load the bootloader.dfu file then. So, what’s happening is that you have the latest REV V silicon. ST broke their own DFU Util and dfu-util with that chip. You can only load the bootloader.dfu to the first sector of the chip’s flash and then using that you can use our IDE’s regular bootloader…

H7 Boot Loop with green light & no DFU recovery available

OpenMV Boards

lewsut November 2, 2022, 8:00pm 7

Tried that looked into the ST community can’t find much. Basically I get stuck at 49% erase every time no matter how long I wait…

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H7 Boot Loop with green light & no DFU recovery available

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