Failed upgrade (Help!)

OpenMV Products
#1

Not sure what I have done incorrectly but hopefully its recoverable.
Had OpenMV cam working, IDE prompted me to upgrade when openning, clicked on Download and nothing happened. Went to Tools | Bootloader and selected firmware\OPENMV2\bootloader.bin, it then prompted me to disconnect and re-connect, it appeared to upload the firmware. since this it no longer works
When plugged in Green LED flashes 2/3 times, windows does not detect it.
When in DFU mode, windows detects it and I can see in device manager under USB bus controllers its connected as ‘STM Device in DFU Mode’ but there isn’t a COM port associated with it.
Any help to recover this will be much appreciated.

(Using Windows 7)

#2

Yeah, you had to install the firmware.bin file. Sorry about this being confusing right now.

Um, go to the OpenMV GitHub page and then go to the wiki. There’s an article I wrote on how to unbrick your cam using DFU. Use windows, the DFU tool for Mac and Linux doesn’t work.

#3

selected firmware\OPENMV2\bootloader.bin,

The cam can Not be bricked, unless you use DFU to overwrite the bootloader, you just uploaded the bootloader instead of the main app, so now you have 2 bootloaders.

clicked on Download and nothing happened

That just launches the browser to github, it seems it’s not working on Windows. You can download the latest release here:

#4

Thanks to both of you for the quick response, now rectified.
For future (and others) reference the article is…