Get code off of an old Electron

If I have an older Electron, that I am not able to connect to the Cloud IDE or Internet/GPS, is there a way to get the code off? I used an old Electron years ago, then lost it and recently found it. I have some code that I would like to get from the device. Is there a way to connect via USB and retrieve that programming code? If so, what are the steps? I wasn’t the original owner of the device; however, I did write the code. Thanks in advance.

The original C/C++ source code is not stored on the device.

While you could extract the binary off the device in DFU mode (blinking yellow), there isn’t a good way to convert that back into anything near the original source code.


What would be the steps to extract the binary? Once in DFU mode while plugged into USB, how would I connect to get the information?

You need to use the dfu-util application. It is installed by the Particle CLI.

For the Electron it should be:

dfu-util -d 2b04:d00a -a 0 -s 0x8080000:0x20000 -U firmware.bin
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