Yeah that's exactly what it looks like.
FWIW, when I run the RCMLoader it Connects (green), downloads the file (green PASS message), and then restarts the device but when it comes back up Windows doesn't recognize the device. It's probably because it tried to write a 2M image to a 700K partition and threw up.
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See pics above...I have the entire thing open and full access to everything. I can certainly unsolder the + wire.
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Removed the + line for 30 seconds. Soldered it back. It seemed to do nothing when I plugged it into the PC. No signs of life at all. No USB recognition on the PC side either. Was able to get back to what I assume we both believe is DFU mode by holding the + button and plugging it back in. I'm back to square one. I'm going to read up on DFU...aside from resetting Apple devices, I've not messed with it much.
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So I know more about DFU than I did 20 minutes ago.
This article was very helpful:
https://web.archive.org/web/2022122...10/emulating-usb-dfu-to-capture-firmware.html
Instead of dragging others into trying to dump firmware in DFU mode, I think I’m going to wait and risk my own when it comes in the mail.
Fortunately my logs show the VID/PID and expected folder location so maybe I can emulate a device and dump the firmware.
https://web.archive.org/web/20200618043250/http://dfu-util.sourceforge.net/
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Last update for the night…was able to pull the software and build it on my rPi. It looks like I have a legit way to up/down load firmware via DFU when my device arrives. Will update when I know more.
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Did you manage to unbrick any RCM Loader's that had been wiped of their volume/partition?