cannot flash firmware.bin and cannot update bootloader?

[spikar85]

I’m reaching out for assistance with my BTT Octopus Board. I’ve been encountering some issues flashing the firmware.

Specifically:

When attempting to flash firmware.bin via the SD card, the file does not seem to change to FIRMWARE.CUR.
I've tried different SD Cards... same issue.

A suggestion from an online forum indicated that this might be related to the bootloader.

I followed the steps outlined in the DFU update guide to update the bootloader (link: DFU Update Bootloader Guide). However, I am now unable to establish a connection via USB-C. Despite trying multiple USB cables and ports, I keep receiving a "No DFU Detected" error.

Could you provide guidance on the following:

• Any troubleshooting steps for the "No DFU Detected" issue?
• Possible reasons why the firmware is not switching to FIRMWARE.CUR?

https://i.postimg.cc/bY67hf5r/PXL-20240823-235137970-MP.jpg
https://i.postimg.cc/c4rV15qm/Screenshot-2024-08-24-100755.png

[takemeplaces]

I have had the exact same issue twice now. I started with an F446 and now a H7 pro. Was able to flash the bootloader from Bigtreetechs Github for this. still showed usb port correctly. flashed firmware via sd card. nothing changed and no change from Bin to CUR. flashed via STM Programmer and now am unable to comm to the card entirely.