Hi George,
I can see that you used Windows to format the card
The tell tale sign is the "System Volume Information" folder.
The fnirsi_1013d_scope.html file is indeed the mystery of what you have done. It is a web page. Not needed for this quest.
Best is to first see if the card works in the scope. Just stick it in the SD card slot and power up the scope. If all is well it starts up normally. Do a picture or waveform save on the scope. When it works as normal, turn it off again and go back to the linux machine with the SD card. There should be a couple of new files on the card, made by the scope.
Then it is time to do the needed steps.
Check with "lsblk" if the SD card is still attached to /dev/sdb. (You probably used "sudo fdisk -l" to list the partitions in your screen shot?)
Then open the github repository that contains the binary needed for the backup (
https://github.com/pecostm32/FNIRSI-1013D-1014D-Hack/blob/main/Test%20code/fnirsi_1013d_firmware_backup/Binaries/fnirsi_1013d_fwb.bin)
Download it and open the download folder to see if it is there. Then change your path in the terminal window to where the file is. (cd Downloads)
Now comes the part to load the code onto the SD card. But first it has to be unmounted.
sudo umount /dev/sdb1
Be aware that this is with the 1 at the end indicating the partition. And this is assuming it is at /dev/sdb. It can also be /dev/sdc, /dev/sdd, etc.
Then the file has to be copied onto the SD card, but to a dedicated sector.
sudo dd if=fnirsi_1013d_fwb.bin of=/dev/sdb bs=1024 seek=8
This is done to the device not the partition, so no 1!
And that is all there is to it. Insert the card into the scope and turn it on. You should get what I show in the video I posted before. At the end the needed files are on the SD card. You can use either the scope with the USB connection or your SD card /reader/writer to get them onto your computer. This part can also be done under Windows if you prefer.
Let me know how it goes.
Peter