This seems to be a bug in the wiki.
I’ll notify support -
Please be patient…
Support send me files.
For me it’s now OK to try the tutorial.
But maybe it will be good to correct the wiki 
I’ll tell you if it work for me as soon as possible. I need a solder tool
Hello
So, with all I need, I tried the tutorial today.
I connect my camera to my PC (via usb).
I config the tera term program according the tutorial but after config the serial port the tutorial say „The program should now automatically lauch the mainboard loader“ but for me nothing appear 
Maybe it’s my connections?
I don’t know if the camera should be electric alimented? But I tried both with and without.
Tried reboot, reset, …
???