Interesting for sure. I just downloaded 1.0 payload.bin from the archive site again and then ftp'd the one from my switch. Dates are different obviously, however, the sizes and checksums are identical.Good idea. I forget what their website address was now though lol
I already have one payload.bin of theirs, but I think that was just to inject the license code or something. And of course I have the latest boot.dat file.
Update: found it
SX Loader 1.0 (payload.bin) is what I already had (from TegraRcmGUI)
Launching from latest Hekate, just goes back to Hekate
You absolutely have the right file!