Hate to revive an old thread but I was a long time user of SX OS until it died and I switched over to Atmosphere.
The first few versions of Atmosphere booted just fine. I would use my SX OS dongle to boot up, click on 'payloads' I think and pick 'fusee' and away it went.
A few versions of Atmosphere ago, I started getting these 'tsec_keygen' errors and would just hit the power button and the Switch would boot into Atmosphere. All my games and home brew apps would work just fine so I didn't think much of it. I still don't but I would like to correct this error.
Searching for an answer, I found this thread here and
this one and
another.
Absolutely nothing I tried in these threads fixed it. None of the editing I did on the Hekate ini file mattered. My last ditch effort was using my SX Pro dongle to launch Hekate and from there, I launched fusee and same error.
I'm using Atmosphere 1.3.0 and I'm on Switch firmware v14 and my Switch is a launch unit.
Any ideas?