do you use fingerprints?
can you post your "show customized options" ? it's in menu -> other options -> debug
fingerprints, didnt even know about it, and its enabled i guess by default, as i didnt enable it.
Just started HFS this morning and already i got the error message up, and i didnt select selftest. literally within 1min. same message as before
all i did was turn off fingerprints,
it seems it trying to selftest without me actually selecting that option