Originally Posted by
Albino
[ [Stab trim cutout switches.] Turned back on again contrary to advice (accept this is speculation at present) and the system was allowed to trim forward again.
Unless I misread the preliminary report, it appears that the "advice" that was followed was that of the FO, who advised that manual operation of the trim wheels was not possible. It's fairly easy to understand why the crew decided to flip those switches back on (if they did).