I think people are reading too much into an ambiguous statement. It says: >At 05:41:46, the Captain asked the First-Officer if the trim is functional. The Fir

I think people are reading too much into an ambiguous statement. It says: >At 05:41:46, the Captain asked the First-Officer if the trim is functional. The First-Officer has replied that the trim was not working and asked if he could try it manually. The Captain told him to try. At 05:41:54, the First-Officer replied that it is not working. "Manually" here could mean manual electric control. 8 seconds seems an awfully short time for the Captain to ask if trim is functional, FO to say no and ask to try manual, Captain to say Yes, and for the FO to try the wheel and conclude it's not working.