[modern] Seatback removal

G’day,

I need to remove the back of the drivers
seat on a '94 XJ40 so that I can fix the
headrest which won’t retract.

Does anyone have exact details on how to do this?

Also note that:

I can hear the motor try to run.

I have tried simply pushing down on the head rest
to get it to retract - no luck.

Thanks,
Dave Rogers