bit late for a full reply, so this is quick...
check those endstops. Normal setup is if the switch is open or disconnected, it is treated as triggered and will stop movement in that direction.
re the vref, it only spins 360 degrees, so spinning it a number of revolutions doesnt help anything.. (most have stops so they only move about 270 degrees)
put it back to mid position for now (there should be a flat edge, make sure thats pointing away from the legs)
Put all 3 jumpers on the microstepping jumpers
check those endstops. Normal setup is if the switch is open or disconnected, it is treated as triggered and will stop movement in that direction.
re the vref, it only spins 360 degrees, so spinning it a number of revolutions doesnt help anything.. (most have stops so they only move about 270 degrees)
put it back to mid position for now (there should be a flat edge, make sure thats pointing away from the legs)
Put all 3 jumpers on the microstepping jumpers