Stuck at <waiting for device> in

Hi, I’m new here. Trying to flash in the binaries with a new board, but after I run

The process just stopped in the middle and I’ve waited for an hour, nothing happened

downlaod address 0x16800000
Finish downloading
Flashing ptable 
< waiting for device >

Any idea how to work around? or did I miss something?

Why would you use on a working board? Where exactly did you obtain it?