ZM-2 rumble module - how to start? [video] July 01, 2021 17:01 Updated here's a video covering ZM-2 rumble module for OP–Z: download the latest OP-Z firmware, available here. read the ZM-2 rumble module user guide and follow the installation instructions. now turn it up and feel the beat. Related articles oplab module ZM–1 - installation and sequencing [video] OP-Z + OP-1 - can i sync them? [video] can i purchase a replacement battery from teenage engineering? oplab module ZM–1, how do i use it to send and receive cv/gate/midi/trig/po sync? OP–Z app compatibility status, bluetooth, ios, mac and android.