The XBASE 999 has got an update to OS 1.31:
XBASE 999 OS History
1.01 Dynamic mutes (noise gates) on the instrument outputs
1.02 Bank switching added for scale/laststep prereading on pattern change look ahead
1.03 Fixed midi out note triggers added
1.04 Midi Engine improved, Trigger/Clock Enable
1.05 Programmable Midi Tracks added
1.06 flash sample upload during normal operation possible
1.07 Fiter Mutes added
1.08 Clap Decay last value bug
1.09 Toms Pattern Mode Tune Display bug
1.10 Pattern number display during running sequencer
1.11 A/B edit copy to B when pattern was initialized and B pattern was never selected
1.12 A/B Pattern running corrected, Last Step limited to 16
1.13 Sng Mode basics
1.14 Record Realtime
1.15 Record Kit change, Tempo Change
1.16 Menu Song Mode Editable
1.17 Init function Main menu only Kit init, master reset with magic code 3/shift/enter/write
1.18 Song Edit menu new structured
1.19 Step programming with write and preloads completed
1.20 Song Mode implemented, midi clock sync adapted to Song Mode
1.21 Wrong characters in display, communication with panel cpu
1.22 BD semitones SEM flag didn't work, now with LFO and in Pattern mode
1.23 Midi Start/Stop suppressed when tx clock disabled
1.24 SysEx reception display and redraw after finish, edit step redraws fixed
1.25 Editget sample number redraw with cursor move, sample select CC 63,70 added
1.26 Filter CCs 85-93 added; all controls by midi possible, any routing
1.27 Song Loop mode added; full Velocity on internal play
1.28 Pan CCs added, Mute CCs added
1.29 4 banks sysex rcv
1.30 Edit steps and 1st_trckselct bug
1.31 Midi sync step set bug

Click on the XBASE 999 product area and entirely scroll down to download the midi file.
PC users please right click the mouse and select "save target as...".
MAC users: hold "Alt" key and select target to store the file to.