Business version 0423.1410 for device model:
UC2000-VE-B
UC2000-VF-B
UC2000-VG-B
04231410.tar.gz used to upgrade firmware on web GUI
04231410.ldf used to upgrade firmware on system error page

Normal version   0223.1410 for device model:
UC2000-VE
UC2000-VF
UC2000-VG
02231410.tar.gz used to upgrade firmware on web GUI
02231410.ldf used to upgrade firmware on system error page