When the RECORD, STREAM, VERTICAL and BITRATE buttons turn solid white, it indicates that
the NVS-31 MARK IV's factory defaults have been successfully restored.
6.6 Firmware Update
Datavideo usually releases new firmware containing new features or reported bug fixes from time to
time. See the sections
NVS-31 MARK IV's firmware.
System
Firmware Update
or
Appendix 3
for instructions on updating the
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