Firmware Upgrade; Language; Logout - Q-See QSD371614C4-250 User Manual

previous event according to input time period if the data hasn't been over-written.
To playback by Event list, using [UP]/[DOWN] or channel number (CH3 for Page Up or CH4
for Page Down) key on the front panel or remote control, select the event that you want to
playback and press "PLAY" button. Another way is to move the mouse up and down or click
the left mouse button ("◄" for Page Up or "►" for Page Down), select the event that you
want to playback and double click the left mouse button. Then it will playback the recorded
video data.

6.5.8 Firmware Upgrade

This menu is for upgrading the firmware of the DVR system through the USB port using a
USB flash drive; you can upgrade the system once you connect the USB flash drive that
contains a firmware file.
[CAUTION]: 1. Do not turn off the system while the system is upgrading. Otherwise, it will
cause the breakdown of the system that will require a special recovery
process.
2. If there is no hard drive installed in the DVR, the system can't be upgrade.
3. In order to upgrade the system you must stop recording.

6.6 Language

Our system supports multiple language OSD (On Screen Display). It includes two types of
language systems (western and eastern). The language used is based on user's
requirements.
On the "Language" menu, you can move the cursor to change it by pushing the "SELECT"
button on the front panel or remote control, and you can also use the mouse by single
left-clicking to select the language.

6.7 Logout

User can use this option to log out of the system.
Operation Manual-4CH Duplex DVR
20