Approach Tech DVR-3024M - Manual (Page 15)

13
Mode Key Result Display
Quad
(
)
CH1/
CH2/
CH3/
CH4 ( Single channel )
Live /
Record
Seq./
Save
then loop back
Quad
(
)
Playback
CH1/
CH2/
CH3/
CH4 ( Single channel )
2.4 Updating System Software
Please take the following steps to safely update it.
1. Turn off the DVR.
2. Insert the SD card into the built-in SD slot of the
unit.
3. Hold down the Up 12 and Down 13 buttons
simultaneously, and then turn on the unit.
4. Keep holding down the buttons until the DVR
sounds a tone and displays the message
“ XXXXXX BYTES READ”. Now the DVR is
updating the system software, which will take
approximately 90 seconds to process.
5. Restart the unit when the device sounds a tone
twice and displays the message “PLEASE
RESTART”. The process is complete.
(If you have already followed the procedures 1~5,
and the unit is still unable to switch on, please first
check if the SD card you are using is functioning
and the file is intact. And then start procedures 1
~ 5 all over again.)
6. Verify the version of the system software. (Please
refer to the section 4.6 VERSION option.)
!
Caution :
1. Before carrying out the updating procedures, please
ensure the SD card is working and the file of the
system software is intact.
2. Don’t interrupt the process while the unit is updating
itself, as this would cause the unit to hang on.