Lumens Technology DC170 Firmware Upgrade Instruction - Manual (Page 2)

DC170/ PC170 - Firmware(FW) Upgrade Instruction
3. Insert SD card into the SD card slot.
4. Power on the unit and access the service menu

Please use Keypad to call the “Service Menu”.
 Press “Enter”(do not release), then press” Zoom+”, hold both buttons in a second,
then the “Service menu” will be shown on screen as following picture.
Service Menu：Press
“
Enter
”
+
”
Zoom+
”
in sequence
1
.
2
.