Dahua Technology TFTP upgrade instructor User Manual
Tftp upgrade instructor, 1 、 hardware environment & connections, 2 、 tftp upgrade

TFTP upgrade instructor
PROPERTY RIGHTS RESERVED
1、Hardware Environment & Connections
1) For RS232 operation, the devices are as follows:
PC, RS232 Cable, DVR, network cable
If there is only laptop computer, USB to RS232 cable is required.
2) Connection Mode is as follows:
PC --- RS232 cable --- DVR
PC--- through network --- DVR
DVR to laptop computer DVR to pc
2、TFTP Upgrade
1)Unzip the upgrade software to you PC
make sure there are this two files
armboot-x.bin.img
update.img
2) Run TFTP server
A、Run TFTP server:
TFTPServer_En.exe
B、Set the upgrade route in the TFTP server, please see the picture below