How to upgrade UTT 5830G firmware via Cisco TFTP sever:

Step 1: Decompress the rar file
 
 
Step 2: Open the file TFTPSever.exe and keep it open
 
Step 3: Connect to UTT 5830G and open telnet application, telnet to 5830G. (the local computer’s address is 192.168.1.100, the LAN address of 5830G is 192.168.1.1)
 
Username: admin    Password: admin
The current version of the software: ReOS SE UTT 2.6.30.8 lv5830GV3 v1.1.0-121102 UTT 5830G
Step 4: Enter the command: tftp -l DX-3934-IR.img -g 192.168.1.100:69
 
(please pay attention that the firmware name and the address of the local computer should be exactly the same to your environment.)
 
 
Step 5: Enter the command: dd if=DX-3934-IR.img of=dev/sda bs=1M count=100
Press the Enter key after you enter the command, to write the firmware into flash.
 
 
Step 6: Enter the command: reboot
Enter the Enter key to reboot the Device.
 
Then your device will restart, upgrade has been successfully.