Upkeep and maintenance   
5.2 Firmware update using WBM not possible 
  SCALANCE SC-600 Web Based Management (WBM) 
350  Configuration Manual, 10/2021, C79000-G8976-C475-03 
Solution 
You can then also transfer firmware to the device using TFTP.  
Follow the steps below to load new firmware using TFTP: 
1.  When starting up press the SET button. 
2.  Hold down the button until the red fault LED (F) starts to flash after approximately 3 
seconds. 
Note 
If you hold down the SET button for approximately 10 seconds, the device is reset to 
its factory settings.
 
3.  Now release the button. The bootloader waits in this state for a new firmware file that 
you can download by TFTP. 
you want to exit the bootloader without making changes, press the SET button 
briefly. The device restarts with the loaded configuration.
 
4.  Connect a PC to the device over the Ethernet interface (P0.1 - P0.6). 
5.  Open a DOS box, change to the directory where the new firmware file is located and 
then execute the command "tftp -i <ip address> PUT <firmware>". As an alternative, 
you can use a different TFTP client. 
If you are not sure that the IP address is correct, you can check this, for example with 
SINEC PNI.  
 
If you want to access TFTP in Windows 7, make sure that the corresponding Windows 
function is enabled in the operating system.
 
Result 
The firmware is transferred to the device.  
Note 
Please note that the transfer of the firmware can take several minutes. During the 
transmission, the red error LED (F) flashes.
 
Once the firmware has been transferred completely to the device, the device is restarted 
automatically.