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Upkeep and maintenance
6.1
Downloading new firmware using TFTP without WBM and CLI
You can download new firmware to the device using TFTP. To do this, the device does not
need to be reachable either using Web Based Management (WBM) or using the Command
Line Interface (CLI). This can be the case if there was a power failure during a firmware
update.
When pressing the button, make sure you adhere to the instructions in the section "Reset
button".
Follow the steps below to load new firmware using TFTP:
1. Turn off the power to the device.
2. Loosen the screws of the cover.
3. Remove the cover.
4. Press and hold down the reset button.
5. Connect the device to the power supply again while holding down the button.
6. Hold down the button until the red fault LED "F" starts to flash after approximately 2
seconds.
7. Release the button.
The bootloader waits in this state for a new firmware file that you can download using
TFTP.
8. Connect a PC to the device over the Ethernet interface.
9. Assign an IP address to the device using DHCP or the Primary Setup Tool.
10.Open a DOS box and change to the directory where the file with the new firmware is
located and then execute the following command:
tftp -i <IP address> put <firmware file>
As an alternative, you can use a different TFTP client.
Once the firmware has been transferred completely to the device, there is an automatic
restart on the device. This process can take several minutes.
11.Close the cover (tightening torque 0.8 Nm), to ensure that the device is closed and water
and dust proof.
SCALANCE W774-1 /W734-1
Operating Instructions, 01/2017, C79000-G8976-C325-08
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