Siemens SIMATIC NET SCALANCE W774-1 - Firmware Update Via WBM or CLI Not Possible

Upkeep and maintenance
6.3 Firmware update via WBM or CLI not possible
SCALANCE W774-1 /W734-1
52 Operating Instructions, 07/2020, C79000-G8976-C325-14
To reset the device to the factory defaults during the startup phase, follow the steps
below:
1. Turn off the power to the device.
2. Loosen the screws of the cover.
3. Remove the cover.
4. Press the reset button and reconnect the device to the power supply while holding
down the button.
5. Hold down the button until the red error LED "F" stops flashing after approximately 10
seconds and is permanently lit.
6. Release the button and wait until the fault LED "F" goes off.
The device starts automatically with the factory settings.
7. Close the cover (tightening torque 0.8 Nm), to ensure that the device is closed and
water and dust proof.
With SINEC PNI
Follow the steps below to reset the device parameters to the factory settings with the
SINEC PNI:
1. Select the device whose parameters you want to reset.
2. Click the "Reset device" button.
3. Select the "Reset to factory settings" option in the following dialog.
Via the configuration
You will find detailed information on resetting the device parameters using the WBM and
CLI in the configuration manuals:
• Web Based Management, section "Restart"
• Command Line Interface, section "Reset and Defaults"
6.3 Firmware update via WBM or CLI not possible
Cause
If there is a power failure during the firmware update, it is possible that the device is no
longer accessible using Web Based Management or the CLI.
When pressing the button, make sure you adhere to the instructions in the section
"Reset button (Page 24)".