5.2.2 Updating the firmware (Firmware Update procedure)
Once the USB stick is ready with the appropriate files, the firmware update can take place. To do so, follow the steps below:
1. Connect the USB stick to the A-type USB port of the CONTROL board at the back of your L1 unit.
2. Turn the unit on if it is in standby mode or powered-off. Navigate to the L1_SETUP>>FACTORY_SETTING menu and select
the UPDATE_FIRMWARE item.
3. Start the Firmware Update process by pushing the OK (R) button.
4. Once the Firmware Update is complete, the unit automatically goes into Standby. Remove the USB stick and wake up the
unit from Standby. The new firmware should now be active. Please note that the unit will perform a Reset (display
turning off and back on) during the procedure.
5. To verify that the Firmware Update was effective, navigate to the L1_SETUP>>FACTORY_SETTING menu and select the
FIRMWARE_VERSION item. Check that the displayed firmware version number matches the version number of the
firmware update image.
Note: The Firmware Update process lasts several minutes (about 5 minutes), do NOT interrupt it!
When performing a Firmware Update, do NOT press any of the unit's front panel pushbuttons, do NOT unplug the unit from the AC
wall socket and do NOT turn the mains power switch off. Interruption of the Firmware Update procedure may result in corrupted
firmware and a non functioning unit. In case something has gone wrong during a Firmware Update and the unit is not functioning
correctly anymore, apply the Emergency Firmware Update procedure described in the next section.
5.2.3 Emergency Firmware Update procedure
Apply the following Emergency Firmware Update procedure if your unit is not functioning correctly after a failed Firmware Update
procedure:
1. Turn the unit completely off by setting the Power on/off switch to off.
2. Prepare and insert the USB key with the appropriate firmware image for your unit (make sure all files are present).
3. Push and keep the STANDBY (S) button pushed while powering-up the unit by setting the Power on/off switch to on.
Keep the STANDBY (S) button pushed until you hear the internal relay click (about a couple of seconds).
4. The unit will start up in Emergency Firmware Update mode and will update its internal firmware with the firmware
images present on the USB stick. Do not interrupt or unplug nor interact with the unit until the Emergency Firmware
Update has completed. This will take several minutes. Please note that the unit will perform a quick Reset (display
turning off and back on) during this procedure.
5. Once the Emergency Firmware Update is finished, the units goes into Standby mode. Remove the USB stick and wake-
up the unit by pushing the STANDBY (S) button. The unit should start-up properly with the new Firmware.
Rev 1.0 L1 User Manual 43
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