7 Troubleshooting
SMA Solar Technology America LLC
User Manual STP50-US-40-BA-en-10 57
Updating Firmware via the User Interface
Requirement:
☐ An update file with the desired inverter firmware must be available. The update file is, for
example, available for download on the product page of the inverter at www.SMA-Solar.com.
Procedure:
1. Activate the user interface (see Section4.1, page19).
2. Log into the user interface (see Section4.2, page22).
3. Select the menu System Configuration.
4. Select [Settings].
5. In the context menu, select [Updating the firmware].
6. Follow the instructions in the dialog.
Updating the Firmware via USB Flash Drive
Requirement:
☐ A USB flash drive with maximum 32GB and file system FAT32 must be available.
Procedure:
1. Create an "UPDATE" folder on the USB stick.
2. Save the update file with the desired firmware in the "UPDATE" folder on the USB flash drive.
The update file is, for example, available for download on the product page of the inverter at
www.SMA-Solar.com.
3.
DANGER
Danger to life due to high voltages
• Disconnect the inverter from any voltage sources and open the enclosure lid of the DC
Connection Unit (see the inverter installation manual).
4. Insert the USB flash drive in the USB port on the communication assembly.
5. Commission the inverter (see inverter installation manual).
☑ During start-up phase of the inverter, the desired firmware is being installed.
6.
DANGER
Danger to life due to high voltages
• Disconnect the inverter from any voltage sources and open the enclosure lid of the DC
Connection Unit (see the inverter installation manual).
7. Pull the USB flash drive out of the USB port.
8. Commission the inverter (see inverter installation manual).
9. Call up the user interface of the inverter and check the events to see whether a firmware
update has been successfully completed.
10. If the firmware update has not been successfully completed, perform the firmware update
again.