Changing the WiFi password in an SMA inverter with QR code

To log in, select the user group 'Installer,' and as the password, either use : the four digits of your postal code followed by the letters in uppercase, an underscore, and lowercase 'zf' (for Zonnefabriek), which should look something like this: 1234AB_zf. In some cases we had to add a zero in front, so then you can try something like: 01234AB_zf. Or (for installations dating from before September 2019) only the 4 digits of your postal code (without the letters). Then click 'Log In.'

Start the 'Installation Assistant' (sometimes called: 'Installation Wizard')

The next step is 'Network Configuration.' Scroll down and click on WLAN. WLAN stands for 'Wireless LAN,' which is the same as Wi-Fi (LAN stands for Local Area Network).

You will see a list of all available Wi-Fi networks. One of the networks should be the network from your new router. (If this new network is not listed, you can perform a 'WLAN scan' via the button at the bottom of the page.). Click on the cog wheel next to the correct Wi-Fi network

A pop-up box appears with the words 'WLAN settings': Click on that box

Enter your new Wi-Fi password and then click on the 'Connect to WLAN' button

If all went well, the status of the Wi-Fi connection will have changed to 'OK', with a green check mark next to it

Scroll down to where you see a box on the right saying 'Save and Next'. Click on it

On the next few pages you don't have to change anything. Just look for the 'Save and Next' or 'Next' box on each page and click on it. In the end you will get to a 'Summary' page. Scroll down until you get to the box that says 'Next' and click on it.