Extron 4K SW HDMI Plus firmware update.
You will need an account on Extron to download firmware file. Firmware will need your -wa account to install.
- Configure Ethernet port of laptop to reflect IP: 192.168.254.100; Subnet: 255.255.0.0.

How to manually configure IPv4: https://support.microsoft.com/en-us/windows/change-tcp-ip-settings-bd0a07af-15f5-cd6a-363f-ca2b6f391ace
2. Connect an ethernet cable from laptop to LAN port on Extron 4k switch.

3. Open a hyperlink in browser to http://192.168.254.254.
Username: admin
Password: extron
4: Scroll down page until Firmware. Click button and select firmware file. Click file to upload.
Once finished, close browser.