Hollyland mars 400s pro can’t update firmware in this version. Massage: It’s not supported in this version. Please translate some of the content in the app information to English. Love the RTMP streaming function in the app. Perfect for wireless stream to OBS and other stream application. You will need a RTMP server software on your computer. Together with the Belkin POE Ethernet adapter for lighting it’s a perfect combination with the Sony A1, Mars 400s Pro and a iPhone/iPad. (WiFi to Mars and Ethernet cable for internet and charging).