Huawei runs a closed beta program for the sun2000-6ktl-m1 firmware . Invited participants (usually large installers) get access to features 3-6 months early:

Bookmark the official Huawei support portal, set a reminder to check for updates every quarter, and treat each firmware update with the same respect you’d give to a safety inspection. Your SUN2000-6KTL-M1 will reward you with silent, reliable, and legal energy production for a decade to come.

You cannot know what to update unless you know what you have. There are three ways to check the firmware on your SUN2000-6KTL-M1.

As of early 2026, recent stable firmware releases for the SUN2000-M1 series include: SUN2000MA V100R001C00SPC172