[Bug] Inconsistent firmware version reporting across App, MQTT, and HA integration

[fellek]

Device

SolarFlow 2400 AC + AB3000X

Description

The firmware version of the SF2400 AC is reported differently depending on the source. This makes it difficult for users and developers to identify the exact firmware version and check for updates.

For the same device at the same time, the following versions are reported today:

SolarFlow 2400 AC

Source	Reported version	Notes
Zendure App	V1.0.19	Single combined version
MQTT firmware/report — MASTER	4128	Integer, decodes to v1.0.32
MQTT firmware/report — AC	4390	Integer, decodes to v1.1.38
MQTT firmware/report — ESP32	8207	Integer, decodes to v2.0.15
HA Integration (device info)	1.0.0	Does not match any of the above

AB3000X Battery

Source	Reported version	Notes
MQTT firmware/report — BMS_AB3000	4106	Integer, decodes to v1.0.10
MQTT packData — softVersion	4106	Matches firmware/report
HA Integration (device info)	v1.0.10	Matches MQTT (correctly decoded)

Questions

1. What is the correct way to decode the integer firmware versions from MQTT? The formula major = v // 4096, minor = (v % 4096) // 256, patch = v % 256 works for BMS (4106 → v1.0.10) but produces v1.0.32 for MASTER (4128), which doesn’t match the app’s V1.0.19.
2. Which MQTT module version corresponds to the app’s “V1.0.19”?
3. Why does the HA integration show “1.0.0” for the SF2400 AC instead of the actual firmware version?

Having a consistent and documented version format across all interfaces would be very helpful for troubleshooting and support. Thank you!