https://www.happymodel.cn/index.php/2024/03/23/dump-file-for-mobula6-2024/
Happymodel provides CLI dumps, you'll likely have better luck there
Mobula6 2024 betaflight firmware 4.4.0(default factory version) Dump file for Mobula6 2024 betaflight 4.4.0 Mobula6 2024 betaflight firmware 4.4.2 Dump file for Mobula6 2024 Betaflight 4.4.2 Mobula6 2024 betaflight firmware target:CRAZYBEEF4SX1280