Firmware Hollyland Support March 01, 2023 06:11 Updated Mars 400s Pro has different MCU solutions, V1.1.0.3,V1.1.1.9 and V1.0.2.0 are the latest versions. but all of them are compatible completely For V1.1.X.X(except V1.1.0.3),please upgrade to V1.1.1.9 Date Firmware Version Updates Path 2021-06-04 V1.1.1.9 Fixed another known problem Download Path Upgrade Tutorial 2021-03-01 V1.1.1.7 Fixed another known problem Download Path Upgrade Tutorial For V1.0.X.X,please upgrade to V1.0.2.0 Date Firmware Version Updates Path 2021-04-14 V1.0.2.0 Fixed another known problem Download Path Upgrade Tutorial Related articles UPGRADE Firmware Brochure User Manual Firmware Comments 0 comments Article is closed for comments.