Hello. I builded firmware(Copter-4.5.7) for copter MambaF405v2 and speedybeef4v3. On SITL all stuffs works- I get information from MPU 6050 to raspberry and raspberry sends these to sitl and I see my pitch, roll, yaw. Before this I created my files for my external AHRS as AP_ExternalAHRS_VectorNav.cpp and other. All works good in simulator. But than I loaded this firmware on MambaF405v2, set AHRS_EKF_TYPE = 11 (my number AHRS) but cannot see a parameter EAHRS_TYPE in the qgroundcontrol parameters. Why on simulator all is good but on the real dron no? maybe its does not work on the week boards(has just 1MB flash memories)? maybe its just work on the better boards? or something other reasons?th, for your help and tips.