I need exactly EKF2. I am currently using EKF3. I am trying to switch (AHRS_ELF_TYPE = 2) to EKF2. Then I send the parameters to the Mission Planner and reboot the flight controller. But after rebooting, it’s still AHRS_EKF_TYPE = 3. I also tried to set EKF3_ENABLE = 0 first, but the same thing. In addition, there are no parameters in the Parameter List that relate to EKF 2. What am I doing wrong? Maybe there is still some setting?