When restoring a parameter backup previously saved, do you need to redo:
- Accel calibration?
- Compass calibration?
- Radio calibration?
If you use mavproxy you can use forcecal to avoid the first 2. 3. is not necessary
Thanks Andy. So if you use mission planner to restore the backup, you have to redo 1, 2 and 3? Lucky I ask cause I was only doing 1 and 2 in the past.
If you have a param file you wish to restore, or extract one from a .bin log file, use a text editor to strip out all the things that are unnecessary to restore and just keep all the tuning parameters you would have modified.
With this step, I assume we still need to redo 1, 2 and 3?
Yes, If they are not done already, like a new build or total reset.
If you are just restoring some tuning params to the same copter then you wouldnt need to.
EDIT
I also meant to say, if you restore any ENABLE parameters, you have to load the parameter file twice to reinstate all the additional params that appear when you enable some feature.
Yes. Good point. Will the Refresh Params button do the same thing to reinstate all the additional params that appear when you enable some feature?
Just hitting refresh wont make the desired params actually get written to the FC, but you can refresh just to see they are all there ready and waiting to have the restored values written into them.
You still have to load the param file again to restore those “enabled” parameters to their desired values.
Also you can always use Compare to check what the flight controller has (or is loaded into MissionPlanner) against what is saved in a param file.
And of course Write to the flight controller.
Hi everybody. I am pretty new with calibrations and drones. Could you explain in details how to restore parameters from previous good flights to new default parameters. Thank You
If you have the param file you want to use you can use the compare function in Mission Planner.
https://ardupilot.org/planner/docs/mission-planner-configuration-and-tuning.html#full-parameter-list
If you don’t already have the param file, do you at least have a .bin log file from the good flight? Then you can use Mission Planner to review the log and save the parameters from that file.
Hi Allister,
First I have to tell you Huge thank You. I was ready to go and manually update all 1010 parameter lines. Some smart people rally put some serious though when they design MP.
I had setup all my params before however, due to last crash I had to review all my setups and apparently all my PIDs are wrong without notch for vibrations, vibrations and ESC are apparently other issues. So I start using Ardupilot configurator and obviously F… all Params 
. So I had to reset all default params and I do have bunch of good logs on FC. Planning to rest last good one and go from there to fine tune this beast drone.