why nav pid are reseted to 0

my board doesn't keep nav PID (pitch as & pitch alt)in arduplane 3.1.1,when the board is initialized ,those parameters are reseted,i haven't found an answer anywhere ...

how to fix this problem ?

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  • Developer

    babz,

    The only thing that I know of that could cause this problem is a full EEPROM.  Did you tr to reload all the parameters from a file or something?  Doing this can cause the eeprom to fill up because we don't actually have enough space in eeprom to store unique values for all parameters.

    if you reset all parameters to their defaults (there is a button on the right side of the Full Parameters list in Mission planner), reboot the board and then try changing the values do the values stick?

    • in the mac version of APM planner,there is no button to do a reset...

      what can i do at all ?

      • Developer

        another option is to go to the Mission Planner's terminal screen, the connect, "setup", "reset", "Y".

        • i've done that...erase...reset...

          the problem is still here :(

          i tried in the windows version with parallel and there i can't see nav pitch AS & nav pitch ALT,why?

          • it looks like eeprom can't be reseted...

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