I have an old pixhawk 1 i built a plane with it in 2016, is it possible that i can download the current firmware version on it and upload it to another pixhawk 1 ?
No. And why would you want to?
because the person that helped me build that rc plane im not in contact with him anymore, and he built a custom firmware on that pixhawk, thats why i wanted to see if i can download the firmware off it.
Use the Parameters and as a starting point and the latest stable version.
Note: Well, the parameters have changed quite a bit since 2016, even the parameters names. What version was the custom based from?
when i start it with mission planner , this what pops up on the messages
AP_03.0030.1
PX4v2 001A002F 3335510F 32383336
That is running PX4 firmware, not ArduPlane firmware.
You are in the wrong support forum.
Thank you, went to the correct support forum. my apologies