APM 2.6 + APM Planner 2.0 + MAC USB Firmware NO WORKY

[quote=“billbonney”]I missed a defect fix for Qt5.4.x and serial ports (I fixed it for 3DR Radio and PX4 upload). You can download the latest daily build (i.e. 2.0.18 version) with a fix from here

firmware.diydrones.com/Tools/APM … 015-08-04/[/quote]

Hi Bill, I’m having the same problem with a new apm mini board. I’m using 2.0.18 and el capitan. I get the same error and can’t upload the firmware to my board.
I’ve tried different cables, loading and unloading drivers etc. with no success. I even tried it on my other mac with Yosemite and no joy there either.
I’m at a loss how to get the arduplane firmware onto this board. It came preloaded with arducopter.
Any suggestions gratefully appreciated.

Different issue, same symptom :wink:

Try the latest build firmware.diydrones.com/Tools/APM … c5_osx.dmg

See if that helps :slight_smile: I think 18 had an issue with APM.