Firmware installation without internet connection on Mission planner

Ground Control Software Mission Planner
1

Hi everyone,
I have the latest Mission planner version (1.3.74) and cannot install firmware without internet connection.
I want to load custom firmware so actually I don’t need the internet.
Does anybody familiar with this issue?
Is there anything that I can do to fix it?

Thanks!

2

Try Legacy firmware install, and just click OK on the error message. It will do custom firmware upload then.

3

Thanks!
I’ll try.
What’s the difference of those two ways?

4

It worked for me!
thanks a lot!

5

sounds like this was an oversight on my part.