Thanks for your help!You can only downgrade one version. So, if you install 1.6, you can downgrade to 1.5. If you install 1.7, you can downgrade to 1.6. Etc.
So far I am sticking with 1.4.
Not sure there any real advantages of changing to 1.7
Really? What kind of issue?1.5 has battery measurement problem.
Even DJI say update (or downgrade on that version)
Really? What kind of issue?
I would strongly suggest you move back to 1.4