My Mavic 2 Zoom upgraded the firmware from 0740 to 0790 before. Is it possible to downgrade from 0790 to 0770 anyway?
What is it you are trying to do that needs a downgrade
This will help.
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The Drone-ID can’t be disabled on firmware 790.
Never update a DJI drone without understanding the implications (and then still don’t do it)
You’ll have agreed to it.
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Hi @Josh888Wang, it looks as though you’re quite new here 
Why not nip over to the Introductions page, and say hello properly and tell us a bit about yourself. 
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