I unfortunately am stuck in the same loop I've been in since getting the Mavic. I have never had a firmware take. The RC will, but the mavic just fails each and every time. I had restored factory defaults, I've tried with the app, I'm now using the assistant. Literally just failed again while I was typing this message. There goes attempt 3. What am I doing wrong?
Advice : worked for me, have been failing 17 times. all failed. Changed USB cable for a basic one (no platimium edition, or short edition) ... worked straight away. Keep battery 100% charged
 
				
		 
			 
										 
  
 
		
 
 
		
 
 
		 
 
		 
 
		 ).  I updated via DJI  Go4. I noticed it stopped for about 10 minutes or a bit more at about  83 % but then finished in about 40 minutes with no action from me.  Did some test flights and it all looks good.
).  I updated via DJI  Go4. I noticed it stopped for about 10 minutes or a bit more at about  83 % but then finished in about 40 minutes with no action from me.  Did some test flights and it all looks good. 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
 
		 
  
  
  
  
  
  
  
 
		