Hi.
I bought my Mini 3 Pro online in the main DJI store in Netherlands, still have warranty and DJI care.
Bought it with RC controller and recentrly I got meeself a second hand RC N1 and use it with 11" tablet.

Two questions:
1. How's the warranty and Care working when flying with second hand RC N1?
2. The combo with RC is bound to my account, but to be able to fly with RC N1 I had to switch something on the account. Is there an easy way to switch forth and back between RC and RC N1 depending on my needs?

You just need a wifi/data connection to switch the bindings back and forth,  takes a few seconds.  

Hi there. Thank you for reaching out. Binding each remote controller is required during flight. Your aircraft has DJI Care Flyaway Coverage and if you did not bind the aircraft with the remote controller (used during the said flight) it will result in being unable to use the said coverage in the future. Should you have other inquiries, please don't hesitate to reach us. Thank you.