New (to me) Controller

[New to this]

Hi Guys Up to today I have been using the controller that came with my Mavic Air 2 along with my mobile phone but, today I bought a new DJI controller (big birthday present)
I have a couple of questions I hope you guys can help me with,
Can I use the charger that I have been using with the "old" one ?
Is it possible to download apps from play store (Android) eg. Dronecast ?
How do I upload/access maps (with the "old" controller I tapped the corner of the screen)
Thanks guys Please be patient with me I am a total "newby"

 

[THE CYBORG]

I assume you refer to the Smart Controller.
You can download the manual HERE

 

[Repaid1]

Once you confirm the correct name, change the title to Smart Controller help so that those who have one can help you.

If it is a SC, it came with it's own charger. It is much more powerful than a stock charger. Maps work the same.

Apps are a different story, but need to confirm you are indeed talking about a SC.