Hello Everyone,
I attempted to get a new game installed on the My Arcade Contra Micro (https://www.amazon.com/My-Arcade-Playable-Collectible-DGUNL-3280/dp/B0845TDGL6?th=1). It is an RK3128 device, and it gave up an image dump with rkflashtool-6.1-win32-bin as detailed by this blog post from 2021...