New user and I’m very noob at hardware components and hardware/OS related programming. But this is a very good post, detailed with valid question. So I’m intrigued over why nobody has been able to answer this post for 6 months.
I have some issues of my own with my Rock 4C+ boards. Mine also sais ROCK 4C PLUS V1.41, but it has SKhynix brand RAM (H9HCNNNBPUMLHR-NEE 132a). I don’t know what Q9517 and D90006 is, but those seems to be present on mine as well.
My boards seems to be similar to your board 1, and yet I’m having some issues with mine when trying to run the official Android 11 images for 4C Plus.
