You'll need to follow icons cuz we don't know Chinese so take a smart phone and follow the same method.
Find Settings, Languages. and then change the language to English(if there's English)
I managed to boot in android on my OPi PC. I takes almost 30 min to boot into chinese start screen. I managed to change the language. But the system is very slow with noticeable lag after mouse click. Where is the problem?
I installed nova launcher and removed all chinese apps. But now I'm missing settings icon. And system is still very slow. Btw, I have class 10 micro sd card.