tauks First some moderation notes: I moved you post to a correct thread - you are certainly not using 7.0 S905 build on a S912 device - and I removed store link from your post.
Secondly, please post original device tree from Android firmware. Then I can take a look.
Sorry for my noob mistakes using the board and thank you for your moderation time. I've been searching a long time where the original device tree from android firmware might be located but couldn't find it. Could you please kindly pinpoint its location or at least give me its name ? Thanks in advance !