Regarding the display, fixing dtb and dtbo does not solve the problem. In the kernel, the drivers use a default value of 120Hz, which leads to the connection of DUAL DSI drivers. It is possible to fix the frequency to 104Hz or 90Hz only if you have the kernel sources
[ 2.111492] [drm:dsi_display_set_mode] [msm-dsi-info]: hactive= 2944,vactive= 1840, fps=120 map220v/android_kernel_xiaomi_nabu@90b9169