Default screen orientation modification

Temporary modification method

• System readable and writable

  adb shell setprop persist.sys.root_access 3
  adb root
  adb remount

• Modify or add attribute values

  • Android7.1

    • In the /system/build.prop file, modify or add the value of ro.sf.hwrotation

      • 0：Horizontal screen
      • 90：Portrait
      • 180：Reverse landscape
      • 270：Reverse portrait

  • Android10 and above

    • In the vendor/build.prop file, modify or add the value of ro.surface_flinger.primary_display_orientation

      • ORIENTATION_0：Horizontal screen
      • ORIENTATION_90：Portrait
      • ORIENTATION_180：Reverse landscape
      • ORIENTATION_270：Reverse portrait

    • Android14 also needs to add the following properties in the vendor/build.prop file debug.sf.ignore_hwc_physical_display_orientation=true

• System restart

  adb shell reboot

Code modification method

• Android 7.1:

  In the file device/rockchip/CPU_TYPE/PRODUCT_TYPE/system.prop, modify the value of ro.sf.hwrotation

• Android10 and above:

  In the file device/rockchip/CPU_TYPE/BoardConfig.mk, modify the value of SF_PRIMARY_DISPLAY_ORIENTATION

  • 0：Horizontal screen
  • 90：Portrait
  • 180：Reverse landscape
  • 270：Reverse portrait

• Delete build.prop in the out directory

  rm out/target/product/PRODUCT_TYPE/obj/ETC/system_build_prop_intermediates/build.prop