Where is Boot flow screen displayed in android
I have came across Boot flow and when there is based on boot state of a device, it shows different colot screen.
YELLOW: Warning screen for LOCKED devices with custom root of trust set ORANGE: Warning screen for UNLOCKED devices RED (eio): Warning screen for dm-verity corruption RED (no os found): No valid OS found
Let me know where or from which path those screens are displaying?
This is all happen in OEM bootloader (proprietary) before android is started. This screen is displayed before splash screen only in yellow/orange/red state