i.mx6 Boot flashing Red screen

/************************************************************************** * i.mx6 boot flash Red screen * Description: * This document i.mx6 the phenomenon of flashing red screen, of course, this is only for the solution of emergency solution, because there is no need for Android boot screen. * 2016-4-19 Shenzhen Nanshan Ping Shan village Zengjianfeng ******************************************************** *****************/First, reference: [Experience] "tutorial" Boot automatic execution script, no need for software init.d!  -%Success! http://www.miui.com/thread-1054211-1-1.htmlsecond, the phenomenon: the display in Linux kernel but to the Android stage appeared a very short time red screen, three, thinking:1. Observe the debug port output information, the red screen appears after the init of the Android layer executes;2then try to add the control code directly in the Init.rc, and find that it is not possible;3. So the data found can be used/system/etc/install-recovery.sh;3. So in/system/etc/install-recovery.sh Add the backlight to the darkest; Iv. solution: [Email protected]:/# cat/system/etc/install-recovery.sh #!/system/bin/SH echo0>/sys/class/backlight/pwm-backlight.1/brightness [email protected]:/ #

i.mx6 Boot flashing Red screen