Thanks bro for the logcat and explanationYou´re right bro!!
But in this case, system can´t run properly without status bar service, so immediatly after we kill its pid, system attempts to start it with major priority, see logcat:
First two lines are proccess killed by RestartSystemUI.apk, others ones (red) are the system trying to restart it by itself, all in the same second. So if the SystemUI is delaying to restart, probably the system is with a high load of background data to process just before!!![]()
So that means nothing will change even if we try to start it or not. And we have to wait.