对初学者很有用：进入Idle过程及键盘锁响应过程的详细描述

IDLE SCREEN键盘锁与解锁
开机函数执行过程（倒过来看）：

EntryIdleScreen() line 3082


BeforeEntryIdleScr() line 5254


mmi_bootup_entry_network_searching() line 1464


mmi_bootup_exit_welcome_screen() line 1390


ShowWelcomeScr() line 5076


exit_custom_startup_screen() line 448


goto_opening_screen() line 419


SimPasswdReqResponse(void * 0x0a890d80 _gSMUPwdDataStruct) line 3950


PowerOnBatteryIndicationCompletePhase2() line 5908 + 10 bytes


mmi_bootup_entry_security_check() line 1311


mmi_bootup_exit_nand_check_query() line 1288


PowerOnBatteryIndicationComplete() line 5974


mmi_bootup_entry_nand_check_query() line 1262


mmi_bootup_exit_low_battery_warning() line 1239


BatteryCheckAfterPowerOnAnimation() line 6012


mmi_bootup_entry_low_battery_warning() line 1213


mmi_bootup_exit_animation() line 1189


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