diff --git a/programs/sxmo_screenlock.c b/programs/sxmo_screenlock.c
index b802593..791511f 100644
--- a/programs/sxmo_screenlock.c
+++ b/programs/sxmo_screenlock.c
@@ -145,13 +145,20 @@ configuresuspendsettingsandwakeupsources()
 		"enabled"
 	);
 
-	// Enable IRQ wakeup source
-	fprintf(stderr, "Enable irq wakeup source\n");
+	// Enable IRQ wakeup source (incoming call) 5.8
+	fprintf(stderr, "Enable 5.8 IRQ wakeup source\n");
 	writefile(
 		"/sys/devices/platform/gpio-keys/power/wakeup",
 		"enabled"
 	 );
 
+	 // Enable IRQ wakeup source (incoming call) 5.9
+	fprintf(stderr, "Enable 5.9 IRQ wakeup source\n");
+	writefile(
+		"/sys/devices/platform/soc/1c28c00.serial/serial1/serial1-0/power/wakeup",
+		"enabled"
+	 );
+
 	// Enable rtc wakeup source
 	fprintf(stderr, "Enable rtc wakeup source\n");
 	writefile(