diff --git a/patches-mt7981-21.02.3/0004-diag-support-status_led_breathing.patch b/patches-mt7981-21.02.3/0004-diag-support-status_led_breathing.patch
new file mode 100644
index 0000000..5631d82
--- /dev/null
+++ b/patches-mt7981-21.02.3/0004-diag-support-status_led_breathing.patch
@@ -0,0 +1,51 @@
+From 30c15d4e46f1f722a069cb51ed061241a5a03fb8 Mon Sep 17 00:00:00 2001
+From: Jianhui Zhao <jianhui.zhao@gl-inet.com>
+Date: Wed, 22 Jun 2022 10:10:07 +0800
+Subject: [PATCH] diag: support status_led_breathing
+
+Signed-off-by: Jianhui Zhao <jianhui.zhao@gl-inet.com>
+---
+ package/base-files/files/etc/diag.sh           | 2 +-
+ package/base-files/files/lib/functions/leds.sh | 9 +++++++++
+ 2 files changed, 10 insertions(+), 1 deletion(-)
+
+diff --git a/package/base-files/files/etc/diag.sh b/package/base-files/files/etc/diag.sh
+index 37a8ec758e..3934fd7f99 100644
+--- a/package/base-files/files/etc/diag.sh
++++ b/package/base-files/files/etc/diag.sh
+@@ -41,7 +41,7 @@ set_led_state() {
+ 			status_led_restore_trigger "boot"
+ 		[ -n "$running" ] && {
+ 			status_led="$running"
+-			status_led_on
++			grep -q pattern "/sys/class/leds/$running/trigger" && status_led_breathing || status_led_on
+ 		}
+ 		;;
+ 	esac
+diff --git a/package/base-files/files/lib/functions/leds.sh b/package/base-files/files/lib/functions/leds.sh
+index a7532faa2f..0a27f617d2 100644
+--- a/package/base-files/files/lib/functions/leds.sh
++++ b/package/base-files/files/lib/functions/leds.sh
+@@ -43,6 +43,11 @@ led_off() {
+ 	led_set_attr $1 "brightness" 0
+ }
+ 
++led_breathing() {
++	led_set_attr $1 "trigger" "pattern"
++	led_set_attr $1 "hw_pattern" "0 1000 255 3000"
++}
++
+ status_led_restore_trigger() {
+ 	local trigger
+ 	local ledpath=$(get_dt_led_path $1)
+@@ -92,3 +97,7 @@ status_led_blink_failsafe() {
+ status_led_blink_preinit_regular() {
+ 	led_timer $status_led 200 200
+ }
++
++status_led_breathing() {
++	led_breathing $status_led
++}
+-- 
+2.25.1
+