diff --git a/CHANGELOG.md b/CHANGELOG.md
index 80d4d013e..d6028f3ab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@
   - If you used this, need to reflash your VGM and reconfigure the colors
 
 ### Added:
+- Apps:
+  - RFID: T5577 Raw Writer (by @zinongli)
 - Sub-GHz:
   - New Legrand doorbell protocol (#120 by @user890104)
   - Integrate EmosE601x and Acurite 5in1 protocols from WS app (#170 by @htotoo)
diff --git a/applications/external b/applications/external
index 38502d545..7a7f74be1 160000
--- a/applications/external
+++ b/applications/external
@@ -1 +1 @@
-Subproject commit 38502d5459806ade131185712c26ab69b8bafa3d
+Subproject commit 7a7f74be1adbdc8f901c5f92d19460f75f105197