diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huami/amazfitgtr4/AmazfitGTR4FirmwareInfo.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huami/amazfitgtr4/AmazfitGTR4FirmwareInfo.java
index a9301de106..d8c18303f1 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huami/amazfitgtr4/AmazfitGTR4FirmwareInfo.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huami/amazfitgtr4/AmazfitGTR4FirmwareInfo.java
@@ -28,6 +28,7 @@ public class AmazfitGTR4FirmwareInfo extends Huami2021FirmwareInfo {
     private static final Map<Integer, String> crcToVersion = new HashMap<Integer, String>() {{
         // firmware
         put(1699, "3.17.0.2");
+        put(20712, "3.18.1.1 (diff from 3.17.0.2)");
     }};
 
     public AmazfitGTR4FirmwareInfo(final byte[] bytes) {