diff --git a/rc-service/rc-service-other/other-infrastructure/src/main/java/com/red/circle/other/infra/database/rds/service/user/device/impl/LatestMobileDeviceServiceImpl.java b/rc-service/rc-service-other/other-infrastructure/src/main/java/com/red/circle/other/infra/database/rds/service/user/device/impl/LatestMobileDeviceServiceImpl.java
index 1ea800e6..30cef1be 100644
--- a/rc-service/rc-service-other/other-infrastructure/src/main/java/com/red/circle/other/infra/database/rds/service/user/device/impl/LatestMobileDeviceServiceImpl.java
+++ b/rc-service/rc-service-other/other-infrastructure/src/main/java/com/red/circle/other/infra/database/rds/service/user/device/impl/LatestMobileDeviceServiceImpl.java
@@ -346,7 +346,7 @@ public class LatestMobileDeviceServiceImpl extends
     sb.append(getIpPrefix(device.getIp())).append("|");
     sb.append(Objects.nonNull(device.getBuildVersion()) ? device.getBuildVersion() : 0);
 
-    return DigestUtils.md5DigestAsHex(sb.toString().getBytes(StandardCharsets.UTF_8));
+    return sb.toString();
   }
 
   /**