diff --git a/examples/DiyProIndoorV4_2/DiyProIndoorV4_2.ino b/examples/DiyProIndoorV4_2/DiyProIndoorV4_2.ino
index 644e13a..2d9c4fe 100644
--- a/examples/DiyProIndoorV4_2/DiyProIndoorV4_2.ino
+++ b/examples/DiyProIndoorV4_2/DiyProIndoorV4_2.ino
@@ -71,7 +71,7 @@ static MqttClient mqttClient(Serial);
 static int pmFailCount = 0;
 static uint32_t factoryBtnPressTime = 0;
 static int getCO2FailCount = 0;
-static AgFirmwareMode fwMode = FW_MODE_I_8PSL;
+static AgFirmwareMode fwMode = FW_MODE_I_BASIC_40PS;
 
 static String fwNewVersion;
 
@@ -491,7 +491,7 @@ static void boardInit(void) {
     }
   }
 
-  localServer.setFwMode(FW_MODE_I_8PSL);
+  localServer.setFwMode(FW_MODE_I_43PS);
 }
 
 static void failedHandler(String msg) {
diff --git a/src/App/AppDef.cpp b/src/App/AppDef.cpp
index beaa975..89de7fc 100644
--- a/src/App/AppDef.cpp
+++ b/src/App/AppDef.cpp
@@ -14,8 +14,12 @@ const char *AgFirmwareModeName(AgFirmwareMode mode) {
     return "0-1PS";
   case FW_MODE_O_1P:
     return "O-1P";
-  case FW_MODE_I_8PSL:
-    return "I-8PSL";
+  case FW_MODE_I_43PS:
+    return "DIY-PRO-I-4.3PS";
+  case FW_MODE_I_37PS:
+    return "DIY-PRO-I-3.7PS";
+  case FW_MODE_I_BASIC_40PS:
+    return "DIY-BASIC-I-4.0PS";
   default:
     break;
   }
diff --git a/src/App/AppDef.h b/src/App/AppDef.h
index 5434e04..6050172 100644
--- a/src/App/AppDef.h
+++ b/src/App/AppDef.h
@@ -101,7 +101,9 @@ enum AgFirmwareMode {
   FW_MODE_O_1PP,  /** PMS5003T_1, PMS5003T_2 */
   FW_MODE_O_1PS,  /** PMS5003T, S8 */
   FW_MODE_O_1P,   /** PMS5003T */
-  FW_MODE_I_8PSL, /** DIY_PRO 4.2 */
+  FW_MODE_I_43PS, /** DIY_PRO 4.2 */
+  FW_MODE_I_37PS, /** DIY_PRO 3.7 */
+  FW_MODE_I_BASIC_40PS, /** DIY_BASIC 4.0 */
 };
 const char *AgFirmwareModeName(AgFirmwareMode mode);