diff --git a/app/src/main/java/com/eveningoutpost/dexdrip/g5model/DexTimeKeeper.java b/app/src/main/java/com/eveningoutpost/dexdrip/g5model/DexTimeKeeper.java
index 17dad25b35..9962db5d79 100644
--- a/app/src/main/java/com/eveningoutpost/dexdrip/g5model/DexTimeKeeper.java
+++ b/app/src/main/java/com/eveningoutpost/dexdrip/g5model/DexTimeKeeper.java
@@ -36,7 +36,7 @@ public static void updateAge(final String transmitterId, final int dexTimeStamp,
         if (dexTimeStamp < 1) {
             UserError.Log.e(TAG, "Invalid dex timestamp in updateAge: " + dexTimeStamp);
             if (dexTimeStamp == 0 && absolute) {
-                if (FirmwareCapability.isTransmitterRawIncapable(getTransmitterID())) { // Firefly, which cannot be hard reset
+                if (FirmwareCapability.isTransmitterStandardFirefly(getTransmitterID())) { // Firefly, which cannot be hard reset
                     UserError.Log.e(TAG, "Your transmitter clock has stopped or never started.");
                 } else {
                     DexResetHelper.offer("Your transmitter clock has stopped or never started. Do you want to hard reset it?");
diff --git a/app/src/main/java/com/eveningoutpost/dexdrip/g5model/FirmwareCapability.java b/app/src/main/java/com/eveningoutpost/dexdrip/g5model/FirmwareCapability.java
index d9000f9f84..7c69f874e0 100644
--- a/app/src/main/java/com/eveningoutpost/dexdrip/g5model/FirmwareCapability.java
+++ b/app/src/main/java/com/eveningoutpost/dexdrip/g5model/FirmwareCapability.java
@@ -91,6 +91,13 @@ public static boolean isTransmitterModified(final String tx_id) {
         return false;
     }
 
+    public static boolean isTransmitterStandardFirefly(final String tx_id) { // Firefly that has not been modified
+        if (!isTransmitterModified(tx_id) && isTransmitterRawIncapable(tx_id)) {
+            return true;
+        }
+        return false;
+    }
+
     public static boolean isTransmitterG5(final String tx_id) {
         return isG5Firmware(getRawFirmwareVersionString(tx_id));
     }
diff --git a/app/src/main/java/com/eveningoutpost/dexdrip/g5model/Ob1G5StateMachine.java b/app/src/main/java/com/eveningoutpost/dexdrip/g5model/Ob1G5StateMachine.java
index a5d0e87be7..7d76e2ee35 100644
--- a/app/src/main/java/com/eveningoutpost/dexdrip/g5model/Ob1G5StateMachine.java
+++ b/app/src/main/java/com/eveningoutpost/dexdrip/g5model/Ob1G5StateMachine.java
@@ -770,7 +770,7 @@ public static boolean doGetData(Ob1G5CollectionService parent, RxBleConnection c
                                 if (session_start.isFubar()) {
                                     final long tk = DexTimeKeeper.getDexTime(getTransmitterID(), tsl());
                                     if (tk > 0) {
-                                        if (FirmwareCapability.isTransmitterRawIncapable(getTransmitterID())) {// Firefly, which cannot be hard reset
+                                        if (FirmwareCapability.isTransmitterStandardFirefly(getTransmitterID())) {// Firefly, which cannot be hard reset
                                             UserError.Log.e(TAG, "Unusual session start failure");
                                         } else {
                                             DexResetHelper.offer("Unusual session start failure, is transmitter crashed? Try Hard Reset?");