diff --git a/Software/src/battery/RJXZS-BMS.cpp b/Software/src/battery/RJXZS-BMS.cpp
index 47ab5b2c..4a2909e8 100644
--- a/Software/src/battery/RJXZS-BMS.cpp
+++ b/Software/src/battery/RJXZS-BMS.cpp
@@ -82,11 +82,11 @@ void update_values_battery() {
     //SOC% not available. Raise warning event if we go too long without SOC
     timespent_without_soc++;
     if (timespent_without_soc > FIVE_MINUTES) {
-      set_event(EVENT_SOC_PLAUSIBILITY_ERROR, 0);
+      set_event(EVENT_SOC_UNAVAILABLE, 0);
     }
   } else {  //SOC is available, stop counting and clear error
     timespent_without_soc = 0;
-    clear_event(EVENT_SOC_PLAUSIBILITY_ERROR);
+    clear_event(EVENT_SOC_UNAVAILABLE);
   }
 
   datalayer.battery.status.soh_pptt;  // This BMS does not have a SOH% formula
diff --git a/Software/src/devboard/utils/events.cpp b/Software/src/devboard/utils/events.cpp
index edaa046f..7ed7b121 100644
--- a/Software/src/devboard/utils/events.cpp
+++ b/Software/src/devboard/utils/events.cpp
@@ -145,6 +145,7 @@ void init_events(void) {
   events.entries[EVENT_DISCHARGE_LIMIT_EXCEEDED].level = EVENT_LEVEL_INFO;
   events.entries[EVENT_12V_LOW].level = EVENT_LEVEL_WARNING;
   events.entries[EVENT_SOC_PLAUSIBILITY_ERROR].level = EVENT_LEVEL_ERROR;
+  events.entries[EVENT_SOC_UNAVAILABLE].level = EVENT_LEVEL_WARNING;
   events.entries[EVENT_KWH_PLAUSIBILITY_ERROR].level = EVENT_LEVEL_INFO;
   events.entries[EVENT_BATTERY_EMPTY].level = EVENT_LEVEL_INFO;
   events.entries[EVENT_BATTERY_FULL].level = EVENT_LEVEL_INFO;
@@ -255,6 +256,8 @@ const char* get_event_message_string(EVENTS_ENUM_TYPE event) {
       return "12V battery source below required voltage to safely close contactors. Inspect the supply/battery!";
     case EVENT_SOC_PLAUSIBILITY_ERROR:
       return "ERROR: SOC% reported by battery not plausible. Restart battery!";
+    case EVENT_SOC_UNAVAILABLE:
+      return "Warning: SOC% not sent by BMS. Calibrate BMS via app.";
     case EVENT_KWH_PLAUSIBILITY_ERROR:
       return "Info: kWh remaining reported by battery not plausible. Battery needs cycling.";
     case EVENT_BATTERY_EMPTY:
diff --git a/Software/src/devboard/utils/events.h b/Software/src/devboard/utils/events.h
index 34ce9282..b536790f 100644
--- a/Software/src/devboard/utils/events.h
+++ b/Software/src/devboard/utils/events.h
@@ -6,7 +6,7 @@
 
 // #define INCLUDE_EVENTS_TEST  // Enable to run an event test loop, see events_test_on_target.cpp
 
-#define EE_MAGIC_HEADER_VALUE 0x0011  // 0x0000 to 0xFFFF
+#define EE_MAGIC_HEADER_VALUE 0x0012  // 0x0000 to 0xFFFF
 
 #define GENERATE_ENUM(ENUM) ENUM,
 #define GENERATE_STRING(STRING) #STRING,
@@ -38,6 +38,7 @@
   XX(EVENT_WATER_INGRESS)               \
   XX(EVENT_12V_LOW)                     \
   XX(EVENT_SOC_PLAUSIBILITY_ERROR)      \
+  XX(EVENT_SOC_UNAVAILABLE)             \
   XX(EVENT_KWH_PLAUSIBILITY_ERROR)      \
   XX(EVENT_BATTERY_EMPTY)               \
   XX(EVENT_BATTERY_FULL)                \