diff --git a/app/si.c b/app/si.c
index 1ccee86..f46cc15 100644
--- a/app/si.c
+++ b/app/si.c
@@ -62,20 +62,8 @@ static SI47XX_SsbFilterBW ssbBw = SI47XX_SSB_BW_3_kHz;
 static int8_t currentBandIndex = -1;
 bool SNR_flag = true;
 bool SI_run = true;
-#ifndef ENABLE_SPECTRUM
-typedef enum State {
-    SPECTRUM,
-    FREQ_INPUT,
-    STILL,
-} State;
-State previousState,currentState ;
-void SetState(State state) {
-    previousState = currentState;
-    currentState = state;
-}
-#else
+
 #include "app/spectrum.h"
-#endif
 typedef struct // Band data
 {
     const char *bandName; // Bandname
@@ -619,7 +607,5 @@ void SI4732_Main() {
         SYSTEM_DelayMs(1);
     }
     SI_deinit();
-    // fix a bug when in SI mode using key 5 to input a frequency , after that can not go to spectrum
-  if (currentState==FREQ_INPUT )
-		SetState(SPECTRUM);
+
 }
diff --git a/app/spectrum.c b/app/spectrum.c
index b0ef09a..216f4de 100644
--- a/app/spectrum.c
+++ b/app/spectrum.c
@@ -96,7 +96,7 @@ bool preventKeypress = true;
 bool audioState = true;
 bool lockAGC = false;
 
-State currentState = SPECTRUM, previousState = SPECTRUM;
+State currentState ,previousState ;
 
 PeakInfo peak;
 ScanInfo scanInfo;
@@ -1581,7 +1581,8 @@ static void Tick() {
 
 
  void APP_RunSpectrum() {
-
+    currentState = SPECTRUM;
+    previousState=SPECTRUM;
     // TX here coz it always? set to active VFO
     vfo = gEeprom.TX_VFO;
     // set the current frequency in the middle of the display