diff --git a/src/board_ersky9x.h b/src/board_ersky9x.h
index 1ed6f00a7..7b3f9390c 100644
--- a/src/board_ersky9x.h
+++ b/src/board_ersky9x.h
@@ -78,4 +78,11 @@ extern uint8_t maxTemperature ;           // Raw temp reading
 #define strcpy_P strcpy
 #define strcat_P strcat
 
+extern uint32_t read_keys();
+#define KEYS_PRESSED() (~read_keys())
+#define DBLKEYS_PRESSED_RGT_LFT(i) (in & (0x20 + 0x40))
+#define DBLKEYS_PRESSED_UP_DWN(i)  (in & (0x10 + 0x08))
+#define DBLKEYS_PRESSED_RGT_UP(i)  (in & (0x20 + 0x10))
+#define DBLKEYS_PRESSED_LFT_DWN(i) (in & (0x40 + 0x08))
+
 #endif
diff --git a/src/drivers.cpp b/src/drivers.cpp
index 2d592e20d..471cb9e86 100644
--- a/src/drivers.cpp
+++ b/src/drivers.cpp
@@ -74,13 +74,13 @@ void Key::input(bool val, EnumKeys enuk)
 {
   uint8_t t_vals = m_vals ;
   t_vals <<= 1 ;
-  if(val) t_vals |= 1; //portbit einschieben
+  if (val) t_vals |= 1; //portbit einschieben
   m_vals = t_vals ;
 
   m_cnt++;
 
-  if(m_state && m_vals==0){  //gerade eben sprung auf 0
-    if(m_state!=KSTATE_KILLED) {
+  if (m_state && m_vals==0) {  //gerade eben sprung auf 0
+    if (m_state != KSTATE_KILLED) {
       putEvent(EVT_KEY_BREAK(enuk));
     }
     m_cnt   = 0;
@@ -88,7 +88,7 @@ void Key::input(bool val, EnumKeys enuk)
   }
   switch(m_state){
     case KSTATE_OFF:
-      if(m_vals==FFVAL){ //gerade eben sprung auf ff
+      if (m_vals == FFVAL) { //gerade eben sprung auf ff
         m_state = KSTATE_START;
         m_cnt   = 0;
       }
diff --git a/src/menus.cpp b/src/menus.cpp
index c93b2b6f8..227a7de0d 100644
--- a/src/menus.cpp
+++ b/src/menus.cpp
@@ -74,22 +74,23 @@ int16_t checkIncDec(uint8_t event, int16_t val, int16_t i_min, int16_t i_max, ui
   int16_t newval = val;
   
 #if defined(DBLKEYS)
-  if (keyState(KEY_RIGHT) && keyState(KEY_LEFT)) {
+  uint8_t in = KEYS_PRESSED();
+  if (DBLKEYS_PRESSED_RGT_LFT(in)) {
     newval = -val;
     killEvents(KEY_LEFT);
     killEvents(KEY_RIGHT);
   }
-  else if (s_editMode && keyState(KEY_RIGHT) && keyState(KEY_UP)) {
+  else if (s_editMode && DBLKEYS_PRESSED_RGT_UP(in)) {
     newval = (i_max > 100 ? 100 : i_max);
     killEvents(KEY_RIGHT);
     killEvents(KEY_UP);
   }
-  else if (s_editMode && keyState(KEY_LEFT) && keyState(KEY_DOWN)) {
+  else if (s_editMode && DBLKEYS_PRESSED_LFT_DWN(in)) {
     newval = (i_min < -100 ? -100 : i_min);
     killEvents(KEY_LEFT);
     killEvents(KEY_DOWN);
   }
-  else if (s_editMode && keyState(KEY_UP) && keyState(KEY_DOWN)) {
+  else if (s_editMode && DBLKEYS_PRESSED_UP_DWN(in)) {
     newval = 0;
     killEvents(KEY_UP);
     killEvents(KEY_DOWN);
diff --git a/src/open9x.h b/src/open9x.h
index 0547d13e6..6efa803d6 100644
--- a/src/open9x.h
+++ b/src/open9x.h
@@ -244,7 +244,22 @@ extern uint8_t s_bind_allowed;
 #  define OUT_H_14DBUSY  6
 #endif
 
-#else // boards prior to v4 ...
+inline uint8_t KEYS_PRESSED()
+{
+  uint8_t tin = ~PINL;
+  uint8_t in;
+  in = (tin & 0x0f) << 3;
+  in |= (tin & 0x30) >> 3;
+  return in;
+}
+
+#define DBLKEYS_PRESSED_RGT_LFT(i) (in & ((1<<INP_P_KEY_RGT) + (1<<INP_P_KEY_LFT)))
+#define DBLKEYS_PRESSED_UP_DWN(i)  (in & ((1<<INP_P_KEY_UP) + (1<<INP_P_KEY_DWN)))
+#define DBLKEYS_PRESSED_RGT_UP(i)  (in & ((1<<INP_P_KEY_RGT) + (1<<INP_P_KEY_UP)))
+#define DBLKEYS_PRESSED_LFT_DWN(i) (in & ((1<<INP_P_KEY_LFT) + (1<<INP_P_KEY_DWN)))
+
+
+#elif defined(PCBSTD) // stock board ...
 
 #define OUT_B_LIGHT   7
 #define INP_B_KEY_LFT 6
@@ -286,6 +301,12 @@ extern uint8_t s_bind_allowed;
 #define INP_G_RF_POW   1
 #define INP_G_RuddDR   0
 
+#define KEYS_PRESSED() (~PINB)
+#define DBLKEYS_PRESSED_RGT_LFT(i) (in & ((1<<INP_B_KEY_RGT) + (1<<INP_B_KEY_LFT)))
+#define DBLKEYS_PRESSED_UP_DWN(i)  (in & ((1<<INP_B_KEY_UP) + (1<<INP_B_KEY_DWN)))
+#define DBLKEYS_PRESSED_RGT_UP(i)  (in & ((1<<INP_B_KEY_RGT) + (1<<INP_B_KEY_UP)))
+#define DBLKEYS_PRESSED_LFT_DWN(i) (in & ((1<<INP_B_KEY_LFT) + (1<<INP_B_KEY_DWN)))
+
 #endif // defined (PCBV4)
 
 #if defined(PCBARM)