diff --git a/src/helpers/RefCountedDigitalPin.h b/src/helpers/RefCountedDigitalPin.h
index 753f6c30e..f30c4c58b 100644
--- a/src/helpers/RefCountedDigitalPin.h
+++ b/src/helpers/RefCountedDigitalPin.h
@@ -20,7 +20,10 @@ class RefCountedDigitalPin {
       digitalWrite(_pin, _active);
     }
   }
+
   void release() {
+    if (_claims == 0) return; // avoid negative _claims
+
     _claims--;
     if (_claims == 0) {
       digitalWrite(_pin, !_active);
diff --git a/variants/heltec_v4/platformio.ini b/variants/heltec_v4/platformio.ini
index ba7590094..317f77dda 100644
--- a/variants/heltec_v4/platformio.ini
+++ b/variants/heltec_v4/platformio.ini
@@ -22,7 +22,7 @@ build_flags =
   -D P_LORA_PA_TX_EN=46  ;enable tx
   -D PIN_USER_BTN=0
   -D PIN_VEXT_EN=36
-  -D PIN_VEXT_EN_ACTIVE=LOW
+  -D PIN_VEXT_EN_ACTIVE=HIGH
   -D LORA_TX_POWER=10 ;If it is configured as 10 here, the final output will be 22 dbm.
   -D MAX_LORA_TX_POWER=22 ; Max SX1262 output
   -D SX126X_DIO2_AS_RF_SWITCH=true
diff --git a/variants/heltec_v4/target.cpp b/variants/heltec_v4/target.cpp
index 0d2bd4976..683b8f224 100644
--- a/variants/heltec_v4/target.cpp
+++ b/variants/heltec_v4/target.cpp
@@ -24,7 +24,7 @@ AutoDiscoverRTCClock rtc_clock(fallback_clock);
 #endif
 
 #ifdef DISPLAY_CLASS
-  DISPLAY_CLASS display(&(board.periph_power));
+  DISPLAY_CLASS display(NULL);
   MomentaryButton user_btn(PIN_USER_BTN, 1000, true);
 #endif