diff --git a/src/main.cpp b/src/main.cpp
index 689e80e35..bf60978de 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -464,6 +464,10 @@ void setup()
     digitalWrite(VEXT_ENABLE, VEXT_ON_VALUE); // turn on the display power
 #endif
 
+#if defined(VEXT_ENABLE_DELAY)
+    delay(VEXT_ENABLE_DELAY); // give the LDO some time to stabilize the power
+#endif
+
 #if defined(BIAS_T_ENABLE)
     pinMode(BIAS_T_ENABLE, OUTPUT);
     digitalWrite(BIAS_T_ENABLE, BIAS_T_VALUE); // turn on 5V for GPS Antenna
diff --git a/src/sleep.cpp b/src/sleep.cpp
index 756582c74..353a4c657 100644
--- a/src/sleep.cpp
+++ b/src/sleep.cpp
@@ -276,7 +276,7 @@ void doDeepSleep(uint32_t msecToWake, bool skipPreflight = false, bool skipSaveN
 #endif
 
 #if defined(VEXT_ENABLE)
-    digitalWrite(VEXT_ENABLE, !VEXT_ON_VALUE); // turn on the display power
+    digitalWrite(VEXT_ENABLE, !VEXT_ON_VALUE); // turn off the display power
 #endif
 
 #ifdef ARCH_ESP32
diff --git a/variants/esp32s3/heltec_v3/variant.h b/variants/esp32s3/heltec_v3/variant.h
index d760c3b7f..1ed62fdd5 100644
--- a/variants/esp32s3/heltec_v3/variant.h
+++ b/variants/esp32s3/heltec_v3/variant.h
@@ -10,7 +10,9 @@
 #define I2C_SDA1 SDA
 #define I2C_SCL1 SCL
 
-#define VEXT_ENABLE Vext // active low, powers the oled display and the lora antenna boost
+#define VEXT_ENABLE Vext    // active low, powers the oled display and the lora antenna boost
+#define VEXT_ENABLE_DELAY 2 // the LDO needs some time to stabilize the power
+
 #define BUTTON_PIN 0
 
 #define ADC_CTRL 37