diff --git a/src/helpers/ui/E213Display.cpp b/src/helpers/ui/E213Display.cpp
index 5f04e685..814693a0 100644
--- a/src/helpers/ui/E213Display.cpp
+++ b/src/helpers/ui/E213Display.cpp
@@ -90,7 +90,10 @@ void E213Display::powerOff() {
 
 void E213Display::turnOn() {
   if (!_init) begin();
-  else if (!_isOn) powerOn();
+  else if (!_isOn) {
+    powerOn();
+    display->fastmodeOn();  // Reinitialize display controller after power was cut
+  }
   _isOn = true;
 }
 
diff --git a/src/helpers/ui/E290Display.cpp b/src/helpers/ui/E290Display.cpp
index 529f7909..ef4df05e 100644
--- a/src/helpers/ui/E290Display.cpp
+++ b/src/helpers/ui/E290Display.cpp
@@ -44,7 +44,10 @@ void E290Display::powerOff() {
 
 void E290Display::turnOn() {
   if (!_init) begin();
-  else if (!_isOn) powerOn();
+  else if (!_isOn) {
+    powerOn();
+    display.fastmodeOn();  // Reinitialize display controller after power was cut
+  }
   _isOn = true;
 }
 
diff --git a/variants/heltec_e213/platformio.ini b/variants/heltec_e213/platformio.ini
index cfa3362f..63bf6d9b 100644
--- a/variants/heltec_e213/platformio.ini
+++ b/variants/heltec_e213/platformio.ini
@@ -48,6 +48,7 @@ build_flags =
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D DISPLAY_CLASS=E213Display
+  -D AUTO_OFF_MILLIS=0
   -D BLE_PIN_CODE=123456   ; dynamic, random PIN
   -D BLE_DEBUG_LOGGING=1
   -D OFFLINE_QUEUE_SIZE=256
@@ -69,6 +70,7 @@ build_flags =
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D DISPLAY_CLASS=E213Display
+  -D AUTO_OFF_MILLIS=0
   -D OFFLINE_QUEUE_SIZE=256
 build_src_filter = ${Heltec_E213_base.build_src_filter}
   +<helpers/ui/E213Display.cpp>
diff --git a/variants/heltec_e290/platformio.ini b/variants/heltec_e290/platformio.ini
index d6be213f..2681048c 100644
--- a/variants/heltec_e290/platformio.ini
+++ b/variants/heltec_e290/platformio.ini
@@ -42,6 +42,7 @@ build_flags =
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D DISPLAY_CLASS=E290Display
+  -D AUTO_OFF_MILLIS=0
   -D BLE_PIN_CODE=123456   ; dynamic, random PIN
   -D BLE_DEBUG_LOGGING=1
   -D OFFLINE_QUEUE_SIZE=256
@@ -63,6 +64,7 @@ build_flags =
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D DISPLAY_CLASS=E290Display
+  -D AUTO_OFF_MILLIS=0
   -D BLE_PIN_CODE=123456   ; dynamic, random PIN
   -D BLE_DEBUG_LOGGING=1
   -D OFFLINE_QUEUE_SIZE=256