diff --git a/examples/companion_radio/ui-new/UITask.cpp b/examples/companion_radio/ui-new/UITask.cpp
index d48647b3dd3..aced739dc45 100644
--- a/examples/companion_radio/ui-new/UITask.cpp
+++ b/examples/companion_radio/ui-new/UITask.cpp
@@ -197,11 +197,10 @@ class HomeScreen : public UIScreen {
         sensors_nb ++;
       }
       sensors_scroll = sensors_nb > UI_RECENT_LIST_SIZE;
-#if AUTO_OFF_MILLIS > 0
-      next_sensors_refresh = millis() + 5000; // refresh sensor values every 5 sec
-#else
-      next_sensors_refresh = millis() + 60000; // refresh sensor values every 1 min
-#endif
+      if (display.isEink()) // preserve eink displays
+        next_sensors_refresh = millis() + 60000; // refresh sensor values every 1 min
+      else
+        next_sensors_refresh = millis() + 5000; // refresh sensor values every 5 sec
     }
   }
 
@@ -703,11 +702,7 @@ class MsgPreviewScreen : public UIScreen {
     display.translateUTF8ToBlocks(filtered_msg, p->msg, sizeof(filtered_msg));
     display.printWordWrap(filtered_msg, display.width());
 
-#if AUTO_OFF_MILLIS==0 // probably e-ink
-    return 10000; // 10 s
-#else
-    return 1000;  // next render after 1000 ms
-#endif
+    return display.isEink() ? 10000 : 1000; // 10 s for eink
   }
 
   bool handleInput(char c) override {
@@ -739,6 +734,9 @@ void UITask::begin(DisplayDriver* display, SensorManager* sensors, NodePrefs* no
 #if defined(PIN_USER_BTN_ANA)
   analog_btn.begin();
 #endif
+#if defined(BACKLIGHT_BTN)
+  backlight_btn.begin();
+#endif
 
   _node_prefs = node_prefs;
 
@@ -910,9 +908,11 @@ void UITask::shutdown(bool restart){
   if (restart) {
     _board->reboot();
   } else {
-    display.forceFullRefresh();
-    display.clear();
-    display.endFrame();
+    if (_display->isEink()) {
+      _display->blankScreen();
+      _display->turnOff();
+      _display->powerOff();
+    }
     // Power off board including radio, display, GPS and components
     _board->powerOff();
   }
@@ -957,7 +957,9 @@ void UITask::loop() {
   if (ev == BUTTON_EVENT_CLICK) {
     c = checkDisplayOn(KEY_ENTER);
   } else if (ev == BUTTON_EVENT_LONG_PRESS) {
+    display.blankScreen();
     display.turnOff();
+    display.powerOff();
   } else if (ev == BUTTON_EVENT_DOUBLE_CLICK) {
     c = handleDoubleClick(KEY_SELECT);
   } else if (ev == BUTTON_EVENT_TRIPLE_CLICK) {
@@ -1002,13 +1004,31 @@ void UITask::loop() {
 #endif
 #if defined(BACKLIGHT_BTN)
   if (millis() > next_backlight_btn_check) {
-    bool touch_state = digitalRead(PIN_BUTTON2);
+    if (backlight_btn.isPressed()) {
+      if (!_display->isOn()) {
+        _display->turnOn();
+        _next_refresh = 0;
+      }
+      _auto_off = millis() + AUTO_OFF_MILLIS;   // extend auto-off timer
+      backlight_btn_pressed_at = millis(); // still pressed
+    }
+    bool touch_state = (millis() - backlight_btn_pressed_at > 5000);
+      // Backlight button events
+    int bev = backlight_btn.check();
+    if (bev == BUTTON_EVENT_DOUBLE_CLICK) {
+      _display->forceFullRefresh();
+    } else if (bev == BUTTON_EVENT_TRIPLE_CLICK) {
+      _display->blankScreen();
+      _display->turnOff();
+      _display->powerOff();
+      backlight_btn_pressed_at = 0;
+    }
 #if defined(DISP_BACKLIGHT)
     digitalWrite(DISP_BACKLIGHT, !touch_state);
 #elif defined(EXP_PIN_BACKLIGHT)
     expander.digitalWrite(EXP_PIN_BACKLIGHT, !touch_state);
 #endif
-    next_backlight_btn_check = millis() + 300;
+    next_backlight_btn_check = millis() + 100;
   }
 #endif
 
@@ -1056,6 +1076,12 @@ void UITask::loop() {
     }
 #endif
     if (millis() > _auto_off) {
+        #ifdef EINK_SCREENOFF_BLANK
+        if (curr != msg_preview) { // don't blank if messages are waiting
+          _display->blankScreen();
+          _display->powerOff();
+        }
+        #endif
       _display->turnOff();
     }
 #endif
diff --git a/examples/companion_radio/ui-new/UITask.h b/examples/companion_radio/ui-new/UITask.h
index 361b04d0125..4d44bfe1a6e 100644
--- a/examples/companion_radio/ui-new/UITask.h
+++ b/examples/companion_radio/ui-new/UITask.h
@@ -61,7 +61,8 @@ class UITask : public AbstractUITask {
   unsigned long _alert_expiry;
   int _msgcount;
   unsigned long ui_started_at, next_batt_chck;
-  int next_backlight_btn_check = 0;
+  unsigned long next_backlight_btn_check = 0;
+  unsigned long backlight_btn_pressed_at = 0;
 #ifdef PIN_STATUS_LED
   int led_state = 0;
   int next_led_change = 0;
diff --git a/src/helpers/ui/DisplayDriver.h b/src/helpers/ui/DisplayDriver.h
index 3e9e2dde86f..58147aa0e75 100644
--- a/src/helpers/ui/DisplayDriver.h
+++ b/src/helpers/ui/DisplayDriver.h
@@ -26,6 +26,8 @@ class DisplayDriver {
   virtual void forceFullRefresh() {} // next refresh will be full for eink
   virtual void turnOn() = 0;
   virtual void turnOff() = 0;
+  virtual void blankScreen() {} // to cleanly erase screen before turning off
+  virtual void powerOff() {}
   virtual void clear() = 0;
   virtual void startFrame(ColorVal bkg = UIColor::window_bkg) = 0;
   virtual void setTextSize(int sz) = 0;
diff --git a/src/helpers/ui/GxEPDDisplay.cpp b/src/helpers/ui/GxEPDDisplay.cpp
index 332157eb8d1..ce09423e11a 100644
--- a/src/helpers/ui/GxEPDDisplay.cpp
+++ b/src/helpers/ui/GxEPDDisplay.cpp
@@ -75,20 +75,27 @@ void GxEPDDisplay::turnOn() {
   }
 }
 
-void GxEPDDisplay::turnOff() {
+void GxEPDDisplay::powerOff() {
+  display.hibernate();
+}
+
+void GxEPDDisplay::turnOff() { // Only stops refresh
 #if defined(DISP_BACKLIGHT) && !defined(BACKLIGHT_BTN)
   digitalWrite(DISP_BACKLIGHT, LOW);
 #elif defined(EXP_PIN_BACKLIGHT) && !defined(BACKLIGHT_BTN)
   expander.digitalWrite(EXP_PIN_BACKLIGHT, LOW);
 #endif
   _isOn = false;
+  last_display_crc_value=0;
+}
+
+void GxEPDDisplay::blankScreen() {
   // do full refresh before powering off to clear screen
   // no full refresh needed at wakeup
   display.clearScreen(0xFF); // Clears microcontroller side RAM
   display.writeScreenBuffer(0xFF); // Forces 0xFF (White) into the display controller's history registers
   resetPartialRefreshCounter();
   last_display_crc_value=0;
-  display.hibernate();
 }
 
 void GxEPDDisplay::clear() {
diff --git a/src/helpers/ui/GxEPDDisplay.h b/src/helpers/ui/GxEPDDisplay.h
index 8a37b72cc69..462744026bd 100644
--- a/src/helpers/ui/GxEPDDisplay.h
+++ b/src/helpers/ui/GxEPDDisplay.h
@@ -60,6 +60,8 @@ class GxEPDDisplay : public DisplayDriver {
   void resetPartialRefreshCounter() { _cycles_before_full_refresh = max_partial_refresh; };
   void turnOn() override;
   void turnOff() override;
+  void blankScreen() override;
+  void powerOff() override;
   void clear() override;
   void startFrame(ColorVal bkg = UIColor::window_bkg) override;
   void setTextSize(int sz) override;
diff --git a/variants/lilygo_techo/platformio.ini b/variants/lilygo_techo/platformio.ini
index 81da2e48c3f..eb4a69e284e 100644
--- a/variants/lilygo_techo/platformio.ini
+++ b/variants/lilygo_techo/platformio.ini
@@ -32,8 +32,12 @@ build_flags = ${nrf52_base.build_flags}
   -D PIN_GPS_RESET_ACTIVE=LOW
   -D TELEM_BME280_ADDRESS=0x77
   -D DISPLAY_CLASS=GxEPDDisplay
+  -D EINK_SCREENOFF_BLANK
+  -D UI_RECENT_LIST_SIZE=9
+  -D UI_MSG_PREVIEW_SIZE=165
+  -D EINK_MAX_PARTIAL_REFRESH=60
+  -D AUTO_OFF_MILLIS=900000
   -D BACKLIGHT_BTN=PIN_BUTTON2
-  -D AUTO_OFF_MILLIS=0
 build_src_filter = ${nrf52_base.build_src_filter}
   +<helpers/*.cpp>
   +<TechoBoard.cpp>
@@ -91,7 +95,6 @@ build_flags =
   -D BLE_PIN_CODE=123456
 ;  -D BLE_DEBUG_LOGGING=1
   -D OFFLINE_QUEUE_SIZE=256
-  -D UI_RECENT_LIST_SIZE=9
   -D UI_SENSORS_PAGE=1
   -D UI_GPS_PAGE=1
 ;  -D MESH_PACKET_LOGGING=1
@@ -116,7 +119,6 @@ build_flags =
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D OFFLINE_QUEUE_SIZE=256
-  -D UI_RECENT_LIST_SIZE=9
   -D UI_SENSORS_PAGE=1
   -D AUTO_SHUTDOWN_MILLIVOLTS=3300
   -D QSPIFLASH=1
diff --git a/variants/lilygo_techo/target.cpp b/variants/lilygo_techo/target.cpp
index 278fc76dad5..12b40d7ee94 100644
--- a/variants/lilygo_techo/target.cpp
+++ b/variants/lilygo_techo/target.cpp
@@ -23,6 +23,7 @@ EnvironmentSensorManager sensors = EnvironmentSensorManager();
 #ifdef DISPLAY_CLASS
   DISPLAY_CLASS display;
   MomentaryButton user_btn(PIN_USER_BTN, 1000, true);
+  MomentaryButton backlight_btn(BACKLIGHT_BTN, 1000, true);
 #endif
 
 bool radio_init() {
diff --git a/variants/lilygo_techo/target.h b/variants/lilygo_techo/target.h
index 2b8a1783f06..a1668f03187 100644
--- a/variants/lilygo_techo/target.h
+++ b/variants/lilygo_techo/target.h
@@ -22,6 +22,7 @@ extern EnvironmentSensorManager sensors;
 #ifdef DISPLAY_CLASS
   extern DISPLAY_CLASS display;
   extern MomentaryButton user_btn;
+  extern MomentaryButton backlight_btn;
 #endif
 
 bool radio_init();
diff --git a/variants/thinknode_m1/platformio.ini b/variants/thinknode_m1/platformio.ini
index 89c48403bf5..7c620e2ed6d 100644
--- a/variants/thinknode_m1/platformio.ini
+++ b/variants/thinknode_m1/platformio.ini
@@ -24,6 +24,18 @@ build_flags = ${nrf52_base.build_flags}
   -D SX126X_RX_BOOSTED_GAIN=1
   -D LORA_TX_POWER=22
   -D P_LORA_TX_LED=13
+  -D UI_RECENT_LIST_SIZE=9
+  -D UI_MSG_PREVIEW_SIZE=165
+  -D EINK_MAX_PARTIAL_REFRESH=60
+  -D EINK_DISPLAY_MODEL=GxEPD2_154_D67
+  -D EINK_SCALE_X=1.5625f
+  -D EINK_SCALE_Y=1.5625f
+  -D EINK_X_OFFSET=0
+  -D EINK_Y_OFFSET=10
+  -D BACKLIGHT_BTN=PIN_BUTTON2
+  -D AUTO_OFF_MILLIS=900000
+  -D UI_NO_HIBERNATE
+  -D DISABLE_DIAGNOSTIC_OUTPUT
 build_src_filter = ${nrf52_base.build_src_filter}
   +<helpers/*.cpp>
   +<ThinkNodeM1Board.cpp>
diff --git a/variants/thinknode_m1/target.cpp b/variants/thinknode_m1/target.cpp
index 69306fc0e1e..c430cee00df 100644
--- a/variants/thinknode_m1/target.cpp
+++ b/variants/thinknode_m1/target.cpp
@@ -17,6 +17,7 @@ ThinkNodeM1SensorManager sensors = ThinkNodeM1SensorManager(nmea);
 #ifdef DISPLAY_CLASS
   DISPLAY_CLASS display;
   MomentaryButton user_btn(PIN_USER_BTN, 1000, true);
+  MomentaryButton backlight_btn(BACKLIGHT_BTN, 1000, true);
 #endif
 
 bool radio_init() {
diff --git a/variants/thinknode_m1/target.h b/variants/thinknode_m1/target.h
index ec1297beffc..d2d6aed1d50 100644
--- a/variants/thinknode_m1/target.h
+++ b/variants/thinknode_m1/target.h
@@ -40,6 +40,7 @@ extern ThinkNodeM1SensorManager sensors;
 #ifdef DISPLAY_CLASS
   extern DISPLAY_CLASS display;
   extern MomentaryButton user_btn;
+  extern MomentaryButton backlight_btn;
 #endif
 
 bool radio_init();
diff --git a/variants/thinknode_m1/variant.h b/variants/thinknode_m1/variant.h
index f7f52a6a592..aecf197e62d 100644
--- a/variants/thinknode_m1/variant.h
+++ b/variants/thinknode_m1/variant.h
@@ -81,7 +81,7 @@
 #define BUTTON_PIN              PIN_BUTTON1
 #define PIN_USER_BTN            BUTTON_PIN
 
-#define PIN_BUTTON2             (11)
+#define PIN_BUTTON2             (39)
 #define BUTTON_PIN2             PIN_BUTTON2
 
 #define EXTERNAL_FLASH_DEVICES MX25R1635F
@@ -131,6 +131,11 @@ extern const int SCK;
 #define DISP_BUSY               (3)
 #define DISP_BACKLIGHT          (43)
 
+#define PIN_DISPLAY_CS DISP_CS
+#define PIN_DISPLAY_DC DISP_DC
+#define PIN_DISPLAY_RST DISP_RST
+#define PIN_DISPLAY_BUSY DISP_BUSY
+
 ////////////////////////////////////////////////////////////////////////////////
 // GPS
 
diff --git a/variants/thinknode_m5/platformio.ini b/variants/thinknode_m5/platformio.ini
index a3f348b3374..1980575ec66 100644
--- a/variants/thinknode_m5/platformio.ini
+++ b/variants/thinknode_m5/platformio.ini
@@ -26,8 +26,12 @@ build_flags = ${esp32_base.build_flags}
   -D EINK_SCALE_Y=1.5625f
   -D EINK_X_OFFSET=0
   -D EINK_Y_OFFSET=10
+  -D UI_RECENT_LIST_SIZE=9
+  -D UI_MSG_PREVIEW_SIZE=165
+  -D EINK_MAX_PARTIAL_REFRESH=60
   -D BACKLIGHT_BTN=PIN_BUTTON2
-  -D AUTO_OFF_MILLIS=0
+  -D AUTO_OFF_MILLIS=900000
+  -D UI_NO_HIBERNATE
   -D DISABLE_DIAGNOSTIC_OUTPUT
   -D SX126X_DIO2_AS_RF_SWITCH=true
   -D SX126X_DIO3_TCXO_VOLTAGE=3.3
@@ -150,7 +154,6 @@ build_flags =
   -D MAX_GROUP_CHANNELS=40
   -D BLE_PIN_CODE=123456
   -D OFFLINE_QUEUE_SIZE=256
-  -D UI_RECENT_LIST_SIZE=9
 ;  -D BLE_DEBUG_LOGGING=1
 ;  -D MESH_PACKET_LOGGING=1
 ;  -D GPS_NMEA_DEBUG
diff --git a/variants/thinknode_m5/target.cpp b/variants/thinknode_m5/target.cpp
index be534f67d75..ec524df749f 100644
--- a/variants/thinknode_m5/target.cpp
+++ b/variants/thinknode_m5/target.cpp
@@ -26,6 +26,7 @@ EnvironmentSensorManager sensors = EnvironmentSensorManager();
 #ifdef DISPLAY_CLASS
   DISPLAY_CLASS display;
   MomentaryButton user_btn(PIN_USER_BTN, 1000, true);
+  MomentaryButton backlight_btn(BACKLIGHT_BTN, 1000, true);
 #endif
 
 bool radio_init() {
diff --git a/variants/thinknode_m5/target.h b/variants/thinknode_m5/target.h
index a613e390901..7cce1edbf88 100644
--- a/variants/thinknode_m5/target.h
+++ b/variants/thinknode_m5/target.h
@@ -24,6 +24,7 @@ extern PCA9557 expander;
 #ifdef DISPLAY_CLASS
   extern DISPLAY_CLASS display;
   extern MomentaryButton user_btn;
+  extern MomentaryButton backlight_btn;
 #endif
 
 bool radio_init();
diff --git a/variants/thinknode_m8/platformio.ini b/variants/thinknode_m8/platformio.ini
index db19e446644..47d3a3fcd78 100644
--- a/variants/thinknode_m8/platformio.ini
+++ b/variants/thinknode_m8/platformio.ini
@@ -18,12 +18,16 @@ build_flags = ${nrf52_base.build_flags}
   -D P_LORA_SCLK=19
   -D P_LORA_MISO=22
   -D P_LORA_MOSI=20
-  -D UI_SHOW_CLOCK=1
+  -D DISPLAY_ROTATION=4
   -D UI_HAS_ROTARY_INPUT=1
   -D UI_HAS_NAV_INPUT=1
   -D UI_RECENT_LIST_SIZE=9
   -D UI_MSG_PREVIEW_SIZE=165
   -D EINK_MAX_PARTIAL_REFRESH=60
+  -D AUTO_OFF_MILLIS=900000
+  -D BACKLIGHT_BTN=PIN_BUTTON2
+  -D UI_SHOW_CLOCK=1
+  -D EINK_SCREENOFF_BLANK
   -D EINK_DISPLAY_MODEL=GxEPD2_154_D67
 ;  -D EINK_DISPLAY_MODEL=GxEPD2_154_GDEY0154D67
 ;  -D EINK_DISPLAY_MODEL=GxEPD2_150_BN
@@ -92,10 +96,7 @@ build_flags =
   -D MAX_GROUP_CHANNELS=40
   -D BLE_PIN_CODE=123456
 #  -D BLE_DEBUG_LOGGING=1
-  -D DISPLAY_ROTATION=4
   -D DISPLAY_CLASS=GxEPDDisplay
-  -D BACKLIGHT_BTN=PIN_BUTTON2
-  -D AUTO_OFF_MILLIS=0
   -D OFFLINE_QUEUE_SIZE=256
   -D PIN_BUZZER=33
   -D AUTO_SHUTDOWN_MILLIVOLTS=3300
@@ -133,8 +134,6 @@ build_flags =
   -D DISPLAY_ROTATION=4
   -D QSPIFLASH=1
   -D DISPLAY_CLASS=GxEPDDisplay
-  -D BACKLIGHT_BTN=PIN_BUTTON2
-  -D AUTO_OFF_MILLIS=0
   -D OFFLINE_QUEUE_SIZE=256
   -D PIN_BUZZER=6
   -D AUTO_SHUTDOWN_MILLIVOLTS=3300
diff --git a/variants/thinknode_m8/target.cpp b/variants/thinknode_m8/target.cpp
index ac4ac100edc..69f3cc52604 100644
--- a/variants/thinknode_m8/target.cpp
+++ b/variants/thinknode_m8/target.cpp
@@ -23,6 +23,7 @@ EnvironmentSensorManager sensors = EnvironmentSensorManager();
   DISPLAY_CLASS display;
   MomentaryButton user_btn(PIN_USER_BTN, 1000, true);
   RotaryInputGPIO rotary_input(PIN_BUTTON1_A, PIN_BUTTON1_B);
+  MomentaryButton backlight_btn(BACKLIGHT_BTN, 1000, true);
 #endif
 
 bool radio_init() {
diff --git a/variants/thinknode_m8/target.h b/variants/thinknode_m8/target.h
index c3402a01a7e..39928506585 100644
--- a/variants/thinknode_m8/target.h
+++ b/variants/thinknode_m8/target.h
@@ -23,6 +23,7 @@ extern EnvironmentSensorManager sensors;
 #ifdef DISPLAY_CLASS
   extern DISPLAY_CLASS display;
   extern MomentaryButton user_btn;
+  extern MomentaryButton backlight_btn;
   extern RotaryInputGPIO rotary_input;
 #endif