diff --git a/data_embed/index.html b/data_embed/index.html
index ae2fd51..509925b 100644
--- a/data_embed/index.html
+++ b/data_embed/index.html
@@ -89,11 +89,11 @@
                     </div>
                     <div>
                         <label for="aprs_lat_p">Latitude Preset</label>
-                        <input class="u-full-width" type="text" minlength="0" name="aprs_lat_p" id="aprs_lat_p" title="latitude for fixed bicon">
+                        <input class="u-full-width" type="text" minlength="0" name="aprs_lat_p" id="aprs_lat_p" title="latitude for fixed bicon, APRS format for example: 5215.0N">
                     </div>
                     <div>
                         <label for="aprs_lon_p">Longitude Preset</label>
-                        <input class="u-full-width" type="text" minlength="0" name="aprs_lon_p" id="aprs_lon_p" title="longtitude for fixed bicon">
+                        <input class="u-full-width" type="text" minlength="0" name="aprs_lon_p" id="aprs_lon_p" title="longtitude for fixed bicon, APRS format for example 02050.59E">
                     </div>
                 </div>
                 <div class="grid-container quarters">
@@ -122,8 +122,8 @@
                     <input name="bt_enabled" id="bt_enabled" type="checkbox" value="1" title="enable or disable bluetooth">
                 </div> 
                 <div>
-                    <label for="oled_enabled">Oled display enabled</label>
-                    <input name="oled_enabled" id="oled_enabled" type="checkbox" value="1" title="enable or disable oled lcd" DISABLED>
+                    <label for="oled_enabled">Display dimmer enabled</label>
+                    <input name="oled_enabled" id="oled_enabled" type="checkbox" value="1" title="enable or disable oled dimmer">
                 </div>
                 <div>
                     <label for="led_enable">LED signaling</label>
diff --git a/include/taskWebServer.h b/include/taskWebServer.h
index c46ada6..c3aa21e 100644
--- a/include/taskWebServer.h
+++ b/include/taskWebServer.h
@@ -42,7 +42,7 @@ static const char *const PREF_APRS_SHOW_CMT_INIT = "show_cmt_init";
 static const char *const PREF_DEV_BT_EN = "bt_enabled";
 static const char *const PREF_DEV_BT_EN_INIT = "bt_enabled_init";
 static const char *const PREF_DEV_OL_EN = "oled_enabled";
-static const char *const PREF_DEV_OL_EN_INIT = "oled_enabled_init";
+static const char *const PREF_DEV_OL_EN_INIT = "ol_enabled_init";
 
 typedef struct {
   String callsign;
diff --git a/src/TTGO_T-Beam_LoRa_APRS.ino b/src/TTGO_T-Beam_LoRa_APRS.ino
index 7012ee6..9929abf 100644
--- a/src/TTGO_T-Beam_LoRa_APRS.ino
+++ b/src/TTGO_T-Beam_LoRa_APRS.ino
@@ -318,6 +318,13 @@ void writedisplaytext(String HeaderTxt, String Line1, String Line2, String Line3
   display.println(Line4);
   display.setCursor(0,56);
   display.println(Line5);
+  if (enabled_oled){
+    //axp.setPowerOutPut(AXP192_DCDC1, AXP202_ON);                          // enable oled
+    display.dim(true);
+  }else{
+    //axp.setPowerOutPut(AXP192_DCDC1, AXP202_OFF);                          // disable oled
+    display.dim(false);
+  }   
   display.display();
   time_to_refresh = millis() + showRXTime;
 }
@@ -481,7 +488,6 @@ void setup(){
       if(digitalRead(BUTTON)==LOW){
         clear_preferences = 2;
       }
-
     }
 
     if (!preferences.getBool(PREF_APRS_SHOW_CMT_INIT)){
@@ -524,6 +530,8 @@ void setup(){
     // Enable ADC to measure battery current, USB voltage etc.
     axp.adc1Enable(0xfe, true);
     axp.adc2Enable(0x80, true);
+    axp.setChgLEDMode(AXP20X_LED_OFF);
+    axp.setPowerOutPut(AXP192_DCDC1, AXP202_ON);                          // oled do not turn off     
   #endif
 
   if(!display.begin(SSD1306_SWITCHCAPVCC, SSD1306_ADDRESS)) {
@@ -604,14 +612,6 @@ void setup(){
   time_to_refresh = millis() + showRXTime;
   displayInvalidGPS();
   digitalWrite(TXLED, HIGH);
-  #ifdef T_BEAM_V1_0
-    axp.setChgLEDMode(AXP20X_LED_OFF);
-    if (enabled_oled){
-      axp.setPowerOutPut(AXP192_DCDC1, AXP202_ON);                          // enable oled
-    }else{
-      axp.setPowerOutPut(AXP192_DCDC1, AXP202_OFF);                          // disable oled
-    }  
-  #endif
 }
 
 // +---------------------------------------------------------------------+//