diff --git a/src/helpers/ui/DisplayDriver.h b/src/helpers/ui/DisplayDriver.h
index 6c1e3fc7..0dbe3b47 100644
--- a/src/helpers/ui/DisplayDriver.h
+++ b/src/helpers/ui/DisplayDriver.h
@@ -54,60 +54,67 @@ public:
   // convert UTF-8 characters to displayable block characters for compatibility
   virtual void translateUTF8ToBlocks(char* dest, const char* src, size_t dest_size) {
     size_t j = 0;
-#ifdef OLED_RU	  
-	char last_char = 0;
-	char cc = 0;
-#endif
+  #ifdef OLED_RU	  
+	  char last_char = 0;
+	  char cc = 0;
+  #endif
     for (size_t i = 0; src[i] != 0 && j < dest_size - 1; i++) {
       unsigned char c = (unsigned char)src[i];
       if (c >= 32 && c <= 126) {
-#ifdef OLED_RU 		  
+  #ifdef OLED_RU 		  
 		last_char = 0;
         dest[j++] = c;  // ASCII printable
-	  } else if (last_char == 0 && (c == 0xD0 || c == 0xD1 || c == 0xD2)) { // Cyrillic UTF-8 start byte for 2 bytes sequence
+	  } else if (c == 0xC2 || c == 0xC3 || c == 0xD0 || c == 0xD1 || c == 0xD2) { // Cyrillic UTF-8 convert
 		last_char = c;
-	  } else if (last_char > 0) { // Cyrillic UTF-8 next byte
-        cc = 0; // Translated charcode
-        switch (last_char) {
-          // map UTF-8 cyrillic chars to it CP-1251 ASCII codes
-          case 0xD0: {
-            if (c == 132)
-              cc = (170); // Є
-            if (c == 134)
-              cc = (178); // І
-            if (c == 135)
-              cc = (175); // Ї
-            if (c == 129)
-              cc = (168); // Ё
-            if (c > 143 && c < 192)
-              cc = (c + 48);
-            break;
+        c = src[++i]; // Get next char
+
+        if (c != 0) { // Not end of a string
+          switch (last_char) {
+            case 0xC3: {
+              cc = (c | 0xC0);
+              break;
+            }
+            // map UTF-8 cyrillic cars to it Windows-1251 (CP-1251) ASCII codes
+            case 0xD0: {
+              if (c == 132)
+                cc = (170); // Є
+              if (c == 134)
+                cc = (178); // І
+              if (c == 135)
+                cc = (175); // Ї
+              if (c == 129)
+                cc = (168); // Ё
+              if (c > 143 && c < 192)
+                cc = (c + 48);
+              break;
+            }
+            case 0xD1: {
+              if (c == 148)
+                cc = (186); // є
+              if (c == 150)
+                cc = (179); // і
+              if (c == 151)
+                cc = (191); // ї
+              if (c == 145)
+                cc = (184); // ё
+              if (c > 127 && c < 144)
+                cc = (c + 112);
+              break;
+            }
+            case 0xD2: {            
+              if (c == 144)
+                cc = (165); // Ґ
+              if (c == 145)
+                cc = (180); // ґ
+              break;
+            }
           }
-          case 0xD1: {
-            if (c == 148)
-              cc = (186); // є
-            if (c == 150)
-              cc = (179); // і
-            if (c == 151)
-              cc = (191); // ї
-            if (c == 145)
-              cc = (184); // ё
-            if (c > 127 && c < 144)
-              cc = (c + 112);
-            break;
-          }
-          case 0xD2: {            
-            if (c == 144)
-              cc = (165); // Ґ
-            if (c == 145)
-              cc = (180); // ґ
-            break;
-          }
-        }
-        if (cc > 0) {
-          dest[j++] = cc;
-        }
-		last_char = 0;
+          if (cc > 0) {
+            dest[j++] = cc;
+		  } else {
+            dest[j++] = '\xAE';  // CP1251 smile emoji replace
+		  }
+		}
       } else if (c >= 0x80) {
         last_char = 0;
         dest[j++] = '\xAE';  // CP1251 smile emoji replace
@@ -162,4 +169,4 @@ public:
   }
   
   virtual void endFrame() = 0;
-};
\ No newline at end of file
+};
diff --git a/src/helpers/ui/SSD1306Display.cpp b/src/helpers/ui/SSD1306Display.cpp
index faede378..4c3b302c 100644
--- a/src/helpers/ui/SSD1306Display.cpp
+++ b/src/helpers/ui/SSD1306Display.cpp
@@ -117,4 +117,4 @@ uint16_t SSD1306Display::getTextWidth(const char* str) {
 
 void SSD1306Display::endFrame() {
   display.display();
-}
\ No newline at end of file
+}
diff --git a/src/helpers/ui/ST7735Display.cpp b/src/helpers/ui/ST7735Display.cpp
index 344f5b1d..14c4bb84 100644
--- a/src/helpers/ui/ST7735Display.cpp
+++ b/src/helpers/ui/ST7735Display.cpp
@@ -1,4 +1,7 @@
 #include "ST7735Display.h"
+#ifdef OLED_RU
+  #include "glcdfont6x8.h"
+#endif
 
 //#include <Fonts/GFXFF/FreeSans9pt7b.h>
 
@@ -418,14 +421,14 @@ bool ST7735Display::i2c_probe(TwoWire& wire, uint8_t addr) {
 #endif
 
 // Color scheme
-ColorVal UIColor::window_bkg = ST77XX_WHITE;
+ColorVal UIColor::window_bkg = ST77XX_BLACK;
 ColorVal UIColor::title_bkg = ST77XX_BLUE;
 ColorVal UIColor::title_txt = ST77XX_WHITE;
-ColorVal UIColor::primary_txt = ST77XX_BLACK;
+ColorVal UIColor::primary_txt = ST77XX_WHITE;
 ColorVal UIColor::secondary_txt = (18 << 11) | (36 << 5) | 18;  // mid-gray
 ColorVal UIColor::warning_txt = ST77XX_ORANGE;
 ColorVal UIColor::popup_bkg = ST77XX_CYAN;
-ColorVal UIColor::popup_txt = ST77XX_BLACK;
+ColorVal UIColor::popup_txt = ST77XX_WHITE;
 ColorVal UIColor::corp_blue = 0x001A;
 
 bool ST7735Display::begin() {
@@ -542,12 +545,23 @@ void ST7735Display::startFrame(ColorVal bkg) {
   sprite->fillScreen(bkg);
   sprite->setTextColor(curr_color = UIColor::primary_txt);
   sprite->setFreeFont();
+  #ifdef OLED_RU
+    sprite->setFreeFont(&glcdfont6x8);
+  #endif
   sprite->setTextSize(1);      // This one affects size of Please wait... message
   //sprite->cp437(true);         // Use full 256 char 'Code Page 437' font
+  sprite->setAttribute(CP437_SWITCH, true);
+  sprite->setAttribute(UTF8_SWITCH, false); 
+  #ifdef OLED_RU
+    sprite->setCursor(0, 7);
+  #endif
 }
 
 void ST7735Display::setTextSize(int sz) {
   sprite->setTextSize(sz);
+  #ifdef OLED_RU
+    _size = sz;
+  #endif
 }
 
 void ST7735Display::setColor(ColorVal c) {
@@ -556,7 +570,11 @@ void ST7735Display::setColor(ColorVal c) {
 }
 
 void ST7735Display::setCursor(int x, int y) {
-  sprite->setCursor(x*SCALE_X, y*SCALE_Y);
+  #ifdef OLED_RU
+    sprite->setCursor(x*SCALE_X, y*SCALE_Y + (_size * 7));
+  #else
+    sprite->setCursor(x*SCALE_X, y*SCALE_Y);
+  #endif
 }
 
 void ST7735Display::print(const char* str) {
diff --git a/src/helpers/ui/ST7735Display.h b/src/helpers/ui/ST7735Display.h
index 6e289b21..368849bc 100644
--- a/src/helpers/ui/ST7735Display.h
+++ b/src/helpers/ui/ST7735Display.h
@@ -9,6 +9,9 @@
 class ST7735Display : public DisplayDriver {
   bool _isOn;
   RefCountedDigitalPin* _peripher_power;
+#ifdef OLED_RU
+  uint8_t _size;
+#endif
 
   bool i2c_probe(TwoWire& wire, uint8_t addr);
 public:
diff --git a/variants/heltec_t096/platformio.ini b/variants/heltec_t096/platformio.ini
index 02e88328..333677f3 100644
--- a/variants/heltec_t096/platformio.ini
+++ b/variants/heltec_t096/platformio.ini
@@ -10,6 +10,7 @@ build_flags = ${nrf52_base.build_flags}
   -I src/helpers/ui
   -D HELTEC_T096
   -D NRF52_POWER_MANAGEMENT
+  -D OLED_RU=1
   -D P_LORA_DIO_1=21
   -D P_LORA_NSS=5
   -D P_LORA_RESET=16
diff --git a/variants/heltec_v3/platformio.ini b/variants/heltec_v3/platformio.ini
index 65e636eb..b4c6cb9e 100644
--- a/variants/heltec_v3/platformio.ini
+++ b/variants/heltec_v3/platformio.ini
@@ -6,6 +6,7 @@ build_flags =
   ${sensor_base.build_flags}
   -I variants/heltec_v3
   -D HELTEC_LORA_V3
+  -D OLED_RU=1
   -D ESP32_CPU_FREQ=80
   -D P_LORA_DIO_1=14
   -D P_LORA_NSS=8
diff --git a/variants/heltec_v4/platformio.ini b/variants/heltec_v4/platformio.ini
index e7711a8a..f67a61ba 100644
--- a/variants/heltec_v4/platformio.ini
+++ b/variants/heltec_v4/platformio.ini
@@ -6,8 +6,8 @@ build_flags =
   ${sensor_base.build_flags}
   -I variants/heltec_v4
   -D HELTEC_LORA_V4
-  -D USE_SX1262
   -D OLED_RU=1
+  -D USE_SX1262
   -D ESP32_CPU_FREQ=80
   -D RADIO_CLASS=CustomSX1262
   -D WRAPPER_CLASS=CustomSX1262Wrapper
@@ -188,7 +188,6 @@ build_flags =
   -D MAX_CONTACTS=350
   -D MAX_GROUP_CHANNELS=40
   -D DISPLAY_CLASS=SSD1306Display
-  -D OLED_RU=1
   -D ENABLE_USB_INTERFACE
 ; NOTE: DO NOT ENABLE -->  -D MESH_PACKET_LOGGING=1
 ; NOTE: DO NOT ENABLE -->  -D MESH_DEBUG=1
@@ -213,7 +212,6 @@ build_flags =
   -D AUTO_SHUTDOWN_MILLIVOLTS=3400
   -D BLE_DEBUG_LOGGING=1
   -D OFFLINE_QUEUE_SIZE=256
-  -D OLED_RU=1
 ;  -D MESH_PACKET_LOGGING=1
 ;  -D MESH_DEBUG=1
 build_src_filter = ${heltec_v4_oled.build_src_filter}
diff --git a/variants/promicro/platformio.ini b/variants/promicro/platformio.ini
index 90cb475f..4660c06b 100644
--- a/variants/promicro/platformio.ini
+++ b/variants/promicro/platformio.ini
@@ -5,6 +5,7 @@ build_flags = ${nrf52_base.build_flags}
   -I variants/promicro
   -D PROMICRO
   -D USE_SX1262
+  -D OLED_RU=1
   -D RADIO_CLASS=CustomSX1262
   -D WRAPPER_CLASS=CustomSX1262Wrapper
   -D LORA_TX_POWER=22