diff --git a/radio/src/gui/view_main.cpp b/radio/src/gui/view_main.cpp
index 54f4d096c..3f11305e4 100644
--- a/radio/src/gui/view_main.cpp
+++ b/radio/src/gui/view_main.cpp
@@ -163,19 +163,23 @@ void displayTrims(uint8_t phase)
 
     uint8_t att = ROUND;
     int16_t val = getTrimValue(phase, i);
+
 #if !defined(CPUM64) || !defined(FRSKY)
     int16_t dir = val;
+    bool exttrim = false;
+    if (val < -125 || val > 125) {
+      exttrim = true;
+    }
 #endif
-
-    if (val < -125 || val > 125)
-      att = BLINK|INVERS|ROUND;
-
-    if (val < -(TRIM_LEN+1)*4)
+    if (val < -(TRIM_LEN+1)*4) {
       val = -(TRIM_LEN+1);
-    else if (val > (TRIM_LEN+1)*4)
+    }
+    else if (val > (TRIM_LEN+1)*4) {
       val = TRIM_LEN+1;
-    else
+    }
+    else {
       val /= 4;
+    }
 
     if (vert[i]) {
       ym = 31;
@@ -193,6 +197,9 @@ void displayTrims(uint8_t phase)
       if (dir <= 0) {
         lcd_hline(xm-1, ym+1,  3);
       }
+      if (exttrim) {
+        lcd_hline(xm-1, ym,  3);
+      }
 #endif
     }
     else {
@@ -209,6 +216,9 @@ void displayTrims(uint8_t phase)
       if (dir <= 0) {
         lcd_vline(xm-1, ym-1,  3);
       }
+      if (exttrim) {
+        lcd_vline(xm, ym-1,  3);
+      }
 #endif
     }
     lcd_square(xm-3, ym-3, 7, att);