diff --git a/firmware/drivers/audio/wm8751.c b/firmware/drivers/audio/wm8751.c
index c37341ef26..ca62f69d95 100644
--- a/firmware/drivers/audio/wm8751.c
+++ b/firmware/drivers/audio/wm8751.c
@@ -219,20 +219,22 @@ static void audiohw_mute(bool mute)
 /* Reset and power up the WM8751 */
 void audiohw_preinit(void)
 {
-#ifdef MROBE_100
+#if defined(MROBE_100)
     /* controls headphone ouput */
     GPIOL_ENABLE     |= 0x10;
     GPIOL_OUTPUT_EN  |= 0x10;
     GPIOL_OUTPUT_VAL |= 0x10; /* disable */
-#endif
-
-#ifdef MPIO_HD200
+#elif defined(MPIO_HD200)
     /* control headphone output
      * disabled on startup
      */
-    and_l(~(1<<25),&GPIO1_OUT);
+    and_l(~(1<<25), &GPIO1_OUT);
     or_l((1<<25), &GPIO1_ENABLE);
     or_l((1<<25), &GPIO1_FUNCTION);
+#elif defined(MPIO_HD300)
+    and_l(~(1<<5), &GPIO1_OUT);
+    or_l((1<<5), &GPIO1_ENABLE);
+    or_l((1<<5), &GPIO1_FUNCTION);
 #endif
 
     /*
@@ -322,15 +324,15 @@ void audiohw_postinit(void)
 
     audiohw_mute(false);
 
-#ifdef MROBE_100
+#if defined(MROBE_100)
     /* enable headphone output */
     GPIOL_OUTPUT_VAL &= ~0x10;
     GPIOL_OUTPUT_EN  |=  0x10;
-#endif
-
-#ifdef MPIO_HD200
+#elif defined(MPIO_HD200)
    /* enable headphone output */
-   or_l((1<<25),&GPIO1_OUT);
+   or_l((1<<25), &GPIO1_OUT);
+#elif defined(MPIO_HD300)
+   or_l((1<<5), &GPIO1_OUT);
 #endif
 }
 
@@ -394,9 +396,11 @@ void audiohw_close(void)
     /* 1. Set DACMU = 1 to soft-mute the audio DACs. */
     audiohw_mute(true);
 
-#ifdef MPIO_HD200
+#if defined(MPIO_HD200)
     /* disable headphone out */
     and_l(~(1<<25), &GPIO1_OUT);
+#elif defined(MPIO_HD300)
+    and_l(~(1<<5), &GPIO1_OUT);
 #endif
 
     /* 2. Disable all output buffers. */
diff --git a/firmware/target/coldfire/mpio/hd300/lcd-hd300.c b/firmware/target/coldfire/mpio/hd300/lcd-hd300.c
index 3752a84073..31087a5d43 100644
--- a/firmware/target/coldfire/mpio/hd300/lcd-hd300.c
+++ b/firmware/target/coldfire/mpio/hd300/lcd-hd300.c
@@ -210,25 +210,8 @@ void lcd_update(void)
     lcd_write_command_ex(LCD_CNTL_COLUMN, 0, -1);
     lcd_write_command(LCD_CNTL_DATA_WRITE);
 
-    /* lcd can't handle the speed of DMA transfer when boosted
-     * 11 MHz in bootloader hangs for unknown reason
-     */
-    if ( cpu_frequency == CPUFREQ_NORMAL )
-    {
-        /* Copy display bitmap to hardware using DMA */
-        DSR3 = 1;
-        DAR3 = 0xf0000002;
-        SAR3 = (unsigned long)lcd_framebuffer;
-        BCR3 = LCD_WIDTH*LCD_FBHEIGHT;
-        DCR3 = DMA_BWC(1) | DMA_SINC | DMA_SSIZE(DMA_SIZE_BYTE) |
-               DMA_DSIZE(DMA_SIZE_BYTE) | DMA_START;
-    }
-    else
-    {
-        /* Copy display bitmap to hardware */
-        lcd_write_data (&lcd_framebuffer[0][0], LCD_WIDTH*LCD_FBHEIGHT);
-    }
-
+    /* Copy display bitmap to hardware */
+    lcd_write_data (&lcd_framebuffer[0][0], LCD_WIDTH*LCD_FBHEIGHT);
 }
 
 /* Update a fraction of the display. */