diff --git a/arm9/source/i2c.h b/arm9/source/i2c.h
index ea944225..f8d85064 100644
--- a/arm9/source/i2c.h
+++ b/arm9/source/i2c.h
@@ -40,6 +40,8 @@ typedef enum
     I2C_DEV_CAMERA    = 1, 	// Unconfirmed
     I2C_DEV_CAMERA2   = 2, 	// Unconfirmed
     I2C_DEV_MCU       = 3,
+    I2C_DEV_LCD_TOP   = 5,
+    I2C_DEV_LCD_BOT   = 6,
     I2C_DEV_GYRO      = 10,
     I2C_DEV_DEBUG_PAD = 12,
     I2C_DEV_IR        = 13,
diff --git a/arm9/source/screen.c b/arm9/source/screen.c
index e82475d5..5644788b 100644
--- a/arm9/source/screen.c
+++ b/arm9/source/screen.c
@@ -70,6 +70,14 @@ void prepareArm11ForFirmlaunch(void)
 void deinitScreens(void)
 {
     if(ARESCREENSINITIALIZED) invokeArm11Function(DEINIT_SCREENS);
+
+    // Backlight voltage off
+    I2C_writeReg(I2C_DEV_MCU, 0x22, 0x14);
+    wait(50);
+
+    // LCD panel voltage off
+    I2C_writeReg(I2C_DEV_MCU, 0x22, 0x01);
+    wait(50);
 }
 
 void updateBrightness(u32 brightnessIndex)
@@ -102,8 +110,31 @@ void initScreens(void)
             memcpy((void *)(ARM11_PARAMETERS_ADDRESS + 4), fbs, sizeof(fbs));
             invokeArm11Function(INIT_SCREENS);
 
-            //Turn on backlight
-            I2C_writeReg(I2C_DEV_MCU, 0x22, 0x2A);
+            // Fragile code, needs proper fix/total rewrite of the baremetal components anyway
+            // Assume controller revision is not 0x00 for either screen (this revision is extremely
+            // old and shouldn't be seen in retail units nor normal devunits)
+
+            // Controller reset off
+            I2C_writeReg(I2C_DEV_LCD_TOP, 0xFE, 0xAA);
+            I2C_writeReg(I2C_DEV_LCD_BOT, 0xFE, 0xAA);
+            wait(5);
+
+            // Controller power on
+            I2C_writeReg(I2C_DEV_LCD_TOP, 0x01, 0x10);
+            I2C_writeReg(I2C_DEV_LCD_BOT, 0x01, 0x10);
+            wait(5);
+
+            // Clear error flag
+            I2C_writeReg(I2C_DEV_LCD_TOP, 0x60, 0x00);
+            I2C_writeReg(I2C_DEV_LCD_BOT, 0x60, 0x00);
+            wait(5);
+
+            // LCD panel (bias ?) voltage on
+            I2C_writeReg(I2C_DEV_MCU, 0x22, 0x02);
+            wait(50);
+
+            // Backlight voltage on
+            I2C_writeReg(I2C_DEV_MCU, 0x22, 0x28);
             wait(5);
         }
         else updateBrightness(MULTICONFIG(BRIGHTNESS));
@@ -122,4 +153,4 @@ void initScreens(void)
 void zerofillN3dsAblRegisters(void)
 {
     invokeArm11Function(ZEROFILL_N3DS_ABL_REGISTERS);
-}
\ No newline at end of file
+}