diff --git a/build/gcdfirm/sdmc-launcher/ARM7/main.c b/build/gcdfirm/sdmc-launcher/ARM7/main.c
index 8428f33c..9d98a52d 100644
--- a/build/gcdfirm/sdmc-launcher/ARM7/main.c
+++ b/build/gcdfirm/sdmc-launcher/ARM7/main.c
@@ -113,10 +113,8 @@ static void PreInit(void)
 ***************************************************************/
 static void PostInit(void)
 {
-#if SDK_TS_VERSION <= 200
-    // PMICの設定 for old version
-    PM_InitFIRM();
-#endif
+    PM_BackLightOn( TRUE ); // ARM9側画面表示のため
+
     // マウント情報の初期化
     FS_InitMountInfo(FALSE, TRUE);
     // アイドルスレッドの作成
@@ -278,13 +276,6 @@ void TwlSpMain( void )
 #endif
     SetDebugLED( 0 );
 
-#if SDK_TS_VERSION < 300
-    PMi_SetParams( REG_PMIC_BL_BRT_B_ADDR, 22, PMIC_BL_BRT_B_MASK );
-#else
-    MCUi_WriteRegister( MCU_REG_BL_ADDR, MCU_REG_BL_BRIGHTNESS_MASK );
-#endif
-    PM_BackLightOn( TRUE );
-
     AESi_ResetAesKeyA();
     AESi_ResetAesKeyB();
     AESi_ResetAesKeyC();
diff --git a/build/nandfirm/sdmc-launcher/ARM7/main.c b/build/nandfirm/sdmc-launcher/ARM7/main.c
index 8b87d72c..c2c6314f 100644
--- a/build/nandfirm/sdmc-launcher/ARM7/main.c
+++ b/build/nandfirm/sdmc-launcher/ARM7/main.c
@@ -119,6 +119,8 @@ static void PreInit(void)
 ***************************************************************/
 static void PostInit(void)
 {
+    PM_BackLightOn( TRUE ); // ARM9側画面表示のため
+
     /*
         AES関連 (NAND暗号化の鍵変更を含む)
     */
@@ -289,13 +291,6 @@ void TwlSpMain( void )
 #endif
     SetDebugLED( 0 );
 
-#if SDK_TS_VERSION < 300
-    PMi_SetParams( REG_PMIC_BL_BRT_B_ADDR, 22, PMIC_BL_BRT_B_MASK );
-#else
-    MCUi_WriteRegister( MCU_REG_BL_ADDR, MCU_REG_BL_BRIGHTNESS_MASK );
-#endif
-    PM_BackLightOn( TRUE );
-
     SYSMi_SetAESKeysForAccessControl(FALSE, rh);
     MI_CpuClearFast( OSi_GetFromFirmAddr(), sizeof(OSFromFirmBuf) );
     FS_SetMountInfoForSrl();