diff --git a/APP/peripheral.c b/APP/peripheral.c
index d106c08..6772a55 100644
--- a/APP/peripheral.c
+++ b/APP/peripheral.c
@@ -40,7 +40,7 @@
 #define SBP_PHY_UPDATE_DELAY                 2400
 
 // What is the advertising interval when device is discoverable (units of 625us, 80=50ms)
-#define DEFAULT_ADVERTISING_INTERVAL         (160 * 1)
+#define DEFAULT_ADVERTISING_INTERVAL         (160 * 10)
 
 // Limited discoverable mode advertises for 30.72s, and then stops
 // General discoverable mode advertises indefinitely
diff --git a/APP/peripheral_main.c b/APP/peripheral_main.c
index 2828032..256074f 100644
--- a/APP/peripheral_main.c
+++ b/APP/peripheral_main.c
@@ -84,22 +84,17 @@ __attribute__((noinline)) void Main_Circulation()
             EMV_CHARGE_EN;
             PRINT("EMV_CHARGE_EN\n");
 
-            DelayMs(500);
+            // DelayMs(500);
 
-            EMV_CHARGE_OFF_DEINIT;
-            PRINT("EMV_CHARGE_OFF_DEINIT 1s\n");
+            // EMV_CHARGE_OFF_DEINIT;
+            // PRINT("EMV_CHARGE_OFF_DEINIT 1s\n");
 
-            // 12V_EN
-            GPIOB_ResetBits(GPIO_Pin_14);
-            GPIOB_ModeCfg(GPIO_Pin_14, GPIO_ModeOut_PP_5mA);
-            PRINT("12V_EN OFF\n");
-
-            DelayMs(3000);
+            DelayMs(1000);
 
             // EMV_CTRL
             EMV_ON;
             PRINT("EMV_ON\n");
-            DelayMs(100);
+            DelayMs(1000);
 
             BOOST_OFF_DEINIT;
             BEEP_OFF_DEINIT;