diff --git a/sw_usb_audio/app_usb_aud_phaten_golden/src/extensions/dsp.c b/sw_usb_audio/app_usb_aud_phaten_golden/src/extensions/dsp.c
index cb34cf8..a6bf7f6 100644
--- a/sw_usb_audio/app_usb_aud_phaten_golden/src/extensions/dsp.c
+++ b/sw_usb_audio/app_usb_aud_phaten_golden/src/extensions/dsp.c
@@ -746,6 +746,7 @@ void hid_button_task(chanend_t cc_mic_level, chanend_t c_hidRcvData, chanend_t c
     static uint8_t leds1_val = 1;   // LED off
     static uint8_t is_mute_t1 = 0;
     static uint8_t mute_tmr;
+    unsigned key_enable = 0;
     uint8_t tmp = 0;
 
     static uint8_t is_stable = 1;
@@ -859,6 +860,7 @@ void hid_button_task(chanend_t cc_mic_level, chanend_t c_hidRcvData, chanend_t c
                 }
                 port_out(p_leds, leds1_val);
                 port_out(p_leds2, leds2_val);
+                key_enable = 1;
                 // 模式接收完成后继续，不处理按键
             } else {
                 // 正常的mic level命令处理
@@ -934,6 +936,7 @@ void hid_button_task(chanend_t cc_mic_level, chanend_t c_hidRcvData, chanend_t c
         {
             hwtimer_set_trigger_time(timer, hwtimer_get_time(timer) + KEY_POLLING_INTERVAL);
             //uint32_t key_in = port_in_when_pinsneq(p_keys, PORT_UNBUFFERED, last_status);
+            if (key_enable == 1) {
             uint32_t key_in = port_in(p_keys);
         //    debug_printf("event_polling: key_in=0x%08X, last_status=0x%08X, is_stable=%d, press_hold_cnt=%d\n",
         //                 key_in, last_status, is_stable, press_hold_cnt);
@@ -1035,27 +1038,8 @@ void hid_button_task(chanend_t cc_mic_level, chanend_t c_hidRcvData, chanend_t c
             else {
                 blink_counter = 0;
             }
-#if 0
-            if (current_mode_local == 0) {
-               leds2_val |= (1<<BLUE_LED_PIN);     // Blue LED off
-               leds1_val |= 1;                      // Red LED off
-               port_out(p_leds, leds1_val);
-               port_out(p_leds2, leds2_val);
-            }
-            else if (current_mode_local == 1) {
-               leds1_val &= (~1);                   // Red LED on
-               leds2_val |= (1<<BLUE_LED_PIN);     // Blue LED off
-               port_out(p_leds, leds1_val);
-               port_out(p_leds2, leds2_val);
-            }
-            else if (current_mode_local == 2) {
-                leds2_val &= (~(1<<BLUE_LED_PIN));   // Blue LED on
-                leds1_val |= 1;                      // Red LED off
-                port_out(p_leds, leds1_val);
-                port_out(p_leds2, leds2_val);
-            }
-#endif
         }
+       }
         continue;
         }
     }