diff --git a/code/hello_world_01/main/epaper.c b/code/hello_world_01/main/epaper.c
index 6220159..52067e9 100644
--- a/code/hello_world_01/main/epaper.c
+++ b/code/hello_world_01/main/epaper.c
@@ -10,11 +10,11 @@ uint8_t epd_buffer_old[EPD_BUFFER_SIZE] = {0};  // 显存缓冲区
 
 const unsigned char gImage_basemap[9600] = { /* 0X00,0X01,0XF0,0X00,0X40,0X01, */
 0X00,0XF0,0X0F,0XFF,0Xee,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
+0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0X0F,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
+0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0X0F,
 0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
-0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
-0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
-0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
-0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
+0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0X00,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
+0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0X0F,0XFF,0XFF,0XFF,0XFF,
 0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
 0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
 0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,0XFF,
@@ -806,7 +806,7 @@ static void epd_set_ram_from_bitmap(const unsigned char * datas)
     
 
     epd_update();
-    epd_power_off();
+    
 
 }
 
@@ -819,7 +819,7 @@ static void epd_init_vram()
     epd_send_data_bulk(epd_buffer_old, EPD_BUFFER_SIZE);
 
     epd_send_cmd(0x13);
-    memset(epd_buffer, 0xff, EPD_BUFFER_SIZE);
+    memset(epd_buffer, 0x00, EPD_BUFFER_SIZE);
     epd_send_data_bulk(epd_buffer, EPD_BUFFER_SIZE);
 
     epd_send_cmd(0x12);
@@ -841,8 +841,9 @@ esp_err_t epd_init()
     epd_power_on();
 
     epd_init_vram();
-    epd_set_ram_from_bitmap(gImage_basemap);
+    //epd_set_ram_from_bitmap(gImage_basemap);
 
+    epd_power_off();
     epd_deep_sleep();
     
     return ESP_OK;
diff --git a/code/hello_world_01/main/power.c b/code/hello_world_01/main/power.c
index 0723d17..a7fe15b 100644
--- a/code/hello_world_01/main/power.c
+++ b/code/hello_world_01/main/power.c
@@ -320,33 +320,11 @@ void power_sys_off()
 
     ESP_LOGI(TAG, "Starting system shutdown...");
     
-    esp_err_t ret = ESP_OK;
-    
-    // 1. 先关闭充电
-    ret = bq25896_disable_charging();
-    if (ret != ESP_OK) {
-        ESP_LOGE(TAG, "Failed to disable charging");
+    uint8_t write_buf[] = {0x09, 5};
+    esp_err_t ret = i2c_master_transmit(bq25896_handle, write_buf, 2, 1000);
+    if (ret == ESP_OK) {
+        ESP_LOGI(TAG, "shutdown");
     }
-    
-    
-    vTaskDelay(pdMS_TO_TICKS(100));
-    
-    // 2. 关闭 OTG
-    ret = bq25896_disable_otg();
-    if (ret != ESP_OK) {
-        ESP_LOGE(TAG, "Failed to disable OTG");
-    }
-    
-    vTaskDelay(pdMS_TO_TICKS(100));
-    
-    //完全关闭电池供电
-
-        ret = bq25896_enter_shipping_mode();
-        if (ret != ESP_OK) {
-            ESP_LOGE(TAG, "Failed to enter shipping mode");
-        } else {
-            ESP_LOGI(TAG, "SYSTEM COMPLETELY SHUTDOWN");
-        }
  
  
 }