diff --git a/Arduino UNO/epd2in13_V2/epd2in13_V2.cpp b/Arduino UNO/epd2in13_V2/epd2in13_V2.cpp
index be50568..f1ec30a 100644
--- a/Arduino UNO/epd2in13_V2/epd2in13_V2.cpp	
+++ b/Arduino UNO/epd2in13_V2/epd2in13_V2.cpp	
@@ -326,10 +326,6 @@ void Epd::DisplayPart(const unsigned char* frame_buffer)
  */
 void Epd::Sleep()
 {
-    SendCommand(0x22); //POWER OFF
-    SendData(0xC3);
-    SendCommand(0x20);
-
     SendCommand(0x10); //enter deep sleep
     SendData(0x01);
     DelayMs(200);
diff --git a/RaspberryPi&JetsonNano/c/lib/e-Paper/EPD_2in13_V2.c b/RaspberryPi&JetsonNano/c/lib/e-Paper/EPD_2in13_V2.c
index a0bf1a4..9f541f6 100644
--- a/RaspberryPi&JetsonNano/c/lib/e-Paper/EPD_2in13_V2.c
+++ b/RaspberryPi&JetsonNano/c/lib/e-Paper/EPD_2in13_V2.c
@@ -354,10 +354,6 @@ parameter:
 ******************************************************************************/
 void EPD_2IN13_V2_Sleep(void)
 {
-    EPD_2IN13_V2_SendCommand(0x22); //POWER OFF
-    EPD_2IN13_V2_SendData(0xC3);
-    EPD_2IN13_V2_SendCommand(0x20);
-
     EPD_2IN13_V2_SendCommand(0x10); //enter deep sleep
     EPD_2IN13_V2_SendData(0x01);
     DEV_Delay_ms(100);
diff --git a/RaspberryPi&JetsonNano/python/lib/waveshare_epd/epd2in13_V2.py b/RaspberryPi&JetsonNano/python/lib/waveshare_epd/epd2in13_V2.py
index fe532f4..0d1f328 100644
--- a/RaspberryPi&JetsonNano/python/lib/waveshare_epd/epd2in13_V2.py
+++ b/RaspberryPi&JetsonNano/python/lib/waveshare_epd/epd2in13_V2.py
@@ -302,10 +302,6 @@ class EPD:
         self.TurnOnDisplay()
 
     def sleep(self):
-        self.send_command(0x22) #POWER OFF
-        self.send_data(0xC3)
-        self.send_command(0x20)
-
         self.send_command(0x10) #enter deep sleep
         self.send_data(0x01)
         epdconfig.delay_ms(100)
diff --git a/STM32/STM32-F103ZET6/User/e-Paper/EPD_2in13_V2.c b/STM32/STM32-F103ZET6/User/e-Paper/EPD_2in13_V2.c
index a0bf1a4..9f541f6 100644
--- a/STM32/STM32-F103ZET6/User/e-Paper/EPD_2in13_V2.c
+++ b/STM32/STM32-F103ZET6/User/e-Paper/EPD_2in13_V2.c
@@ -354,10 +354,6 @@ parameter:
 ******************************************************************************/
 void EPD_2IN13_V2_Sleep(void)
 {
-    EPD_2IN13_V2_SendCommand(0x22); //POWER OFF
-    EPD_2IN13_V2_SendData(0xC3);
-    EPD_2IN13_V2_SendCommand(0x20);
-
     EPD_2IN13_V2_SendCommand(0x10); //enter deep sleep
     EPD_2IN13_V2_SendData(0x01);
     DEV_Delay_ms(100);