diff --git a/HighwayDemo/README.md b/HighwayDemo/README.md
index 379442f..9729401 100644
--- a/HighwayDemo/README.md
+++ b/HighwayDemo/README.md
@@ -14,8 +14,6 @@ __Wire cables should be as short as possible.__
 I used a 10 cm wire cable.   
 However, it is sometimes affected by noise.   
 
-__Flip upside down cannot be enabled.__   
-
 __This demo does not support 128x32 panels.__   
 
 The SPI interface operates faster than the I2C interface.   
diff --git a/HighwayDemo/main/main.c b/HighwayDemo/main/main.c
index 56ac325..ceae27b 100644
--- a/HighwayDemo/main/main.c
+++ b/HighwayDemo/main/main.c
@@ -631,12 +631,10 @@ void app_main(void)
 	spi_master_init(&dev, CONFIG_MOSI_GPIO, CONFIG_SCLK_GPIO, CONFIG_CS_GPIO, CONFIG_DC_GPIO, CONFIG_RESET_GPIO);
 #endif // CONFIG_SPI_INTERFACE
 
-#if 0
 #if CONFIG_FLIP
 	dev._flip = true;
 	ESP_LOGW(TAG, "Flip upside down");
 #endif
-#endif
 
 #if CONFIG_SSD1306_128x64
 	ESP_LOGI(TAG, "Panel is 128x64");