diff --git a/zephyr/prj.conf b/zephyr/prj.conf
index e6d30e5..25e02de 100644
--- a/zephyr/prj.conf
+++ b/zephyr/prj.conf
@@ -10,25 +10,17 @@ CONFIG_ENTROPY_GENERATOR=y
 CONFIG_MBEDTLS=y
 CONFIG_MBEDTLS_USER_CONFIG_ENABLE=y
 CONFIG_MBEDTLS_USER_CONFIG_FILE="user-tls.conf"
-#CONFIG_MBEDTLS_ENABLE_HEAP=y
-#CONFIG_MBEDTLS_HEAP_SIZE=4096
+CONFIG_MBEDTLS_ENABLE_HEAP=y
+CONFIG_MBEDTLS_HEAP_SIZE=4096
 
 #CONFIG_BT_HCI_TX_STACK_SIZE=1024
 CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=2048
 
 CONFIG_DISPLAY=y
-CONFIG_CHARACTER_FRAMEBUFFER=y
 CONFIG_SPI=y
 CONFIG_ST7789V=y
-CONFIG_HEAP_MEM_POOL_SIZE=8192
+CONFIG_HEAP_MEM_POOL_SIZE=1024
 
 CONFIG_GPIO=y
 CONFIG_LED=y
 CONFIG_ADC=y
-
-#CONFIG_LVGL=y
-#CONFIG_LVGL_USE_LABEL=y
-#CONFIG_LVGL_USE_CONT=y
-#CONFIG_LVGL_USE_BTN=y
-#CONFIG_LVGL_USE_THEME_MATERIAL=y
-#CONFIG_LVGL_DISPLAY_DEV_NAME="ST7789V"
\ No newline at end of file