diff --git a/code/sdkconfig.defaults b/code/sdkconfig.defaults
index 6d1038fbc..11587c15d 100644
--- a/code/sdkconfig.defaults
+++ b/code/sdkconfig.defaults
@@ -11,61 +11,7 @@ CONFIG_TASK_WDT_CHECK_IDLE_TASK=n
 CONFIG_COMPILER_OPTIMIZATION_DEFAULT=n
 CONFIG_COMPILER_OPTIMIZATION_SIZE=y
 
-################################ changes #1577
-#better flash mode
-ESPTOOLPY_FLASHMODE_QIO=y
-
-#may trouble very old esp-cam version (work with Chip is ESP32-D0WDQ6 (revision 1))
-ESP32_REV_MIN_3=y
-CONFIG_ESP32_REV_MIN_3=y
-
-#set frequency
-CONFIG_ESP32_DEFAULT_CPU_FREQ_240=y
-CONFIG_ESP32_DEFAULT_CPU_FREQ_MHZ=240
-CONFIG_ESPTOOLPY_FLASHFREQ_80M=y
-SPIRAM_SPEED_80M=y
-
-#disable every logging
-CONFIG_COMPILER_OPTIMIZATION_ASSERTIONS_DISABLE=y
-CONFIG_COMPILER_OPTIMIZATION_ASSERTION_LEVEL=0
-CONFIG_COMPILER_OPTIMIZATION_CHECKS_SILENT=y
-CONFIG_FREERTOS_ASSERT_DISABLE=y
-CONFIG_HAL_DEFAULT_ASSERTION_LEVEL=0
-CONFIG_LOG_DEFAULT_LEVEL_NONE=y
-CONFIG_LOG_DEFAULT_LEVEL=0
-CONFIG_LOG_MAXIMUM_EQUALS_DEFAULT=y
-CONFIG_LWIP_ESP_LWIP_ASSERT=n
-CONFIG_OPTIMIZATION_ASSERTIONS_DISABLED=y
-CONFIG_OPTIMIZATION_ASSERTION_LEVEL=0
-# CONFIG_BOOTLOADER_LOG_LEVEL_NONE is not set
-# CONFIG_BOOTLOADER_LOG_LEVEL_INFO is not set
-CONFIG_BOOTLOADER_LOG_LEVEL=0
-# CONFIG_ESP_ERR_TO_NAME_LOOKUP is not set
-# CONFIG_LOG_COLORS is not set
-
-#disable lookup function
-CONFIG_ESP_ERR_TO_NAME_LOOKUP=n
-# CONFIG_ESP_ERR_TO_NAME_LOOKUP is not set
-
-#no panic message
-ESP_SYSTEM_PANIC_SILENT_REBOOT=y
-
-#disable Access point mode
-CONFIG_ESP_WIFI_SOFTAP_SUPPORT=n
-# CONFIG_ESP_WIFI_SOFTAP_SUPPORT is not set
-
-#disable ADC calibration (needed for external sensors)
-CONFIG_ADC_CAL_EFUSE_TP_ENABLE=n
-CONFIG_ADC_CAL_EFUSE_VREF_ENABLE=n
-CONFIG_ADC_CAL_LUT_ENABLE=needed
-
-#disable IPV6 ()
-CONFIG_LWIP_IPV6=n
-
-#Newlib format
-CONFIG_NEWLIB_NANO_FORMAT=y
-
-################################ END - changes #1577
+CONFIG_ESP32_REV_MIN_0=y
 
 CONFIG_ESP32_DPORT_WORKAROUND=y
 
@@ -82,7 +28,7 @@ CONFIG_PARTITION_TABLE_MD5=y
 CONFIG_ESP32_SPIRAM_SUPPORT=y
 
 CONFIG_SPIRAM_SIZE=-1
-#CONFIG_SPIRAM_SPEED_40M=y ##changes #1577
+CONFIG_SPIRAM_SPEED_40M=y
 CONFIG_SPIRAM=y
 CONFIG_SPIRAM_BOOT_INIT=y
 CONFIG_SPIRAM_USE_MALLOC=y