diff --git a/hardware/firmware/sdkconfig.rymcu-esp32-devkitc b/hardware/firmware/sdkconfig.rymcu-esp32-devkitc
index f99ba72..c482b32 100644
--- a/hardware/firmware/sdkconfig.rymcu-esp32-devkitc
+++ b/hardware/firmware/sdkconfig.rymcu-esp32-devkitc
@@ -399,15 +399,15 @@ CONFIG_ESPTOOLPY_FLASHFREQ_40M=y
 # CONFIG_ESPTOOLPY_FLASHFREQ_20M is not set
 CONFIG_ESPTOOLPY_FLASHFREQ="40m"
 # CONFIG_ESPTOOLPY_FLASHSIZE_1MB is not set
-CONFIG_ESPTOOLPY_FLASHSIZE_2MB=y
-# CONFIG_ESPTOOLPY_FLASHSIZE_4MB is not set
+# CONFIG_ESPTOOLPY_FLASHSIZE_2MB is not set
+CONFIG_ESPTOOLPY_FLASHSIZE_4MB=y
 # CONFIG_ESPTOOLPY_FLASHSIZE_8MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_16MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_32MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_64MB is not set
 # CONFIG_ESPTOOLPY_FLASHSIZE_128MB is not set
-CONFIG_ESPTOOLPY_FLASHSIZE="2MB"
-# CONFIG_ESPTOOLPY_HEADER_FLASHSIZE_UPDATE is not set
+CONFIG_ESPTOOLPY_FLASHSIZE="4MB"
+CONFIG_ESPTOOLPY_HEADER_FLASHSIZE_UPDATE=y
 CONFIG_ESPTOOLPY_BEFORE_RESET=y
 # CONFIG_ESPTOOLPY_BEFORE_NORESET is not set
 CONFIG_ESPTOOLPY_BEFORE="default_reset"