diff --git a/app/include/user_config.h b/app/include/user_config.h
index b62fd87b..6eaebe1b 100644
--- a/app/include/user_config.h
+++ b/app/include/user_config.h
@@ -13,6 +13,8 @@
 // #define FLASH_1M
 // #define FLASH_2M
 // #define FLASH_4M
+// #define FLASH_8M
+// #define FLASH_16M
 #define FLASH_AUTOSIZE
 // #define DEVELOP_VERSION
 #define FULL_VERSION_FOR_USER
diff --git a/app/platform/cpu_esp8266.h b/app/platform/cpu_esp8266.h
index 6e98e18a..75a238dc 100644
--- a/app/platform/cpu_esp8266.h
+++ b/app/platform/cpu_esp8266.h
@@ -25,6 +25,10 @@
 #define FLASH_SEC_NUM 	0x200
 #elif defined(FLASH_4M)
 #define FLASH_SEC_NUM 	0x400
+#elif defined(FLASH_8M)
+#define FLASH_SEC_NUM 	0x800
+#elif defined(FLASH_16M)
+#define FLASH_SEC_NUM 	0x1000
 #elif defined(FLASH_AUTOSIZE)
 #define FLASH_SEC_NUM 	(flash_get_sec_num())
 #else