diff --git a/platformio.ini b/platformio.ini
index d3b71d3c..430263b7 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -249,9 +249,8 @@ lib_deps =
 ;;
 ;; please note that you can NOT update existing ESP32 installs with a "V4" build. Also updating by OTA will not work properly.
 ;; You need to completely erase your device (esptool erase_flash) first, then install the "V4" build from VSCode+platformio.
-platform = espressif32@5.2.0
+platform = espressif32@5.3.0
 platform_packages =
-  toolchain-riscv32-esp @ 8.4.0+2021r2-patch5 ; required for platform version < 5.3.0, remove this line when upgrading to platform >=5.3.0
 build_flags = -g
   -Wshadow=compatible-local ;; emit warning in case a local variable "shadows" another local one
   -DARDUINO_ARCH_ESP32 -DESP32
@@ -265,9 +264,8 @@ lib_deps =
 
 [esp32s2]
 ;; generic definitions for all ESP32-S2 boards
-platform = espressif32@5.2.0
+platform = espressif32@5.3.0
 platform_packages =
-  toolchain-riscv32-esp @ 8.4.0+2021r2-patch5 ; required for platform version < 5.3.0, remove this line when upgrading to platform >=5.3.0
 build_flags = -g
   -DARDUINO_ARCH_ESP32
   -DARDUINO_ARCH_ESP32S2
@@ -285,9 +283,8 @@ lib_deps =
 
 [esp32c3]
 ;; generic definitions for all ESP32-C3 boards
-platform = espressif32@5.2.0
+platform = espressif32@5.3.0
 platform_packages =
-  toolchain-riscv32-esp @ 8.4.0+2021r2-patch5 ; required for platform version < 5.3.0, remove this line when upgrading to platform >=5.3.0
 build_flags = -g
   -DARDUINO_ARCH_ESP32
   -DARDUINO_ARCH_ESP32C3
@@ -304,9 +301,8 @@ lib_deps =
 
 [esp32s3]
 ;; generic definitions for all ESP32-S3 boards
-platform = espressif32@5.2.0
+platform = espressif32@5.3.0
 platform_packages =
-  toolchain-riscv32-esp @ 8.4.0+2021r2-patch5 ; required for platform version < 5.3.0, remove this line when upgrading to platform >=5.3.0
 build_flags = -g
   -DESP32
   -DARDUINO_ARCH_ESP32
diff --git a/tools/WLED_ESP32_16MB_9MB_FS.csv b/tools/WLED_ESP32_16MB_9MB_FS.csv
new file mode 100644
index 00000000..f2f3f778
--- /dev/null
+++ b/tools/WLED_ESP32_16MB_9MB_FS.csv
@@ -0,0 +1,8 @@
+# Name,   Type, SubType, Offset,  Size, Flags
+nvs,      data, nvs,     0x9000,  0x5000,
+otadata,  data, ota,     0xe000,  0x2000,
+app0,     app,  ota_0,   0x10000, 0x300000,
+app1,     app,  ota_1,   0x310000,0x300000,
+spiffs,   data, spiffs,  0x610000,0x9E0000,
+coredump, data, coredump,,64K
+# to create/use ffat, see https://github.com/marcmerlin/esp32_fatfsimage
\ No newline at end of file
diff --git a/tools/WLED_ESP32_8MB.csv b/tools/WLED_ESP32_8MB.csv
index 5e930b89..3cf3afc3 100644
--- a/tools/WLED_ESP32_8MB.csv
+++ b/tools/WLED_ESP32_8MB.csv
@@ -3,4 +3,5 @@ nvs,      data, nvs,     0x9000,  0x5000,
 otadata,  data, ota,     0xe000,  0x2000,
 app0,     app,  ota_0,   0x10000, 0x200000,
 app1,     app,  ota_1,   0x210000,0x200000,
-spiffs,   data, spiffs,  0x410000,0x3F0000,
\ No newline at end of file
+spiffs,   data, spiffs,  0x410000,0x3E0000,
+coredump, data, coredump,,64K