diff --git a/.github/workflows/gitea-release.yml b/.github/workflows/gitea-release.yml
index aea5a55..a010215 100644
--- a/.github/workflows/gitea-release.yml
+++ b/.github/workflows/gitea-release.yml
@@ -40,8 +40,8 @@ jobs:
         # Copy firmware binary
         cp .pio/build/esp32dev/firmware.bin .pio/build/esp32dev/upgrade_filaman_firmware_v${VERSION}.bin
         
-        # Create SPIFFS binary with correct chip revision
-        ( printf '\xe9\x03\x01\x00' && cat .pio/build/esp32dev/spiffs.bin ) > .pio/build/esp32dev/upgrade_filaman_website_v${VERSION}.bin
+        # Create SPIFFS binary with correct chip revision (0xEB for Rev 3)
+        ( printf '\xeb\x03\x01\x00' && cat .pio/build/esp32dev/spiffs.bin ) > .pio/build/esp32dev/upgrade_filaman_website_v${VERSION}.bin
         
         # Create full binary
         (cd .pio/build/esp32dev && 
diff --git a/.github/workflows/github-release.yml b/.github/workflows/github-release.yml
index 21748a2..a237e2d 100644
--- a/.github/workflows/github-release.yml
+++ b/.github/workflows/github-release.yml
@@ -47,8 +47,8 @@ jobs:
         # Copy firmware binary
         cp .pio/build/esp32dev/firmware.bin .pio/build/esp32dev/upgrade_filaman_firmware_v${VERSION}.bin
         
-        # Create SPIFFS binary with correct chip revision
-        ( printf '\xe9\x03\x01\x00' && cat .pio/build/esp32dev/spiffs.bin ) > .pio/build/esp32dev/upgrade_filaman_website_v${VERSION}.bin
+        # Create SPIFFS binary with correct chip revision (0xEB for Rev 3)
+        ( printf '\xeb\x03\x01\x00' && cat .pio/build/esp32dev/spiffs.bin ) > .pio/build/esp32dev/upgrade_filaman_website_v${VERSION}.bin
         
         # Create full binary (always)
         (cd .pio/build/esp32dev &&