diff --git a/.github/workflows/build_symbian.yml b/.github/workflows/build_symbian.yml
index 3d1557090..8cbb01a8c 100644
--- a/.github/workflows/build_symbian.yml
+++ b/.github/workflows/build_symbian.yml
@@ -54,6 +54,18 @@ jobs:
         with:
           SOURCE_FILE: 'SDK/epoc32/release/armv5/urel/ClassiCube_s60v3.exe'
           DEST_NAME: 'ClassiCube_s60v3.exe'
+
+      - uses: ./.github/actions/upload_build
+        if: ${{ always() && steps.compile.outcome == 'success' }}
+        with:
+          SOURCE_FILE: 'SDK/epoc32/release/armv5/urel/ClassiCube_s60v5.exe.sym'
+          DEST_NAME: 'ClassiCube_s60v5.elf'
+
+      - uses: ./.github/actions/upload_build
+        if: ${{ always() && steps.compile.outcome == 'success' }}
+        with:
+          SOURCE_FILE: 'SDK/epoc32/release/armv5/urel/ClassiCube_s60v3.exe.sym'
+          DEST_NAME: 'ClassiCube_s60v3.elf'
           
           
       - uses: ./.github/actions/notify_success
diff --git a/src/Errors.h b/src/Errors.h
index 4f0bd1021..e198e5d55 100644
--- a/src/Errors.h
+++ b/src/Errors.h
@@ -138,5 +138,6 @@ enum CC_ERRORS {
 	SSL_ERR_CONTEXT_DEAD = 0xCCDED070UL, /* Server shutdown the SSL context and it must be recreated */
 	PNG_ERR_16BITSAMPLES = 0xCCDED071UL, /* Image uses 16 bit samples, which is unimplemented */
 	ERR_NO_NETWORKING    = 0xCCDED072UL, /* No working network connection */
+	ERR_NON_WRITABLE_FS  = 0xCCDED073UL, /* No writable filesystem detected */
 };
 #endif
diff --git a/src/Logger.c b/src/Logger.c
index b614179b5..6a29dc8c1 100644
--- a/src/Logger.c
+++ b/src/Logger.c
@@ -116,9 +116,10 @@ static const char* GetCCErrorDesc(cc_result res) {
 	case NBT_ERR_EXPECTED_ARR: return "Expected ByteArray NBT tag";
 	case NBT_ERR_ARR_TOO_SMALL:return "ByteArray NBT tag too small";
 
-	case HTTP_ERR_NO_SSL: return "HTTPS URLs are not currently supported";
+	case HTTP_ERR_NO_SSL:       return "HTTPS URLs are not currently supported";
 	case SOCK_ERR_UNKNOWN_HOST: return "Host could not be resolved to an IP address";
-	case ERR_NO_NETWORKING: return "No working network access";
+	case ERR_NO_NETWORKING:     return "No working network access";
+	case ERR_NON_WRITABLE_FS:   return "Non-writable filesystem";
 	}
 	return NULL;
 }
diff --git a/src/gcwii/Platform_GCWii.h b/src/gcwii/Platform_GCWii.h
index 0a5e86f36..1ff38b227 100644
--- a/src/gcwii/Platform_GCWii.h
+++ b/src/gcwii/Platform_GCWii.h
@@ -94,7 +94,7 @@ void Platform_EncodePath(cc_filepath* dst, const cc_string* path) {
 void Directory_GetCachePath(cc_string* path) { }
 
 cc_result Directory_Create(const cc_filepath* path) {
-	if (!fat_available) return ENOSYS;
+	if (!fat_available) return ERR_NON_WRITABLE_FS;
 
 	return mkdir(path->buffer, 0) == -1 ? errno : 0;
 }
@@ -157,12 +157,12 @@ cc_result File_Open(cc_file* file, const cc_filepath* path) {
 }
 
 cc_result File_Create(cc_file* file, const cc_filepath* path) {
-	if (!fat_available) return ENOTSUP;
+	if (!fat_available) return ERR_NON_WRITABLE_FS;
 	return File_Do(file, path->buffer, O_RDWR | O_CREAT | O_TRUNC);
 }
 
 cc_result File_OpenOrCreate(cc_file* file, const cc_filepath* path) {
-	if (!fat_available) return ENOTSUP;
+	if (!fat_available) return ERR_NON_WRITABLE_FS;
 	return File_Do(file, path->buffer, O_RDWR | O_CREAT);
 }
 
diff --git a/src/nds/Platform_NDS.c b/src/nds/Platform_NDS.c
index e899947b8..713c1258e 100644
--- a/src/nds/Platform_NDS.c
+++ b/src/nds/Platform_NDS.c
@@ -286,12 +286,12 @@ cc_result File_Open(cc_file* file, const cc_filepath* path) {
 }
 
 cc_result File_Create(cc_file* file, const cc_filepath* path) {
-	if (!fat_available) return ENOTSUP;
+	if (!fat_available) return ERR_NON_WRITABLE_FS;
 	return File_Do(file, path->buffer, O_RDWR | O_CREAT | O_TRUNC, "Create");
 }
 
 cc_result File_OpenOrCreate(cc_file* file, const cc_filepath* path) {
-	if (!fat_available) return ENOTSUP;
+	if (!fat_available) return ERR_NON_WRITABLE_FS;
 	return File_Do(file, path->buffer, O_RDWR | O_CREAT, "Update");
 }
 
diff --git a/src/xbox360/Platform_Xbox360.c b/src/xbox360/Platform_Xbox360.c
index 34626b334..a746dc6b5 100644
--- a/src/xbox360/Platform_Xbox360.c
+++ b/src/xbox360/Platform_Xbox360.c
@@ -107,7 +107,7 @@ void Platform_EncodePath(cc_filepath* dst, const cc_string* path) {
 void Directory_GetCachePath(cc_string* path) { }
 
 cc_result Directory_Create(const cc_filepath* path) {
-	if (!fat_available) return ENOSYS;
+	if (!fat_available) return ERR_NON_WRITABLE_FS;
 
 	return mkdir(path->buffer, 0) == -1 ? errno : 0;
 }
@@ -170,12 +170,12 @@ cc_result File_Open(cc_file* file, const cc_filepath* path) {
 }
 
 cc_result File_Create(cc_file* file, const cc_filepath* path) {
-	if (!fat_available) return ENOTSUP;
+	if (!fat_available) return ERR_NON_WRITABLE_FS;
 	return File_Do(file, path->buffer, O_RDWR | O_CREAT | O_TRUNC);
 }
 
 cc_result File_OpenOrCreate(cc_file* file, const cc_filepath* path) {
-	if (!fat_available) return ENOTSUP;
+	if (!fat_available) return ERR_NON_WRITABLE_FS;
 	return File_Do(file, path->buffer, O_RDWR | O_CREAT);
 }