diff --git a/stratosphere/ams_mitm/source/fs_mitm/fsmitm_service.cpp b/stratosphere/ams_mitm/source/fs_mitm/fsmitm_service.cpp
index 9541f2d4e..85e48bd0a 100644
--- a/stratosphere/ams_mitm/source/fs_mitm/fsmitm_service.cpp
+++ b/stratosphere/ams_mitm/source/fs_mitm/fsmitm_service.cpp
@@ -189,7 +189,7 @@ Result FsMitmService::OpenBisStorage(Out<std::shared_ptr<IStorageInterface>> out
                 } else {
                     /* Do not allow non-sysmodules to read *or* write CAL0. */
                     fsStorageClose(&bis_storage);
-                    return 0x320002;
+                    return ResultFsPermissionDenied;
                 }
             } else {
                 if (is_sysmodule || has_bis_write_flag) {
diff --git a/stratosphere/ams_mitm/source/utils.cpp b/stratosphere/ams_mitm/source/utils.cpp
index df507ae54..e6f9d6ab2 100644
--- a/stratosphere/ams_mitm/source/utils.cpp
+++ b/stratosphere/ams_mitm/source/utils.cpp
@@ -237,7 +237,7 @@ bool Utils::IsHidAvailable() {
 
 Result Utils::OpenSdFile(const char *fn, int flags, FsFile *out) {
     if (!IsSdInitialized()) {
-        return 0xFA202;
+        return ResultFsSdCardNotPresent;
     }
     
     return fsFsOpenFile(&g_sd_filesystem, fn, flags, out);
@@ -245,7 +245,7 @@ Result Utils::OpenSdFile(const char *fn, int flags, FsFile *out) {
 
 Result Utils::OpenSdFileForAtmosphere(u64 title_id, const char *fn, int flags, FsFile *out) {
     if (!IsSdInitialized()) {
-        return 0xFA202;
+        return ResultFsSdCardNotPresent;
     }
     
     char path[FS_MAX_PATH];
@@ -259,7 +259,7 @@ Result Utils::OpenSdFileForAtmosphere(u64 title_id, const char *fn, int flags, F
 
 Result Utils::OpenRomFSSdFile(u64 title_id, const char *fn, int flags, FsFile *out) {
     if (!IsSdInitialized()) {
-        return 0xFA202;
+        return ResultFsSdCardNotPresent;
     }
     
     return OpenRomFSFile(&g_sd_filesystem, title_id, fn, flags, out);
@@ -267,7 +267,7 @@ Result Utils::OpenRomFSSdFile(u64 title_id, const char *fn, int flags, FsFile *o
 
 Result Utils::OpenSdDir(const char *path, FsDir *out) {
     if (!IsSdInitialized()) {
-        return 0xFA202;
+        return ResultFsSdCardNotPresent;
     }
     
     return fsFsOpenDirectory(&g_sd_filesystem, path, FS_DIROPEN_DIRECTORY | FS_DIROPEN_FILE, out);
@@ -275,7 +275,7 @@ Result Utils::OpenSdDir(const char *path, FsDir *out) {
 
 Result Utils::OpenSdDirForAtmosphere(u64 title_id, const char *path, FsDir *out) {
     if (!IsSdInitialized()) {
-        return 0xFA202;
+        return ResultFsSdCardNotPresent;
     }
     
     char safe_path[FS_MAX_PATH];
@@ -289,7 +289,7 @@ Result Utils::OpenSdDirForAtmosphere(u64 title_id, const char *path, FsDir *out)
 
 Result Utils::OpenRomFSSdDir(u64 title_id, const char *path, FsDir *out) {
     if (!IsSdInitialized()) {
-        return 0xFA202;
+        return ResultFsSdCardNotPresent;
     }
     
     return OpenRomFSDir(&g_sd_filesystem, title_id, path, out);
@@ -340,7 +340,7 @@ bool Utils::HasSdRomfsContent(u64 title_id) {
 
 Result Utils::SaveSdFileForAtmosphere(u64 title_id, const char *fn, void *data, size_t size) {
     if (!IsSdInitialized()) {
-        return 0xFA202;
+        return ResultFsSdCardNotPresent;
     }
     
     Result rc = 0;
diff --git a/stratosphere/dmnt/source/dmnt_service_target_io.cpp b/stratosphere/dmnt/source/dmnt_service_target_io.cpp
index 0a3d71496..540e555a8 100644
--- a/stratosphere/dmnt/source/dmnt_service_target_io.cpp
+++ b/stratosphere/dmnt/source/dmnt_service_target_io.cpp
@@ -62,7 +62,7 @@ static Result GetFileByHandle(FsFile *out, u64 handle) {
         *out = g_file_handles[handle];
         return 0;
     }
-    return 0x2EE202;
+    return ResultFsInvalidArgument;
 }
 
 static Result CloseFileByHandle(u64 handle) {
@@ -72,7 +72,7 @@ static Result CloseFileByHandle(u64 handle) {
         g_file_handles.erase(handle);
         return 0;
     }
-    return 0x2EE202;
+    return ResultFsInvalidArgument;
 }
 
 static void FixPath(char *dst, size_t dst_size, InBuffer<char> &path) {
diff --git a/stratosphere/libstratosphere b/stratosphere/libstratosphere
index a3ca9cf1a..033c77716 160000
--- a/stratosphere/libstratosphere
+++ b/stratosphere/libstratosphere
@@ -1 +1 @@
-Subproject commit a3ca9cf1a352899b3a4289e210f094997cbacbaf
+Subproject commit 033c77716cece22ad1ee0d606f75c4659ff4ed76
diff --git a/stratosphere/loader/source/ldr_content_management.cpp b/stratosphere/loader/source/ldr_content_management.cpp
index 6087138d3..e4943a8c4 100644
--- a/stratosphere/loader/source/ldr_content_management.cpp
+++ b/stratosphere/loader/source/ldr_content_management.cpp
@@ -462,7 +462,7 @@ Result ContentManagement::SetExternalContentSource(u64 tid, FsFileSystem filesys
     char mountpoint[32];
     ExternalContentSource::GenerateMountpointName(tid, mountpoint, sizeof(mountpoint));
     if (fsdevMountDevice(mountpoint, filesystem) == -1) {
-        return 0x7802; /* specified mount name already exists */
+        return ResultFsMountNameAlreadyExists;
     }
     g_external_content_sources.emplace(
         std::piecewise_construct,