diff --git a/rEFIt_UEFI/Platform/AcpiPatcher.cpp b/rEFIt_UEFI/Platform/AcpiPatcher.cpp
index b22860d55..ab37b58f6 100644
--- a/rEFIt_UEFI/Platform/AcpiPatcher.cpp
+++ b/rEFIt_UEFI/Platform/AcpiPatcher.cpp
@@ -306,9 +306,10 @@ void GetAcpiTablesList()
     UINT32 Count = XsdtTableCount();
     UINT64* Ptr = XsdtEntryPtrFromIndex(0);
     UINT64* EndPtr = XsdtEntryPtrFromIndex(Count);
-    DBG("from XSDT:\n");
+    DBG("from XSDT: count=%u\n", Count);
     for (; Ptr < EndPtr; Ptr++) {
       EFI_ACPI_DESCRIPTION_HEADER* Table = (EFI_ACPI_DESCRIPTION_HEADER*)(UINTN)ReadUnaligned64(Ptr);
+//      DBG("X: Table=%16llX\n", (UINTN)Table);
       if (!Table) {
         // skip NULL entry
         continue;
@@ -316,12 +317,14 @@ void GetAcpiTablesList()
       AddDropTable(Table, IndexFromXsdtEntryPtr(Ptr));
     }
   } else if (Rsdt) {
-    DBG("from RSDT:\n");
+
     UINT32 Count = RsdtTableCount();
+    DBG("from RSDT: count=%u\n", Count);
     UINT32* Ptr = RsdtEntryPtrFromIndex(0);
     UINT32* EndPtr = RsdtEntryPtrFromIndex(Count);
     for (; Ptr < EndPtr; Ptr++) {
       EFI_ACPI_DESCRIPTION_HEADER* Table = (EFI_ACPI_DESCRIPTION_HEADER*)(UINTN)*Ptr;
+ //     DBG("R: Table=%16llX\n", (UINTN)Table);
       if (!Table) {
         // skip NULL entry
         continue;
@@ -1239,16 +1242,26 @@ EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE* GetFadt()
   //  EFI_STATUS      Status;
 
   RsdPtr = (__typeof__(RsdPtr))FindAcpiRsdPtr();
+//  DBG("0: RsdPtr=%16llX\n", (UINTN)RsdPtr);
   if (RsdPtr == NULL) {
     /*Status = */EfiGetSystemConfigurationTable (&gEfiAcpi20TableGuid, (void **)&RsdPtr);
     if (RsdPtr == NULL) {
       /*Status = */EfiGetSystemConfigurationTable (&gEfiAcpi10TableGuid, (void **)&RsdPtr);
+ //     DBG("1: RsdPtr=%16llX\n", (UINTN)RsdPtr);
       if (RsdPtr == NULL) {
         return NULL;
       }
     }
   }
+//  DBG("2: RsdPtr=%16llX\n", (UINTN)RsdPtr);
+//  DBG(" Rsdt=%08X\n", (UINT32)(RsdPtr->RsdtAddress));
+//  DBG(" Xsdt=%16llX\n", (UINTN)(RsdPtr->XsdtAddress));  //==0
+//  DBG(" RsdPtr->Revision=%16llX\n", (UINTN)(RsdPtr->Revision)); //==0
+
   Rsdt = (RSDT_TABLE*)(UINTN)(RsdPtr->RsdtAddress);
+//  if (Rsdt) {
+//    DBG(" Rsdt->Header.Signature=%16llX\n", (UINTN)(Rsdt->Header.Signature));
+//  }
   if (RsdPtr->Revision > 0) {
     if (Rsdt == NULL || Rsdt->Header.Signature != EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE) {
       Xsdt = (XSDT_TABLE *)(UINTN)(RsdPtr->XsdtAddress);
@@ -1262,6 +1275,17 @@ EFI_ACPI_2_0_FIXED_ACPI_DESCRIPTION_TABLE* GetFadt()
     /*Status = */EfiGetSystemConfigurationTable (&gEfiAcpi20TableGuid, (void**)&RsdPtr);
     if (RsdPtr != NULL) {
       DBG("Found UEFI Acpi 2.0 RSDP at %llx\n", (uintptr_t)RsdPtr);
+
+//      DBG("3: RsdPtr=%16llX\n", (UINTN)RsdPtr);
+//      DBG(" Rsdt=%08X\n", (UINT32)(RsdPtr->RsdtAddress));
+//      DBG(" Xsdt=%16llX\n", (UINTN)(RsdPtr->XsdtAddress));
+//      DBG(" RsdPtr->Revision=%16llX\n", (UINTN)(RsdPtr->Revision));
+
+      Rsdt = (RSDT_TABLE*)(UINTN)(RsdPtr->RsdtAddress);
+//      if (Rsdt) {
+//        DBG(" Rsdt->Header.Signature=%16llX\n", (UINTN)(Rsdt->Header.Signature));
+//      }
+
       Rsdt = (RSDT_TABLE*)(UINTN)(RsdPtr->RsdtAddress);
       if (RsdPtr->Revision > 0) {
         if (Rsdt == NULL || Rsdt->Header.Signature != EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_TABLE_SIGNATURE) {
diff --git a/rEFIt_UEFI/Platform/StartupSound.cpp b/rEFIt_UEFI/Platform/StartupSound.cpp
index ba982f40b..1afb47aab 100644
--- a/rEFIt_UEFI/Platform/StartupSound.cpp
+++ b/rEFIt_UEFI/Platform/StartupSound.cpp
@@ -239,7 +239,7 @@ DONE_ERROR:
     // and we can't free memory up to stop AsyncPlay
     FreeAlignedPages(WaveData.Samples, EFI_SIZE_TO_PAGES(WaveData.SamplesLength + 4095));
   }
-  DBG("sound play end with status=%s\n", efiStrError(Status));
+//  DBG("sound play end with status=%s\n", efiStrError(Status));
   return Status;
 }
 
diff --git a/rEFIt_UEFI/Settings/ConfigPlist/ConfigPlistClass.h b/rEFIt_UEFI/Settings/ConfigPlist/ConfigPlistClass.h
index 0def8f7c9..883dc6e03 100644
--- a/rEFIt_UEFI/Settings/ConfigPlist/ConfigPlistClass.h
+++ b/rEFIt_UEFI/Settings/ConfigPlist/ConfigPlistClass.h
@@ -89,7 +89,7 @@ public:
   SmbiosPlistClass::SmbiosDictClass SMBIOS_monterey = SmbiosPlistClass::SmbiosDictClass();
   SmbiosPlistClass::SmbiosDictClass SMBIOS_ventura = SmbiosPlistClass::SmbiosDictClass();
   SmbiosPlistClass::SmbiosDictClass SMBIOS_sonoma = SmbiosPlistClass::SmbiosDictClass();
-  SmbiosPlistClass::SmbiosDictClass SMBIOS_fifteen = SmbiosPlistClass::SmbiosDictClass();
+  SmbiosPlistClass::SmbiosDictClass SMBIOS_sequoia = SmbiosPlistClass::SmbiosDictClass();
 //  SmbiosPlistClass::SmbiosDictClass SMBIOS_lion = SmbiosPlistClass::SmbiosDictClass();
 public:
   SystemParameters_Class SystemParameters = SystemParameters_Class();
@@ -120,7 +120,7 @@ public:
     {"SMBIOS_monterey", SMBIOS_monterey},
     {"SMBIOS_ventura", SMBIOS_ventura},
     {"SMBIOS_sonoma", SMBIOS_sonoma},
-    {"SMBIOS_fifteen", SMBIOS_fifteen},
+    {"SMBIOS_sequoia", SMBIOS_sequoia},
     {"SystemParameters", SystemParameters},
     {"RtVariables", RtVariables},
     {"Quirks", Quirks},
diff --git a/rEFIt_UEFI/Settings/ConfigPlist/SMBIOSPlist.h b/rEFIt_UEFI/Settings/ConfigPlist/SMBIOSPlist.h
index 0ccce2181..fa6122083 100644
--- a/rEFIt_UEFI/Settings/ConfigPlist/SMBIOSPlist.h
+++ b/rEFIt_UEFI/Settings/ConfigPlist/SMBIOSPlist.h
@@ -761,7 +761,7 @@ public:
   SmbiosDictClass SMBIOS_monterey = SmbiosDictClass();
   SmbiosDictClass SMBIOS_ventura = SmbiosDictClass();
   SmbiosDictClass SMBIOS_sonoma = SmbiosDictClass();
-  SmbiosDictClass SMBIOS_fifteen = SmbiosDictClass();
+  SmbiosDictClass SMBIOS_sequoia = SmbiosDictClass();
   
   XmlDictField m_fields[15] = {
     {"SMBIOS", SMBIOS},
@@ -778,7 +778,7 @@ public:
     {"SMBIOS_monterey", SMBIOS_monterey},
     {"SMBIOS_ventura", SMBIOS_ventura},
     {"SMBIOS_sonoma", SMBIOS_sonoma},
-    {"SMBIOS_fifteen", SMBIOS_fifteen},
+    {"SMBIOS_sequoia", SMBIOS_sequoia},
   };
 
 public:
diff --git a/rEFIt_UEFI/entry_scan/loader.cpp b/rEFIt_UEFI/entry_scan/loader.cpp
index 467be419b..3bf0173d4 100644
--- a/rEFIt_UEFI/entry_scan/loader.cpp
+++ b/rEFIt_UEFI/entry_scan/loader.cpp
@@ -587,7 +587,7 @@ MacOsVersion GetOSVersion(int LoaderType, const EFI_GUID& APFSTargetUUID, const
                 OSVersion = "13"_XS8;
               } else if ( Prop->getString()->stringValue().contains("Install%20macOS%20Sonoma") || Prop->getString()->stringValue().contains("Install%20macOS%2014")) {
                 OSVersion = "14"_XS8;
-              } else if ( Prop->getString()->stringValue().contains("Install%20macOS%20Fifteen") || Prop->getString()->stringValue().contains("Install%20macOS%2015")) {
+              } else if ( Prop->getString()->stringValue().contains("Install%20macOS%20Sequoia") || Prop->getString()->stringValue().contains("Install%20macOS%2015")) {
                 OSVersion = "15"_XS8;
               } else if ( Prop->getString()->stringValue().contains("Install%20macOS%2010.16")) {
                 OSVersion = "10.16"_XS8;
@@ -842,8 +842,8 @@ GetOSIconName (const MacOsVersion& OSVersion)
   if (OSVersion.isEmpty()) {
     OSIconName = L"mac"_XSW;
   } else if (OSVersion.elementAt(0) == 15 ){
-    // Fifteen
-    OSIconName = L"fifteen,mac"_XSW;
+    // Sequoia
+    OSIconName = L"sequoia,mac"_XSW;
   } else if (OSVersion.elementAt(0) == 14 ){
     // Sonoma
     OSIconName = L"sonoma,mac"_XSW;
diff --git a/rEFIt_UEFI/libeg/XIcon.cpp b/rEFIt_UEFI/libeg/XIcon.cpp
index a0831289b..83566f153 100644
--- a/rEFIt_UEFI/libeg/XIcon.cpp
+++ b/rEFIt_UEFI/libeg/XIcon.cpp
@@ -86,7 +86,7 @@ CONST LString8 IconsNames[] = {
    "os_monterey",  //54 == ICON_MONTEREY
    "os_ventura",  //55 == ICON_VENTURA
    "os_sonoma",  //56 == ICON_SONOMA
-   "os_fifteen",  //57 == ICON_FIFTEEN
+   "os_sequoia",  //57 == ICON_SEQUOIA
   ""
 };
 const INTN IconsNamesSize = sizeof(IconsNames) / sizeof(IconsNames[0]);
diff --git a/rEFIt_UEFI/libeg/XTheme.cpp b/rEFIt_UEFI/libeg/XTheme.cpp
index 45778d168..630dfbc17 100644
--- a/rEFIt_UEFI/libeg/XTheme.cpp
+++ b/rEFIt_UEFI/libeg/XTheme.cpp
@@ -138,11 +138,11 @@ EFI_STATUS Status       = EFI_NOT_FOUND;
           ThemeDict = ThemeX->LoadTheme(XStringW(ThemeNameArray[Rnd]));
         } else {
           ThemeDict = ThemeX->LoadTheme(gSettings.GUI.Theme);
-          if (ThemeDict == NULL) {
-            DBG("GlobalConfig: %ls not found, get embedded theme\n", gSettings.GUI.Theme.wc_str());
-          } else {
-            DBG("chosen theme %ls\n", gSettings.GUI.Theme.wc_str());
-          }
+//          if (ThemeDict == NULL) {
+//            DBG("GlobalConfig: %ls not found, get embedded theme\n", gSettings.GUI.Theme.wc_str());
+//          } else {
+//            DBG("chosen theme %ls\n", gSettings.GUI.Theme.wc_str());
+//          }
         }
       }
     }
diff --git a/rEFIt_UEFI/refit/lib.h b/rEFIt_UEFI/refit/lib.h
index 98e3c3015..c263bc81d 100644
--- a/rEFIt_UEFI/refit/lib.h
+++ b/rEFIt_UEFI/refit/lib.h
@@ -364,7 +364,7 @@ void DebugPause(void);
 #define ICON_MONTEREY                          (54)
 #define ICON_VENTURA                           (55)
 #define ICON_SONOMA                            (56)
-#define ICON_FIFTEEN                           (57)
+#define ICON_SEQUOIA                           (57)
 #define BUILTIN_ICON_BACKGROUND                (100)
 #define BUILTIN_ICON_SELECTION                 (101)
 #define BUILTIN_ICON_ANIME                     (102)
diff --git a/rEFIt_UEFI/refit/main.cpp b/rEFIt_UEFI/refit/main.cpp
index 27e78adba..02bd0028e 100644
--- a/rEFIt_UEFI/refit/main.cpp
+++ b/rEFIt_UEFI/refit/main.cpp
@@ -1242,7 +1242,7 @@ void LOADER_ENTRY::StartLoader()
       if ( FileExists(&self.getCloverDir(), bundleFullPath) ) {
         XString8 bundlePathUnderKextsDir = S8Printf("%ls\\%ls", KextEntry.KextDirNameUnderOEMPath.wc_str(), KextEntry.FileName.wc_str());
         OC_STRING_ASSIGN(mOpenCoreConfiguration.Kernel.Add.Values[kextIdx]->BundlePath, bundlePathUnderKextsDir.c_str());
-        DBG("OC BundlePath     = '%s'\n", OC_BLOB_GET(&mOpenCoreConfiguration.Kernel.Add.Values[kextIdx]->BundlePath));
+ //       DBG("OC BundlePath     = '%s'\n", OC_BLOB_GET(&mOpenCoreConfiguration.Kernel.Add.Values[kextIdx]->BundlePath));
       } else {
         DBG("Cannot find kext bundlePath at '%s'\n", bundleFullPath.c_str());
       }
@@ -1260,7 +1260,7 @@ void LOADER_ENTRY::StartLoader()
           } else {
             OC_STRING_ASSIGN(mOpenCoreConfiguration.Kernel.Add.Values[kextIdx]->PlistPath, "Contents\\Info.plist");
           }
-          DBG("OC PlistPath      = '%s'\n", OC_BLOB_GET(&mOpenCoreConfiguration.Kernel.Add.Values[kextIdx]->PlistPath));
+ //         DBG("OC PlistPath      = '%s'\n", OC_BLOB_GET(&mOpenCoreConfiguration.Kernel.Add.Values[kextIdx]->PlistPath));
         } else {
           DBG("Cannot find kext info.plist at '%ls'\n", KextEntry.FileName.wc_str());
         }
@@ -1268,7 +1268,7 @@ void LOADER_ENTRY::StartLoader()
         XString8 execpath = getKextExecPath(&self.getCloverDir(), KextEntry.KextDirNameUnderOEMPath, KextEntry.FileName, dict, NoContents);
         if (execpath.notEmpty()) {
           OC_STRING_ASSIGN(mOpenCoreConfiguration.Kernel.Add.Values[kextIdx]->ExecutablePath, execpath.c_str());
-          DBG("OC ExecutablePath = '%s'\n", execpath.c_str());
+ //         DBG("OC ExecutablePath = '%s'\n", execpath.c_str());
         }
         if ( dict ) dict->ReleaseTag();
       }