diff --git a/include/kernel/kernel.hpp b/include/kernel/kernel.hpp
index 94801729..7e65b718 100644
--- a/include/kernel/kernel.hpp
+++ b/include/kernel/kernel.hpp
@@ -103,11 +103,13 @@ class Kernel {
 	void getResourceLimitCurrentValues();
 	void getSystemTick();
 	void getThreadID();
+	void releaseMutex();
 	void sendSyncRequest();
 	void svcCloseHandle();
 	void connectToPort();
 	void outputDebugString();
 	void waitSynchronization1();
+	void waitSynchronizationN();
 
 	// File operations
 	void handleFileOperation(u32 messagePointer, Handle file);
diff --git a/include/services/apt.hpp b/include/services/apt.hpp
index 875bdd7b..7899f573 100644
--- a/include/services/apt.hpp
+++ b/include/services/apt.hpp
@@ -12,6 +12,8 @@ class APTService {
 	// Service commands
 	void getLockHandle(u32 messagePointer);
 	void checkNew3DS(u32 messagePointer);
+	void enable(u32 messagePointer);
+	void notifyToWait(u32 messagePointer);
 
 public:
 	APTService(Memory& mem) : mem(mem) {}
diff --git a/src/core/filesystem/archive_ncch.cpp b/src/core/filesystem/archive_ncch.cpp
index b50715f8..aa731dac 100644
--- a/src/core/filesystem/archive_ncch.cpp
+++ b/src/core/filesystem/archive_ncch.cpp
@@ -55,7 +55,6 @@ std::optional<u32> SelfNCCHArchive::readFile(FileSession* file, u64 offset, u32
 
 	for (u64 i = 0; i < bytesRead; i++) {
 		mem.write8(dataPointer + i, data[i]);
-		printf("%x\n", data[i]);
 	}
 
 	return bytesRead;
diff --git a/src/core/kernel/events.cpp b/src/core/kernel/events.cpp
index e2f39564..4c2bb8ba 100644
--- a/src/core/kernel/events.cpp
+++ b/src/core/kernel/events.cpp
@@ -58,4 +58,18 @@ void Kernel::waitSynchronization1() {
 
 	logSVC("WaitSynchronization1(handle = %X, ns = %lld) (STUBBED)\n", handle, ns);
 	regs[0] = SVCResult::Success;
+}
+
+// Result WaitSynchronizationN(s32* out, Handle* handles, s32 handlecount, bool waitAll, s64 timeout_nanoseconds)
+void Kernel::waitSynchronizationN() {
+	// TODO: Are these arguments even correct?
+	u32 ns1 = regs[0];
+	u32 handles = regs[1];
+	u32 handleCount = regs[2];
+	bool waitAll = regs[3] != 0;
+	u32 ns2 = regs[4];
+	u32 out = regs[5];
+
+	logSVC("WaitSynchronizationN (STUBBED)\n");
+	regs[0] = SVCResult::Success;
 }
\ No newline at end of file
diff --git a/src/core/kernel/kernel.cpp b/src/core/kernel/kernel.cpp
index a96deff4..3a28bf25 100644
--- a/src/core/kernel/kernel.cpp
+++ b/src/core/kernel/kernel.cpp
@@ -22,6 +22,7 @@ void Kernel::serviceSVC(u32 svc) {
 		case 0x01: controlMemory(); break;
 		case 0x02: queryMemory(); break;
 		case 0x08: createThread(); break;
+		case 0x14: releaseMutex(); break;
 		case 0x17: createEvent(); break;
 		case 0x19: clearEvent(); break;
 		case 0x1F: mapMemoryBlock(); break;
@@ -29,6 +30,7 @@ void Kernel::serviceSVC(u32 svc) {
 		case 0x22: arbitrateAddress(); break;
 		case 0x23: svcCloseHandle(); break;
 		case 0x24: waitSynchronization1(); break;
+		case 0x25: waitSynchronizationN(); break;
 		case 0x27: duplicateHandle(); break;
 		case 0x28: getSystemTick(); break;
 		case 0x2B: getProcessInfo(); break;
diff --git a/src/core/kernel/threads.cpp b/src/core/kernel/threads.cpp
index ac03905d..f2621022 100644
--- a/src/core/kernel/threads.cpp
+++ b/src/core/kernel/threads.cpp
@@ -115,4 +115,11 @@ void Kernel::getThreadID() {
 
 	regs[0] = SVCResult::Success;
 	regs[1] = thread->getData<Thread>()->index;
+}
+
+void Kernel::releaseMutex() {
+	const Handle handle = regs[0];
+
+	logSVC("ReleaseMutex (handle = %x) (STUBBED)\n", handle);
+	regs[0] = SVCResult::Success;
 }
\ No newline at end of file
diff --git a/src/core/services/apt.cpp b/src/core/services/apt.cpp
index 8906abef..12acb0c6 100644
--- a/src/core/services/apt.cpp
+++ b/src/core/services/apt.cpp
@@ -3,7 +3,9 @@
 namespace APTCommands {
 	enum : u32 {
 		GetLockHandle = 0x00010040,
-		CheckNew3DS = 0x01020000
+		Enable = 0x00030040,
+		CheckNew3DS = 0x01020000,
+		NotifyToWait = 0x00430040
 	};
 }
 
@@ -27,18 +29,32 @@ void APTService::handleSyncRequest(u32 messagePointer) {
 	const u32 command = mem.read32(messagePointer);
 	switch (command) {
 		case APTCommands::CheckNew3DS: checkNew3DS(messagePointer); break;
+		case APTCommands::Enable: enable(messagePointer); break;
 		case APTCommands::GetLockHandle: getLockHandle(messagePointer); break;
+		case APTCommands::NotifyToWait: notifyToWait(messagePointer); break;
 		default: Helpers::panic("APT service requested. Command: %08X\n", command);
 	}
 }
 
 void APTService::checkNew3DS(u32 messagePointer) {
+	log("APT::CheckNew3DS\n");
 	mem.write32(messagePointer + 4, Result::Success);
 	mem.write8(messagePointer + 8, Model::Old3DS); // u8, Status (0 = Old 3DS, 1 = New 3DS)
 }
 
+void APTService::enable(u32 messagePointer) {
+	log("APT::Enable\n");
+	mem.write32(messagePointer + 4, Result::Success);
+}
+
 void APTService::getLockHandle(u32 messagePointer) {
 	log("APT::GetLockHandle (Failure)\n");
 	mem.write32(messagePointer + 4, Result::Failure); // Result code
 	mem.write32(messagePointer + 16, 0); // Translation descriptor
+}
+
+// This apparently does nothing on the original kernel either?
+void APTService::notifyToWait(u32 messagePointer) {
+	log("APT::NotifyToWat\n");
+	mem.write32(messagePointer + 4, Result::Success);
 }
\ No newline at end of file