diff --git a/src/core/hle/service/apt/apt.cpp b/src/core/hle/service/apt/apt.cpp
index 4861d9e5f..73c398941 100644
--- a/src/core/hle/service/apt/apt.cpp
+++ b/src/core/hle/service/apt/apt.cpp
@@ -16,6 +16,8 @@
 #include "core/hle/kernel/shared_memory.h"
 #include "core/hle/kernel/thread.h"
 
+#include "core/hle/service/ptm/ptm.h"
+
 namespace Service {
 namespace APT {
 
@@ -278,6 +280,22 @@ void GetAppCpuTimeLimit(Service::Interface* self) {
     LOG_WARNING(Service_APT, "(STUBBED) called value=%u", value);
 }
 
+void Unknown_0x01010000(Service::Interface* self){
+	u32* cmd_buff = Kernel::GetCommandBuffer();
+
+	cmd_buff[1] = RESULT_SUCCESS.raw;
+
+	// When a certain NS state field (internal NS state in .data/.bss.) is non-zero, the output value is zero
+	if (false){
+		cmd_buff[2] = 0;
+	}
+	else{
+		cmd_buff[2] = PTM::CheckNew3Ds();
+	}
+
+	LOG_WARNING(Service_APT, "(STUBBED) does not check internal NS state field");
+}
+
 void Init() {
     AddService(new APT_A_Interface);
     AddService(new APT_S_Interface);
diff --git a/src/core/hle/service/apt/apt.h b/src/core/hle/service/apt/apt.h
index e7fa39325..2684b9b00 100644
--- a/src/core/hle/service/apt/apt.h
+++ b/src/core/hle/service/apt/apt.h
@@ -249,6 +249,15 @@ void SetAppCpuTimeLimit(Service::Interface* self);
  */
 void GetAppCpuTimeLimit(Service::Interface* self);
 
+/**
+* From 3Ds Brew:
+*	This writes an output u8 to cmdreply indexword[2].
+*	This uses PTMSYSM:CheckNew3DS.
+*	When a certain NS state field (internal NS state in .data/.bss.) is non-zero, the output value is zero, otherwise the output is from PTMSYSM:CheckNew3DS. 
+*	Normally this NS state field is zero, however this state field is set to 1 when APT:PrepareToStartApplication is used with flags bit8 is set.
+*/
+void Unknown_0x01010000(Service::Interface* self);
+
 /// Initialize the APT service
 void Init();
 
diff --git a/src/core/hle/service/apt/apt_s.cpp b/src/core/hle/service/apt/apt_s.cpp
index 3fd348651..c576714d3 100644
--- a/src/core/hle/service/apt/apt_s.cpp
+++ b/src/core/hle/service/apt/apt_s.cpp
@@ -94,6 +94,7 @@ const Interface::FunctionInfo FunctionTable[] = {
     {0x004E0000, nullptr,               "HardwareResetAsync"},
     {0x004F0080, nullptr,               "SetApplicationCpuTimeLimit"},
     {0x00500040, nullptr,               "GetApplicationCpuTimeLimit"},
+	{0x01010000, Unknown_0x01010000,	"Unknown_0x01010000" },
 };
 
 APT_S_Interface::APT_S_Interface() {
diff --git a/src/core/hle/service/apt/apt_u.cpp b/src/core/hle/service/apt/apt_u.cpp
index 5ab23801e..4fe29f2bf 100644
--- a/src/core/hle/service/apt/apt_u.cpp
+++ b/src/core/hle/service/apt/apt_u.cpp
@@ -93,6 +93,7 @@ const Interface::FunctionInfo FunctionTable[] = {
     {0x004E0000, nullptr,                         "HardwareResetAsync"},
     {0x004F0080, SetAppCpuTimeLimit,              "SetAppCpuTimeLimit"},
     {0x00500040, GetAppCpuTimeLimit,              "GetAppCpuTimeLimit"},
+	{0x01010000, Unknown_0x01010000,			  "Unknown_0x01010000"},
 };
 
 APT_U_Interface::APT_U_Interface() {
diff --git a/src/core/hle/service/ptm/ptm.cpp b/src/core/hle/service/ptm/ptm.cpp
index 57a301bec..891605c37 100644
--- a/src/core/hle/service/ptm/ptm.cpp
+++ b/src/core/hle/service/ptm/ptm.cpp
@@ -38,6 +38,10 @@ ChargeLevels GetBatteryLevel() {
     return ChargeLevels::CompletelyFull; // Set to a completely full battery
 }
 
+u8 CheckNew3Ds(){
+	return static_cast<u8>(PhysicalVersion::Old3Ds);
+}
+
 void Init() {
     AddService(new PTM_Play_Interface);
     AddService(new PTM_Sysm_Interface);
diff --git a/src/core/hle/service/ptm/ptm.h b/src/core/hle/service/ptm/ptm.h
index 3c776aa8a..3bb8208b1 100644
--- a/src/core/hle/service/ptm/ptm.h
+++ b/src/core/hle/service/ptm/ptm.h
@@ -55,6 +55,12 @@ u32 GetShellState();
  */
 ChargeLevels GetBatteryLevel();
 
+/**
+* Checks the physical version of the 3Ds
+* @returns The physical version of the 3Ds
+*/
+u8 CheckNew3Ds(void);
+
 /// Initialize the PTM service
 void Init();
 
diff --git a/src/core/hle/service/ptm/ptm_sysm.cpp b/src/core/hle/service/ptm/ptm_sysm.cpp
index 2d841f69c..012823359 100644
--- a/src/core/hle/service/ptm/ptm_sysm.cpp
+++ b/src/core/hle/service/ptm/ptm_sysm.cpp
@@ -6,6 +6,7 @@
 #include "core/file_sys/archive_extsavedata.h"
 #include "core/hle/hle.h"
 #include "core/hle/service/ptm/ptm_sysm.h"
+#include "core/hle/service/ptm/ptm.h"
 
 namespace Service {
 namespace PTM {
@@ -22,6 +23,19 @@ void IsLegacyPowerOff(Service::Interface* self) {
     cmd_buff[2] = 0;
 }
 
+/**
+* Checks the physical version of the 3Ds
+*  Outputs:
+*      0 : Return header
+*      1 : 0 if old 3Ds, 1 if new 3DS
+*/
+void CheckNew3Ds(Service::Interface* self){
+	u32* cmd_buff = Kernel::GetCommandBuffer();
+
+	cmd_buff[1] = RESULT_SUCCESS.raw;
+	cmd_buff[2] = PTM::CheckNew3Ds();
+}
+
 const Interface::FunctionInfo FunctionTable[] = {
     {0x040100C0, nullptr, "SetRtcAlarmEx"},
     {0x04020042, nullptr, "ReplySleepQuery"},
@@ -32,7 +46,7 @@ const Interface::FunctionInfo FunctionTable[] = {
     {0x040700C0, nullptr, "ShutdownAsync"},
     {0x04080000, nullptr, "Awake"},
     {0x04090080, nullptr, "RebootAsync"},
-    {0x040A0000, nullptr, "CheckNew3DS"},
+    {0x040A0000, CheckNew3Ds, "CheckNew3DS"},
     {0x08010640, nullptr, "SetInfoLEDPattern"},
     {0x08020040, nullptr, "SetInfoLEDPatternHeader"},
     {0x08030000, nullptr, "GetInfoLEDStatus"},
diff --git a/src/core/hle/service/ptm/ptm_sysm.h b/src/core/hle/service/ptm/ptm_sysm.h
index e37f20546..2b557a885 100644
--- a/src/core/hle/service/ptm/ptm_sysm.h
+++ b/src/core/hle/service/ptm/ptm_sysm.h
@@ -9,6 +9,12 @@
 namespace Service {
 namespace PTM {
 
+/// Physical version of the 3Ds
+enum class PhysicalVersion : u8 {
+	Old3Ds = 0,
+	New3Ds = 1,
+};
+
 class PTM_Sysm_Interface : public Interface {
 public:
     PTM_Sysm_Interface();