diff --git a/src/core/hle/service/apt/apt.cpp b/src/core/hle/service/apt/apt.cpp
index 77da3ae7e..48ff76eee 100644
--- a/src/core/hle/service/apt/apt.cpp
+++ b/src/core/hle/service/apt/apt.cpp
@@ -550,6 +550,27 @@ void Module::Interface::CancelLibraryApplet(Kernel::HLERequestContext& ctx) {
     LOG_WARNING(Service_APT, "(STUBBED) called exiting=%d", exiting);
 }
 
+void Module::Interface::SendCaptureBufferInfo(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx, 0x40, 1, 2); // 0x00400042
+    u32 size = rp.Pop<u32>();
+    ASSERT(size == 0x20);
+    apt->screen_capture_buffer = rp.PopStaticBuffer();
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(1, 0);
+    rb.Push(RESULT_SUCCESS);
+}
+
+void Module::Interface::ReceiveCaptureBufferInfo(Kernel::HLERequestContext& ctx) {
+    IPC::RequestParser rp(ctx, 0x41, 1, 0); // 0x00410040
+    u32 size = rp.Pop<u32>();
+    ASSERT(size == 0x20);
+
+    IPC::RequestBuilder rb = rp.MakeBuilder(2, 2);
+    rb.Push(RESULT_SUCCESS);
+    rb.Push(static_cast<u32>(apt->screen_capture_buffer.size()));
+    rb.PushStaticBuffer(std::move(apt->screen_capture_buffer), 0);
+}
+
 void Module::Interface::SetScreenCapPostPermission(Kernel::HLERequestContext& ctx) {
     IPC::RequestParser rp(ctx, 0x55, 1, 0); // 0x00550040
 
diff --git a/src/core/hle/service/apt/apt.h b/src/core/hle/service/apt/apt.h
index c80658edf..7abbcd8bb 100644
--- a/src/core/hle/service/apt/apt.h
+++ b/src/core/hle/service/apt/apt.h
@@ -14,7 +14,7 @@
 namespace Kernel {
 class Mutex;
 class SharedMemory;
-}
+} // namespace Kernel
 
 namespace Service {
 namespace APT {
@@ -212,7 +212,7 @@ public:
          * Outputs:
          *     0 : Return Header
          *     1 : Result of function, 0 on success, otherwise error code
-        */
+         */
         void SendParameter(Kernel::HLERequestContext& ctx);
 
         /**
@@ -313,7 +313,7 @@ public:
          * Outputs:
          *     0 : Return Header
          *     1 : Result of function, 0 on success, otherwise error code
-        */
+         */
         void StartApplication(Kernel::HLERequestContext& ctx);
 
         /**
@@ -420,6 +420,33 @@ public:
          */
         void CancelLibraryApplet(Kernel::HLERequestContext& ctx);
 
+        /**
+         * APT::SendCaptureBufferInfo service function
+         *  Inputs:
+         *      0 : Command header [0x00400042]
+         *      1 : Size
+         *      2 : (Size << 14) | 2
+         *      3 : void*, CaptureBufferInfo
+         *  Outputs:
+         *      0 : Header code
+         *      1 : Result code
+         */
+        void SendCaptureBufferInfo(Kernel::HLERequestContext& ctx);
+
+        /**
+         * APT::ReceiveCaptureBufferInfo service function
+         *  Inputs:
+         *      0 : Command header [0x00410040]
+         *      1 : Size
+         *      64 : Size << 14 | 2
+         *      65 : void*, CaptureBufferInfo
+         *  Outputs:
+         *      0 : Header code
+         *      1 : Result code
+         *      2 : Actual Size
+         */
+        void ReceiveCaptureBufferInfo(Kernel::HLERequestContext& ctx);
+
         /**
          * APT::GetStartupArgument service function
          *  Inputs:
@@ -496,6 +523,8 @@ private:
     // APT::CheckNew3DSApp will check this unknown_ns_state_field to determine processing mode
     u8 unknown_ns_state_field = 0;
 
+    std::vector<u8> screen_capture_buffer;
+
     ScreencapPostPermission screen_capture_post_permission =
         ScreencapPostPermission::CleanThePermission; // TODO(JamePeng): verify the initial value
 
diff --git a/src/core/hle/service/apt/apt_a.cpp b/src/core/hle/service/apt/apt_a.cpp
index e9f0459c2..19b1de05c 100644
--- a/src/core/hle/service/apt/apt_a.cpp
+++ b/src/core/hle/service/apt/apt_a.cpp
@@ -73,8 +73,8 @@ APT_A::APT_A(std::shared_ptr<Module> apt)
         {0x003D0042, nullptr, "SendDspWakeUp"},
         {0x003E0080, nullptr, "ReplySleepQuery"},
         {0x003F0040, nullptr, "ReplySleepNotificationComplete"},
-        {0x00400042, nullptr, "SendCaptureBufferInfo"},
-        {0x00410040, nullptr, "ReceiveCaptureBufferInfo"},
+        {0x00400042, &APT_A::SendCaptureBufferInfo, "SendCaptureBufferInfo"},
+        {0x00410040, &APT_A::ReceiveCaptureBufferInfo, "ReceiveCaptureBufferInfo"},
         {0x00420080, nullptr, "SleepSystem"},
         {0x00430040, &APT_A::NotifyToWait, "NotifyToWait"},
         {0x00440000, &APT_A::GetSharedFont, "GetSharedFont"},
diff --git a/src/core/hle/service/apt/apt_s.cpp b/src/core/hle/service/apt/apt_s.cpp
index d8c1c2230..67ed7b9d9 100644
--- a/src/core/hle/service/apt/apt_s.cpp
+++ b/src/core/hle/service/apt/apt_s.cpp
@@ -73,8 +73,8 @@ APT_S::APT_S(std::shared_ptr<Module> apt)
         {0x003D0042, nullptr, "SendDspWakeUp"},
         {0x003E0080, nullptr, "ReplySleepQuery"},
         {0x003F0040, nullptr, "ReplySleepNotificationComplete"},
-        {0x00400042, nullptr, "SendCaptureBufferInfo"},
-        {0x00410040, nullptr, "ReceiveCaptureBufferInfo"},
+        {0x00400042, &APT_S::SendCaptureBufferInfo, "SendCaptureBufferInfo"},
+        {0x00410040, &APT_S::ReceiveCaptureBufferInfo, "ReceiveCaptureBufferInfo"},
         {0x00420080, nullptr, "SleepSystem"},
         {0x00430040, &APT_S::NotifyToWait, "NotifyToWait"},
         {0x00440000, &APT_S::GetSharedFont, "GetSharedFont"},
diff --git a/src/core/hle/service/apt/apt_u.cpp b/src/core/hle/service/apt/apt_u.cpp
index 8475827e2..193fdd78a 100644
--- a/src/core/hle/service/apt/apt_u.cpp
+++ b/src/core/hle/service/apt/apt_u.cpp
@@ -73,8 +73,8 @@ APT_U::APT_U(std::shared_ptr<Module> apt)
         {0x003D0042, nullptr, "SendDspWakeUp"},
         {0x003E0080, nullptr, "ReplySleepQuery"},
         {0x003F0040, nullptr, "ReplySleepNotificationComplete"},
-        {0x00400042, nullptr, "SendCaptureBufferInfo"},
-        {0x00410040, nullptr, "ReceiveCaptureBufferInfo"},
+        {0x00400042, &APT_U::SendCaptureBufferInfo, "SendCaptureBufferInfo"},
+        {0x00410040, &APT_U::ReceiveCaptureBufferInfo, "ReceiveCaptureBufferInfo"},
         {0x00420080, nullptr, "SleepSystem"},
         {0x00430040, &APT_U::NotifyToWait, "NotifyToWait"},
         {0x00440000, &APT_U::GetSharedFont, "GetSharedFont"},