diff --git a/libctru/include/3ds/services/am.h b/libctru/include/3ds/services/am.h
index 31f4b06..9f0ef8b 100644
--- a/libctru/include/3ds/services/am.h
+++ b/libctru/include/3ds/services/am.h
@@ -97,6 +97,9 @@ Result AM_DeleteAppTitle(u8 mediatype, u64 titleID);
 /// Installs the current NATIVE_FIRM title to NAND (firm0:/ & firm1:/)
 Result AM_InstallNativeFirm(void);
 
+/// Similar to InstallNativeFirm, but doesn't use AMPXI_GetTitleList (NATIVE_FIRM: 0004013800000002 or 0004013820000002 (N3DS))
+Result AM_InstallFirm(u64 titleID);
+
 /**
  * @brief Gets the product code of a title.
  * @param mediatype Mediatype of the title.
diff --git a/libctru/source/services/am.c b/libctru/source/services/am.c
index 509ca3e..1de3605 100644
--- a/libctru/source/services/am.c
+++ b/libctru/source/services/am.c
@@ -199,6 +199,19 @@ Result AM_InstallNativeFirm(void)
 	return (Result)cmdbuf[1];
 }
 
+Result AM_InstallFirm(u64 titleID){
+	Result ret = 0;
+	u32 *cmdbuf = getThreadCommandBuffer();
+
+	cmdbuf[0] = IPC_MakeHeader(0x401,2,0); // 0x04010080
+	cmdbuf[1] = titleID & 0xffffffff;
+	cmdbuf[2] = (u32)(titleID >> 32);
+
+	if(R_FAILED(ret = svcSendSyncRequest(amHandle))) return ret;
+
+	return (Result)cmdbuf[1];
+}
+
 Result AM_GetTitleProductCode(u8 mediatype, u64 titleID, char* productCode)
 {
 	Result ret = 0;