diff --git a/Makefile b/Makefile
index eab63ab..f6407b1 100644
--- a/Makefile
+++ b/Makefile
@@ -10,7 +10,7 @@ OBJCOPY = $(DEVKITARM)/bin/arm-none-eabi-objcopy
 
 name := ReiNX
 ver_major  := 2
-ver_minor  := 3
+ver_minor  := 4
 
 dir_source := src
 dir_data := data
diff --git a/NX_Sysmodules b/NX_Sysmodules
index ad6dbcb..d435873 160000
--- a/NX_Sysmodules
+++ b/NX_Sysmodules
@@ -1 +1 @@
-Subproject commit ad6dbcb0dd113062a6ba2d34ceaf275faf2c8acb
+Subproject commit d435873fddd4a1983fd5332e38980266518f6846
diff --git a/data/es_patch.rxp b/data/es_patch.rxp
index 81f3b51..0483eff 100644
Binary files a/data/es_patch.rxp and b/data/es_patch.rxp differ
diff --git a/src/bootloader.h b/src/bootloader.h
index e70ed0b..1fd8755 100644
--- a/src/bootloader.h
+++ b/src/bootloader.h
@@ -31,6 +31,7 @@ static const pk11_offs _pk11_offs[] = {
     { "20181218175730", KB_FIRMWARE_VERSION_700, HOS_FIRMWARE_VERSION_700, 0x0F00, 0x6FE0, { 1, 2, 0 }, 0x40030000, 0x4003E000 }, //7.0.0
     { "20190208150037", KB_FIRMWARE_VERSION_701, HOS_FIRMWARE_VERSION_700, 0x0F00, 0x6FE0, { 1, 2, 0 }, 0x40030000, 0x4003E000 }, //7.0.1
     { "20190314172056", KB_FIRMWARE_VERSION_800, HOS_FIRMWARE_VERSION_800, 0x0E00, 0x6FE0, { 1, 2, 0 }, 0x40030000, 0x4003E000 }, //8.0.0
+    { "20190531152432", KB_FIRWAMRE_VERSION_810, HOS_FIRMWARE_VERSION_810, 0x0E00, 0x6FE0, { 1, 2, 0 }, 0x4002B000, 0x4003E000 }, //8.1.0
     { NULL } // End.
 };
 
diff --git a/src/firmware.c b/src/firmware.c
index 4455481..0ab3322 100644
--- a/src/firmware.c
+++ b/src/firmware.c
@@ -91,7 +91,7 @@ u8 loadFirm() {
     }
     else {
         if(!has_keygen_ran())
-            reboot_to_sept(pkg1ldr + pk11Offs->tsec_off);
+            reboot_to_sept(pkg1ldr + pk11Offs->tsec_off, pk11Offs->hos);
         else
             se_aes_unwrap_key(8, 12, pk21_keyseed);
     }
diff --git a/src/hwinit/se.c b/src/hwinit/se.c
index 18e9d9a..1f07003 100644
--- a/src/hwinit/se.c
+++ b/src/hwinit/se.c
@@ -163,6 +163,7 @@ int se_aes_unwrap_key(u32 ks_dst, u32 ks_src, const void *input)
 {
 	SE(SE_CONFIG_REG_OFFSET) = SE_CONFIG_DEC_ALG(ALG_AES_DEC) | SE_CONFIG_DST(DST_KEYTAB);
 	SE(SE_CRYPTO_REG_OFFSET) = SE_CRYPTO_KEY_INDEX(ks_src) | SE_CRYPTO_CORE_SEL(CORE_DECRYPT);
+	SE(0x318) = 0;
 	SE(SE_CRYPTO_KEYTABLE_DST_REG_OFFSET) = SE_CRYPTO_KEYTABLE_DST_KEY_INDEX(ks_dst);
 	return _se_execute(OP_START, NULL, 0, input, 0x10);
 }
diff --git a/src/hwinit/types.h b/src/hwinit/types.h
index f5a432e..05bee2b 100644
--- a/src/hwinit/types.h
+++ b/src/hwinit/types.h
@@ -59,6 +59,7 @@ enum KB_FIRMWARE_VERSION {
     KB_FIRMWARE_VERSION_700 = 7,
     KB_FIRMWARE_VERSION_701 = 7,
     KB_FIRMWARE_VERSION_800 = 7,
+    KB_FIRWAMRE_VERSION_810 = 8,
 };
 
 enum HOS_FIRMWARE_VERSION {
@@ -70,7 +71,8 @@ enum HOS_FIRMWARE_VERSION {
     HOS_FIRMWARE_VERSION_600 = 6,
     HOS_FIRMWARE_VERSION_620 = 7,
     HOS_FIRMWARE_VERSION_700 = 8,
-    HOS_FIRMWARE_VERSION_800 = 9, 
+    HOS_FIRMWARE_VERSION_800 = 9,
+    HOS_FIRMWARE_VERSION_810 = 10, 
 };
 
 #endif
diff --git a/src/kippatches/fs.inc b/src/kippatches/fs.inc
index 66d415e..4a83890 100644
--- a/src/kippatches/fs.inc
+++ b/src/kippatches/fs.inc
@@ -240,6 +240,18 @@ static kipdiff_t fs_diffs_800_exfat_nogc[3] = {
   { 0, 0, NULL, NULL }
 };
 
+static kipdiff_t fs_diffs_810_nosigchk[3] = {
+  { 0x7630C, 4, "\x51\x44\x00\x94", "\xE0\x03\x1F\x2A" },
+  { 0xF49A4, 4, "\xC0\x03\x00\x36", "\x1F\x20\x03\xD5" },
+  { 0, 0, NULL, NULL },
+};
+
+static kipdiff_t fs_diffs_810_exfat_nosigchk[3] = {
+  { 0x818BC, 4, "\x51\x44\x00\x94", "\xE0\x03\x1F\x2A" },
+  { 0xFFF54, 4, "\xC0\x03\x00\x36", "\x1F\x20\x03\xD5" },
+  { 0, 0, NULL, NULL },
+};
+
 /* patches */
 
 static kippatch_t fs_kip_patches_100[] = {
@@ -351,4 +363,14 @@ static kippatch_t fs_kip_patches_800_exfat[] = {
   { "nosigchk", fs_diffs_800_exfat_nosigchk },
   { "nogc", fs_diffs_800_exfat_nogc },
   { NULL, NULL }
+};
+
+static kippatch_t fs_kip_patches_810[] = {
+  { "nosigchk", fs_diffs_810_nosigchk },
+  { NULL, NULL }
+};
+
+static kippatch_t fs_kip_patches_810_exfat[] = {
+  { "nosigchk", fs_diffs_810_exfat_nosigchk },
+  { NULL, NULL }
 };
\ No newline at end of file
diff --git a/src/package.c b/src/package.c
index bd2f4a6..baa39a2 100644
--- a/src/package.c
+++ b/src/package.c
@@ -327,6 +327,8 @@ kippatchset_t kip_patches[] = {
     { "FS", "\x2c\xce\x65\x9c\xec\x53\x6a\x8e\x4d\x91\xf3\xbe\x4b\x74\xbe\xd3", fs_kip_patches_700_exfat },
     { "FS", "\xb2\xf5\x17\x6b\x35\x48\x36\x4d\x07\x9a\x29\xb1\x41\xa2\x3b\x06", fs_kip_patches_800 },
     { "FS", "\xdb\xd9\x41\xc0\xc5\x3c\x52\xcc\xf7\x20\x2c\x84\xd8\xe0\xf7\x80", fs_kip_patches_800_exfat },
+    { "FS", "\x6b\x09\xb6\x7b\x29\xc0\x20\x24\x6d\xc3\x4f\x5a\x04\xf5\xd3\x09", fs_kip_patches_810 },
+    { "FS", "\xb4\xca\xe1\xf2\x49\x65\xd9\x2e\xd2\x4e\xbe\x9e\x97\xf6\x09\xc3", fs_kip_patches_810_exfat },
     { NULL, NULL, NULL },
 };
 
diff --git a/src/patches.c b/src/patches.c
index 3c10350..24d6fc6 100644
--- a/src/patches.c
+++ b/src/patches.c
@@ -17,7 +17,6 @@
 #include "patches.h"
 
 void patchFS(pkg2_kip1_info_t* ki) {
-
     print("Patching FS\n");
 
     u8 kipHash[0x20];
@@ -216,6 +215,7 @@ void patchSecmon(u32 secmonBase, u32 fw){
     }
 }
 
+
 void patchKernel(pkg2_hdr_t *pkg2){
     //Patch Kernel
     if(!hasCustomKern()) {
diff --git a/src/sept.c b/src/sept.c
index 362c722..e971504 100644
--- a/src/sept.c
+++ b/src/sept.c
@@ -16,6 +16,7 @@
  */
 
 #include "sept.h"
+#include "hwinit/types.h"
 
 static u8 warmboot_reboot[] = {
     0x14, 0x00, 0x9F, 0xE5, // LDR R0, =0x7000E450
@@ -35,6 +36,7 @@ int has_keygen_ran() {
     if(keys_generated == 1)
         return keys_generated;
     int has_ran = PMC(APBDEV_PMC_SCRATCH49) == 67;
+    PMC(APBDEV_PMC_SCRATCH49) = 0;
     keys_generated = has_ran;
     return has_ran;
 }
@@ -60,12 +62,12 @@ void reloc_patcher(u32 payload_dst, u32 payload_src, u32 payload_size)
     }
 }
 
-int reboot_to_sept(const u8 *tsec_fw)
+int reboot_to_sept(const u8 *tsec_fw, u32 hosver)
 {
     // Copy warmboot reboot code and TSEC fw.
     memcpy((u8 *)(SEPT_PK1T_ADDR - WB_RST_SIZE), (u8 *)warmboot_reboot, sizeof(warmboot_reboot));
-    memcpy((void *)SEPT_PK1T_ADDR, tsec_fw, 0x3000);
-    *(vu32 *)SEPT_TCSZ_ADDR = 0x3000;
+    memcpy((void *)SEPT_PK1T_ADDR, tsec_fw, hosver == HOS_FIRMWARE_VERSION_800 ? 0x3000 : 0x3300);
+    *(vu32 *)SEPT_TCSZ_ADDR = hosver == HOS_FIRMWARE_VERSION_800 ? 0x3000 : 0x3300;
 
     // Copy sept-primary.
     fopen("/sept/sept-primary.bin", "rb");
@@ -73,7 +75,16 @@ int reboot_to_sept(const u8 *tsec_fw)
     fclose();
 
     // Copy sept-secondary.
-    fopen("/sept/sept-secondary.enc", "rb");
+    char *sec_path;
+    switch(hosver) {
+        case HOS_FIRMWARE_VERSION_800:
+            sec_path = "/sept/sept-secondary_00.enc";
+            break;
+        case HOS_FIRMWARE_VERSION_810:
+            sec_path = "/sept/sept-secondary_01.enc";
+            break;
+    }
+    fopen(sec_path, "rb");
     fread((u8 *)SEPT_STG2_ADDR, fsize(), 1);
     fclose();
 
diff --git a/src/sept.h b/src/sept.h
index 5e755ea..fc1c24c 100644
--- a/src/sept.h
+++ b/src/sept.h
@@ -40,4 +40,4 @@
 
 int has_keygen_ran();
 void reloc_patcher(u32 payload_dst, u32 payload_src, u32 payload_size);
-int reboot_to_sept(const u8 *tsec_fw);
\ No newline at end of file
+int reboot_to_sept(const u8 *tsec_fw, u32 hosver);
\ No newline at end of file