diff --git a/MicroPython_BUILD/components/micropython/esp32/modcurl.c b/MicroPython_BUILD/components/micropython/esp32/modcurl.c
index b56941d..63db367 100644
--- a/MicroPython_BUILD/components/micropython/esp32/modcurl.c
+++ b/MicroPython_BUILD/components/micropython/esp32/modcurl.c
@@ -415,9 +415,7 @@ STATIC mp_obj_t curl_sendmail(size_t n_args, const mp_obj_t *pos_args, mp_map_t
 	else quickmail_set_debug_log(mailobj, NULL);
 
 	const char* errmsg = NULL;
-   	MP_THREAD_GIL_EXIT();
 	errmsg = quickmail_protocol_send(mailobj, mail_server, mail_port, mail_protocol, user, pass);
-   	MP_THREAD_GIL_ENTER();
 
 	// Cleanup
 	quickmail_destroy(mailobj);
diff --git a/MicroPython_BUILD/components/micropython/esp32/mpversion.h b/MicroPython_BUILD/components/micropython/esp32/mpversion.h
index 1820aab..5760e36 100644
--- a/MicroPython_BUILD/components/micropython/esp32/mpversion.h
+++ b/MicroPython_BUILD/components/micropython/esp32/mpversion.h
@@ -1,8 +1,8 @@
 // MicroPython version info
-#define MICROPY_GIT_TAG "ESP32_LoBo_v3.1.3"
+#define MICROPY_GIT_TAG "ESP32_LoBo_v3.1.4"
 #define MICROPY_GIT_HASH "g2ddee729"
-#define MICROPY_BUILD_DATE "2017-01-13"
+#define MICROPY_BUILD_DATE "2017-01-14"
 #define MICROPY_VERSION_MAJOR (3)
 #define MICROPY_VERSION_MINOR (1)
-#define MICROPY_VERSION_MICRO (3)
-#define MICROPY_VERSION_STRING "3.1.3"
+#define MICROPY_VERSION_MICRO (4)
+#define MICROPY_VERSION_STRING "3.1.4"
diff --git a/MicroPython_BUILD/components/micropython/extmod/vfs_native.c b/MicroPython_BUILD/components/micropython/extmod/vfs_native.c
index 04d0b72..4c02754 100644
--- a/MicroPython_BUILD/components/micropython/extmod/vfs_native.c
+++ b/MicroPython_BUILD/components/micropython/extmod/vfs_native.c
@@ -881,6 +881,39 @@ STATIC mp_obj_t native_vfs_umount(mp_obj_t self_in) {
 }
 STATIC MP_DEFINE_CONST_FUN_OBJ_1(native_vfs_umount_obj, native_vfs_umount);
 
+//------------------
+int internalUmount()
+{
+	int res = 0;
+    if (native_vfs_mounted[VFS_NATIVE_TYPE_SPIFLASH]) {
+		#if MICROPY_USE_SPIFFS
+    	res = esp_vfs_spiffs_unregister("internalfs");
+    	if (res) res = 0;
+		#else
+    	if (s_wl_handle != WL_INVALID_HANDLE) res = wl_unmount(s_wl_handle);
+    	if (res) res = 0;
+		#endif
+    	native_vfs_mounted[VFS_NATIVE_TYPE_SPIFLASH] = false;
+    }
+    return res;
+}
+
+//-----------------
+int externalUmount()
+{
+	int res = 0;
+    if (native_vfs_mounted[VFS_NATIVE_TYPE_SDCARD]) {
+    	esp_vfs_fat_sdmmc_unmount();
+    	if (res) res = 0;
+		#if defined(CONFIG_SDCARD_MODE1)
+		sdspi_host_deinit();
+		#endif
+		native_vfs_mounted[VFS_NATIVE_TYPE_SDCARD] = false;
+    }
+
+    return res;
+}
+
 
 //-------------------------------------
 int mount_vfs(int type, char *chdir_to)
@@ -913,38 +946,6 @@ int mount_vfs(int type, char *chdir_to)
     return 0;
 }
 
-//------------------
-int internalUmount()
-{
-	int res = 0;
-    if (native_vfs_mounted[VFS_NATIVE_TYPE_SPIFLASH]) {
-		#if MICROPY_USE_SPIFFS
-    	res = esp_vfs_spiffs_unregister(NULL);
-    	if (res) res = 0;
-		#else
-    	if (s_wl_handle != WL_INVALID_HANDLE) res = wl_unmount(s_wl_handle);
-    	if (res) res = 0;
-		#endif
-    }
-    return res;
-}
-
-//-----------------
-int externalUmount()
-{
-	int res = 0;
-    if (native_vfs_mounted[VFS_NATIVE_TYPE_SDCARD]) {
-    	esp_vfs_fat_sdmmc_unmount();
-    	if (res) res = 0;
-		#if defined(CONFIG_SDCARD_MODE1)
-		sdspi_host_deinit();
-		#endif
-    }
-
-    return res;
-}
-
-
 //===============================================================
 STATIC const mp_rom_map_elem_t native_vfs_locals_dict_table[] = {
 	{ MP_ROM_QSTR(MP_QSTR_mkfs), MP_ROM_PTR(&native_vfs_mkfs_obj) },
diff --git a/MicroPython_BUILD/firmware/MicroPython_LoBo_Firmwares.zip b/MicroPython_BUILD/firmware/MicroPython_LoBo_Firmwares.zip
index 641e3ea..0209089 100644
Binary files a/MicroPython_BUILD/firmware/MicroPython_LoBo_Firmwares.zip and b/MicroPython_BUILD/firmware/MicroPython_LoBo_Firmwares.zip differ
diff --git a/MicroPython_BUILD/firmware/esp32/MicroPython.bin b/MicroPython_BUILD/firmware/esp32/MicroPython.bin
index 41220ed..1ed0048 100644
Binary files a/MicroPython_BUILD/firmware/esp32/MicroPython.bin and b/MicroPython_BUILD/firmware/esp32/MicroPython.bin differ
diff --git a/MicroPython_BUILD/firmware/esp32/bootloader/bootloader.bin b/MicroPython_BUILD/firmware/esp32/bootloader/bootloader.bin
index 324485c..95486fb 100644
Binary files a/MicroPython_BUILD/firmware/esp32/bootloader/bootloader.bin and b/MicroPython_BUILD/firmware/esp32/bootloader/bootloader.bin differ
diff --git a/MicroPython_BUILD/firmware/esp32_ota/MicroPython.bin b/MicroPython_BUILD/firmware/esp32_ota/MicroPython.bin
index 4091a9c..5ffd24b 100644
Binary files a/MicroPython_BUILD/firmware/esp32_ota/MicroPython.bin and b/MicroPython_BUILD/firmware/esp32_ota/MicroPython.bin differ
diff --git a/MicroPython_BUILD/firmware/esp32_ota/bootloader/bootloader.bin b/MicroPython_BUILD/firmware/esp32_ota/bootloader/bootloader.bin
index 6b7c4e8..876f366 100644
Binary files a/MicroPython_BUILD/firmware/esp32_ota/bootloader/bootloader.bin and b/MicroPython_BUILD/firmware/esp32_ota/bootloader/bootloader.bin differ
diff --git a/MicroPython_BUILD/firmware/esp32_ota/partitions_mpy.bin b/MicroPython_BUILD/firmware/esp32_ota/partitions_mpy.bin
index cea3bc1..f6e93f0 100644
Binary files a/MicroPython_BUILD/firmware/esp32_ota/partitions_mpy.bin and b/MicroPython_BUILD/firmware/esp32_ota/partitions_mpy.bin differ
diff --git a/MicroPython_BUILD/firmware/esp32_ota/partitions_mpy.csv b/MicroPython_BUILD/firmware/esp32_ota/partitions_mpy.csv
index 7292f6a..48e0d8d 100644
--- a/MicroPython_BUILD/firmware/esp32_ota/partitions_mpy.csv
+++ b/MicroPython_BUILD/firmware/esp32_ota/partitions_mpy.csv
@@ -6,6 +6,6 @@
 nvs,            data, nvs,     0x9000,  16K,
 otadata,        data, ota,     0xd000,  8K,
 phy_init,       data, phy,     0xf000,  4K,
-MicroPython_1,  app,  ota_0,   0x10000, 1280K,
-MicroPython_2,  app,  ota_1,   ,        1280K,
+MicroPython_1,  app,  ota_0,   0x10000, 1344K,
+MicroPython_2,  app,  ota_1,   ,        1344K,
 internalfs,     data, spiffs,  ,        1024K,
diff --git a/MicroPython_BUILD/firmware/esp32_psram/MicroPython.bin b/MicroPython_BUILD/firmware/esp32_psram/MicroPython.bin
index c6ba19e..3a43555 100644
Binary files a/MicroPython_BUILD/firmware/esp32_psram/MicroPython.bin and b/MicroPython_BUILD/firmware/esp32_psram/MicroPython.bin differ
diff --git a/MicroPython_BUILD/firmware/esp32_psram/bootloader/bootloader.bin b/MicroPython_BUILD/firmware/esp32_psram/bootloader/bootloader.bin
index 70d3913..8ba34a2 100644
Binary files a/MicroPython_BUILD/firmware/esp32_psram/bootloader/bootloader.bin and b/MicroPython_BUILD/firmware/esp32_psram/bootloader/bootloader.bin differ
diff --git a/MicroPython_BUILD/firmware/esp32_psram_all/MicroPython.bin b/MicroPython_BUILD/firmware/esp32_psram_all/MicroPython.bin
index 32f98d8..6c02f7e 100644
Binary files a/MicroPython_BUILD/firmware/esp32_psram_all/MicroPython.bin and b/MicroPython_BUILD/firmware/esp32_psram_all/MicroPython.bin differ
diff --git a/MicroPython_BUILD/firmware/esp32_psram_all/bootloader/bootloader.bin b/MicroPython_BUILD/firmware/esp32_psram_all/bootloader/bootloader.bin
index 25e6397..2cd39c2 100644
Binary files a/MicroPython_BUILD/firmware/esp32_psram_all/bootloader/bootloader.bin and b/MicroPython_BUILD/firmware/esp32_psram_all/bootloader/bootloader.bin differ
diff --git a/MicroPython_BUILD/firmware/esp32_psram_ota/MicroPython.bin b/MicroPython_BUILD/firmware/esp32_psram_ota/MicroPython.bin
index ce4805c..4388f94 100644
Binary files a/MicroPython_BUILD/firmware/esp32_psram_ota/MicroPython.bin and b/MicroPython_BUILD/firmware/esp32_psram_ota/MicroPython.bin differ
diff --git a/MicroPython_BUILD/firmware/esp32_psram_ota/bootloader/bootloader.bin b/MicroPython_BUILD/firmware/esp32_psram_ota/bootloader/bootloader.bin
index 559fa80..d9ba6bf 100644
Binary files a/MicroPython_BUILD/firmware/esp32_psram_ota/bootloader/bootloader.bin and b/MicroPython_BUILD/firmware/esp32_psram_ota/bootloader/bootloader.bin differ
diff --git a/MicroPython_BUILD/firmware/esp32_psram_ota/partitions_mpy.bin b/MicroPython_BUILD/firmware/esp32_psram_ota/partitions_mpy.bin
index b7381da..abf0568 100644
Binary files a/MicroPython_BUILD/firmware/esp32_psram_ota/partitions_mpy.bin and b/MicroPython_BUILD/firmware/esp32_psram_ota/partitions_mpy.bin differ
diff --git a/MicroPython_BUILD/firmware/esp32_psram_ota/partitions_mpy.csv b/MicroPython_BUILD/firmware/esp32_psram_ota/partitions_mpy.csv
index ecf2463..d678431 100644
--- a/MicroPython_BUILD/firmware/esp32_psram_ota/partitions_mpy.csv
+++ b/MicroPython_BUILD/firmware/esp32_psram_ota/partitions_mpy.csv
@@ -6,6 +6,6 @@
 nvs,            data, nvs,     0x9000,  16K,
 otadata,        data, ota,     0xd000,  8K,
 phy_init,       data, phy,     0xf000,  4K,
-MicroPython_1,  app,  ota_0,   0x10000, 1408K,
-MicroPython_2,  app,  ota_1,   ,        1408K,
+MicroPython_1,  app,  ota_0,   0x10000, 1472K,
+MicroPython_2,  app,  ota_1,   ,        1472K,
 internalfs,     data, spiffs,  ,        1024K,