diff --git a/00_empty/main/00_empty.c b/00_empty/main/00_empty.c
index 7c7a73d..f95c285 100644
--- a/00_empty/main/00_empty.c
+++ b/00_empty/main/00_empty.c
@@ -15,5 +15,5 @@ void loop_task(void *pvParameter)
 void app_main()
 {
 	
-    xTaskCreate(&loop_task, "loop_task", 512, NULL, 5, NULL);
+    xTaskCreate(&loop_task, "loop_task", 1024, NULL, 5, NULL);
 }
diff --git a/01_wifi_scanner/main/main.c b/01_wifi_scanner/main/main.c
index 10395a6..4ff75aa 100644
--- a/01_wifi_scanner/main/main.c
+++ b/01_wifi_scanner/main/main.c
@@ -4,6 +4,7 @@
 #include "esp_event_loop.h"
 #include "esp_wifi.h"
 #include "esp_log.h"
+#include "nvs_flash.h"
 
 #define MAX_APs 20
 
@@ -32,6 +33,9 @@ void loop_task(void *pvParameter)
 
 void app_main()
 {
+	// initialize NVS
+	ESP_ERROR_CHECK(nvs_flash_init());
+	
 	// initialize the tcp stack
 	tcpip_adapter_init();
 
diff --git a/02_wifi_connection/main/main.c b/02_wifi_connection/main/main.c
index a458bb5..2a9900a 100644
--- a/02_wifi_connection/main/main.c
+++ b/02_wifi_connection/main/main.c
@@ -6,6 +6,7 @@
 #include "esp_wifi.h"
 #include "esp_event_loop.h"
 #include "esp_log.h"
+#include "nvs_flash.h"
 
 #define WIFI_SSID "MYSSID"
 #define WIFI_PASS "MYPASSWORD"
@@ -68,8 +69,8 @@ void app_main()
 	// disable the default wifi logging
 	esp_log_level_set("wifi", ESP_LOG_NONE);
 	
-	// disable stdout buffering
-	setvbuf(stdout, NULL, _IONBF, 0);
+	// initialize NVS
+	ESP_ERROR_CHECK(nvs_flash_init());
 	
 	// create the event group to handle wifi events
 	wifi_event_group = xEventGroupCreate();
diff --git a/12_accesspoint/main/main.c b/12_accesspoint/main/main.c
index 328618a..7c48ec2 100644
--- a/12_accesspoint/main/main.c
+++ b/12_accesspoint/main/main.c
@@ -7,6 +7,7 @@
 #include "esp_wifi.h"
 #include "esp_event_loop.h"
 #include "esp_log.h"
+#include "nvs_flash.h"
 
 
 // set AP CONFIG values
@@ -125,6 +126,9 @@ void app_main()
 	
 	// create the event group to handle wifi events
 	event_group = xEventGroupCreate();
+	
+	// initialize NVS
+	ESP_ERROR_CHECK(nvs_flash_init());
 		
 	// initialize the tcp stack
 	tcpip_adapter_init();
diff --git a/16_spiffs/components/spiffs/spiffs_vfs.c b/16_spiffs/components/spiffs/spiffs_vfs.c
index 53749a4..e6eb62f 100644
--- a/16_spiffs/components/spiffs/spiffs_vfs.c
+++ b/16_spiffs/components/spiffs/spiffs_vfs.c
@@ -833,7 +833,7 @@ void vfs_spiffs_register() {
 	}
 
 	esp_vfs_t vfs = {
-        .fd_offset = 0,
+        //.fd_offset = 0,
         .flags = ESP_VFS_FLAG_DEFAULT,
         .write = &vfs_spiffs_write,
         .open = &vfs_spiffs_open,