diff --git a/examples/AllFunctions/AllFunctions.ino b/examples/AllFunctions/AllFunctions.ino
index 3f80573..5ba9e46 100644
--- a/examples/AllFunctions/AllFunctions.ino
+++ b/examples/AllFunctions/AllFunctions.ino
@@ -141,7 +141,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 #endif
 
 #if TINY_GSM_TEST_GPRS && defined TINY_GSM_MODEM_XBEE
diff --git a/examples/FileDownload/FileDownload.ino b/examples/FileDownload/FileDownload.ino
index c0a93d8..fe365ec 100644
--- a/examples/FileDownload/FileDownload.ino
+++ b/examples/FileDownload/FileDownload.ino
@@ -140,7 +140,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 #endif
 
 #if TINY_GSM_USE_GPRS && defined TINY_GSM_MODEM_XBEE
@@ -154,7 +154,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 
   if (modem.isNetworkConnected()) {
     SerialMon.println("Network connected");
@@ -168,7 +168,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 #endif
 
   SerialMon.print(F("Connecting to "));
@@ -178,7 +178,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 
   // Make a HTTP GET request:
   client.print(String("GET ") + resource + " HTTP/1.0\r\n");
diff --git a/examples/HttpClient/HttpClient.ino b/examples/HttpClient/HttpClient.ino
index bf9924d..e9f9522 100644
--- a/examples/HttpClient/HttpClient.ino
+++ b/examples/HttpClient/HttpClient.ino
@@ -142,7 +142,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 #endif
 
 #if TINY_GSM_USE_GPRS && defined TINY_GSM_MODEM_XBEE
@@ -156,7 +156,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 
   if (modem.isNetworkConnected()) {
     SerialMon.println("Network connected");
@@ -170,7 +170,7 @@ void loop() {
       delay(10000);
       return;
     }
-    SerialMon.println(" OK");
+    SerialMon.println(" success");
 #endif
 
   SerialMon.print(F("Performing HTTP GET request... "));
diff --git a/examples/HttpsClient/HttpsClient.ino b/examples/HttpsClient/HttpsClient.ino
index e43711c..0b58143 100644
--- a/examples/HttpsClient/HttpsClient.ino
+++ b/examples/HttpsClient/HttpsClient.ino
@@ -142,7 +142,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 #endif
 
 #if TINY_GSM_USE_GPRS && defined TINY_GSM_MODEM_XBEE
@@ -156,7 +156,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 
   if (modem.isNetworkConnected()) {
     SerialMon.println("Network connected");
@@ -170,7 +170,7 @@ void loop() {
       delay(10000);
       return;
     }
-    SerialMon.println(" OK");
+    SerialMon.println(" success");
 #endif
 
   SerialMon.print(F("Performing HTTPS GET request... "));
diff --git a/examples/MqttClient/MqttClient.ino b/examples/MqttClient/MqttClient.ino
index 91873a7..075b6fc 100644
--- a/examples/MqttClient/MqttClient.ino
+++ b/examples/MqttClient/MqttClient.ino
@@ -167,7 +167,7 @@ void setup() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 
   if (modem.isNetworkConnected()) {
     SerialMon.println("Network connected");
@@ -181,7 +181,7 @@ void setup() {
       delay(10000);
       return;
   }
-  SerialMon.println(" OK");
+    SerialMon.println(" success");
 #endif
 
   // MQTT Broker setup
@@ -203,7 +203,7 @@ boolean mqttConnect() {
     SerialMon.println(" fail");
     return false;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
   mqtt.publish(topicInit, "GsmClientTest started");
   mqtt.subscribe(topicLed);
   return mqtt.connected();
diff --git a/examples/WebClient/WebClient.ino b/examples/WebClient/WebClient.ino
index ee278b8..813d1f0 100644
--- a/examples/WebClient/WebClient.ino
+++ b/examples/WebClient/WebClient.ino
@@ -60,17 +60,6 @@
 // Uncomment this if you want to use SSL
 //#define USE_SSL
 
-// Set serial for debug console (to the Serial Monitor, default speed 115200)
-#define SerialMon Serial
-
-// Set serial for AT commands (to the module)
-// Use Hardware Serial on Mega, Leonardo, Micro
-#define SerialAT Serial1
-
-// or Software Serial on Uno, Nano
-//#include <SoftwareSerial.h>
-//SoftwareSerial SerialAT(2, 3); // RX, TX
-
 #define TINY_GSM_USE_GPRS true
 #define TINY_GSM_USE_WIFI false
 
@@ -152,7 +141,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 #endif
 
 #if TINY_GSM_USE_GPRS && defined TINY_GSM_MODEM_XBEE
@@ -166,7 +155,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 
   if (modem.isNetworkConnected()) {
     SerialMon.println("Network connected");
@@ -180,7 +169,7 @@ void loop() {
       delay(10000);
       return;
     }
-    SerialMon.println(" OK");
+    SerialMon.println(" success");
 #endif
 
   SerialMon.print("Connecting to ");
@@ -190,7 +179,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 
   // Make a HTTP GET request:
   SerialMon.println("Performing HTTP GET request...");
diff --git a/examples/more/Hologram_Dash/Hologram_Dash.ino b/examples/more/Hologram_Dash/Hologram_Dash.ino
index 2f195da..331fbd1 100644
--- a/examples/more/Hologram_Dash/Hologram_Dash.ino
+++ b/examples/more/Hologram_Dash/Hologram_Dash.ino
@@ -83,7 +83,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 
   SerialMon.print(F("Connecting to "));
   SerialMon.print(apn);
@@ -92,7 +92,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 
   SerialMon.print(F("Connecting to "));
   SerialMon.print(server);
@@ -101,7 +101,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 
   // Make a HTTP GET request:
   client.print(String("GET ") + resource + " HTTP/1.0\r\n");
@@ -132,4 +132,3 @@ void loop() {
     delay(1000);
   }
 }
-
diff --git a/examples/more/Industruino/Industruino.ino b/examples/more/Industruino/Industruino.ino
index 3757f0c..b51acc6 100644
--- a/examples/more/Industruino/Industruino.ino
+++ b/examples/more/Industruino/Industruino.ino
@@ -96,7 +96,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 
   SerialMon.print(F("Connecting to "));
   SerialMon.print(apn);
@@ -105,7 +105,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 
   SerialMon.print(F("Performing HTTP GET request... "));
   int err = http.get(resource);
@@ -157,4 +157,3 @@ void loop() {
     delay(1000);
   }
 }
-
diff --git a/extras/AT Command Manuals/u-blox AT Commands Examples AppNote R13 (UBX-13001820).pdf b/extras/AT Command Manuals/u-blox AT Commands Examples AppNote R13 (UBX-13001820).pdf
new file mode 100644
index 0000000..929ab0e
Binary files /dev/null and b/extras/AT Command Manuals/u-blox AT Commands Examples AppNote R13 (UBX-13001820).pdf differ
diff --git a/extras/AT Command Manuals/u-blox Cellular AT Commands R60 (UBX-13002752).pdf b/extras/AT Command Manuals/u-blox Cellular AT Commands R62 (UBX-13002752).pdf
similarity index 61%
rename from extras/AT Command Manuals/u-blox Cellular AT Commands R60 (UBX-13002752).pdf
rename to extras/AT Command Manuals/u-blox Cellular AT Commands R62 (UBX-13002752).pdf
index 883720b..bb83e63 100644
Binary files a/extras/AT Command Manuals/u-blox Cellular AT Commands R60 (UBX-13002752).pdf and b/extras/AT Command Manuals/u-blox Cellular AT Commands R62 (UBX-13002752).pdf differ
diff --git a/tools/Diagnostics/Diagnostics.ino b/tools/Diagnostics/Diagnostics.ino
index 7d116c2..0f85740 100644
--- a/tools/Diagnostics/Diagnostics.ino
+++ b/tools/Diagnostics/Diagnostics.ino
@@ -10,8 +10,7 @@
  **************************************************************/
 
 // Select your modem:
-#define TINY_GSM_MODEM_SIM800
-// #define TINY_GSM_MODEM_SIM900
+// #define TINY_GSM_MODEM_SIM800
 // #define TINY_GSM_MODEM_SIM808
 // #define TINY_GSM_MODEM_SIM868
 // #define TINY_GSM_MODEM_SIM900
@@ -155,7 +154,7 @@ void loop() {
     delay(10000);
     return;
   }
-  SerialMon.println(" OK");
+  SerialMon.println(" success");
 #endif
 
 #if TINY_GSM_USE_GPRS && defined TINY_GSM_MODEM_XBEE