diff --git a/lib/Adafruit_SH1106-gemu-1.0/Adafruit_SH1106.cpp b/lib/Adafruit_SH1106-gemu-1.0/Adafruit_SH1106.cpp
index fac803b53..7f368c5d5 100644
--- a/lib/Adafruit_SH1106-gemu-1.0/Adafruit_SH1106.cpp
+++ b/lib/Adafruit_SH1106-gemu-1.0/Adafruit_SH1106.cpp
@@ -72,7 +72,7 @@ void Adafruit_SH1106::DisplayInit(int8_t p,int8_t size,int8_t rot,int8_t font) {
   //}
 }
 
-int16_t Adafruit_SH1106::Begin(int16_t p1,int16_t p2,int16_t p3) {
+void Adafruit_SH1106::Begin(int16_t p1,int16_t p2,int16_t p3) {
   begin(p1,p2,p3);
 }
 
diff --git a/lib/Adafruit_SH1106-gemu-1.0/Adafruit_SH1106.h b/lib/Adafruit_SH1106-gemu-1.0/Adafruit_SH1106.h
index b0562629b..efa14e8f1 100644
--- a/lib/Adafruit_SH1106-gemu-1.0/Adafruit_SH1106.h
+++ b/lib/Adafruit_SH1106-gemu-1.0/Adafruit_SH1106.h
@@ -144,7 +144,7 @@ class Adafruit_SH1106 : public Renderer  {
 
   void DisplayOnff(int8_t on);
   void DisplayInit(int8_t p,int8_t size,int8_t rot,int8_t font);
-  int16_t Begin(int16_t p1,int16_t p2,int16_t p3);
+  void Begin(int16_t p1,int16_t p2,int16_t p3);
   void Updateframe();
   void dim(uint8_t contrast);
 
diff --git a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd2in9.cpp b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd2in9.cpp
index 81fa618a8..556f9624f 100644
--- a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd2in9.cpp
+++ b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd2in9.cpp
@@ -77,11 +77,10 @@ void Epd::DisplayInit(int8_t p,int8_t size,int8_t rot,int8_t font) {
   fillScreen(BLACK);
 }
 
-int16_t Epd::Begin(int16_t cs,int16_t mosi,int16_t sclk) {
+void Epd::Begin(int16_t cs,int16_t mosi,int16_t sclk) {
   cs_pin=cs;
   mosi_pin=mosi;
   sclk_pin=sclk;
-  return 0;
 }
 
 
diff --git a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd2in9.h b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd2in9.h
index 3fc8ea190..bf0863cd0 100644
--- a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd2in9.h
+++ b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd2in9.h
@@ -91,7 +91,7 @@ public:
 
     void DisplayOnff(int8_t on);
     void DisplayInit(int8_t p,int8_t size,int8_t rot,int8_t font);
-    int16_t Begin(int16_t p1,int16_t p2,int16_t p3);
+    void Begin(int16_t p1,int16_t p2,int16_t p3);
     void Updateframe();
 
 private:
diff --git a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd4in2.cpp b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd4in2.cpp
index 923e72106..85da5848d 100644
--- a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd4in2.cpp
+++ b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd4in2.cpp
@@ -90,11 +90,10 @@ void Epd42::DisplayInit(int8_t p,int8_t size,int8_t rot,int8_t font) {
   fillScreen(BLACK);
 }
 
-int16_t Epd42::Begin(int16_t cs,int16_t mosi,int16_t sclk) {
+void Epd42::Begin(int16_t cs,int16_t mosi,int16_t sclk) {
   cs_pin=cs;
   mosi_pin=mosi;
   sclk_pin=sclk;
-  return 0;
 }
 
 void Epd42::Init(int8_t p) {
diff --git a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd4in2.h b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd4in2.h
index 9b140c0d8..1ca993873 100644
--- a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd4in2.h
+++ b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epd4in2.h
@@ -113,7 +113,7 @@ public:
 
     void DisplayOnff(int8_t on);
     void DisplayInit(int8_t p,int8_t size,int8_t rot,int8_t font);
-    int16_t Begin(int16_t p1,int16_t p2,int16_t p3);
+    void Begin(int16_t p1,int16_t p2,int16_t p3);
     void Updateframe();
 
 private:
diff --git a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epdpaint.cpp b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epdpaint.cpp
index d201c3d63..4d27e00a4 100644
--- a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epdpaint.cpp
+++ b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epdpaint.cpp
@@ -37,8 +37,7 @@ Renderer(width,height) {
 void Paint::DisplayOnff(int8_t on) {
 }
 
-int16_t Paint::Begin(int16_t p1,int16_t p2,int16_t p3) {
-  return 0;
+void Paint::Begin(int16_t p1,int16_t p2,int16_t p3) {
 }
 
 void Paint::Updateframe() {
diff --git a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epdpaint.h b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epdpaint.h
index c70d762d1..b54634f74 100644
--- a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epdpaint.h
+++ b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/epdpaint.h
@@ -49,7 +49,7 @@ public:
 
     void DisplayOnff(int8_t on);
     void DisplayInit(int8_t p,int8_t size,int8_t rot,int8_t font);
-    int16_t Begin(int16_t p1,int16_t p2,int16_t p3);
+    void Begin(int16_t p1,int16_t p2,int16_t p3);
     void Updateframe();
 
 };
diff --git a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/renderer.cpp b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/renderer.cpp
index 722d5ffb1..01b8dc7c3 100644
--- a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/renderer.cpp
+++ b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/renderer.cpp
@@ -71,12 +71,13 @@ void Renderer::setAddrWindow(uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1)
 void Renderer::DisplayOnff(int8_t on) {
 
 }
+
 void Renderer::DisplayInit(int8_t p,int8_t size,int8_t rot,int8_t font) {
 
 }
 
-int16_t Renderer::Begin(int16_t p1,int16_t p2,int16_t p3) {
-  return 0;
+void Renderer::Begin(int16_t p1,int16_t p2,int16_t p3) {
+
 }
 
 void Renderer::Updateframe() {
diff --git a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/renderer.h b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/renderer.h
index 3f87f2a89..09347ae29 100644
--- a/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/renderer.h
+++ b/lib/esp-epaper-29-ws-20171230-gemu-1.1/src/renderer.h
@@ -30,7 +30,7 @@ public:
 
   virtual void DisplayOnff(int8_t on);
   virtual void DisplayInit(int8_t p,int8_t size,int8_t rot,int8_t font);
-  virtual int16_t Begin(int16_t p1,int16_t p2,int16_t p3);
+  virtual void Begin(int16_t p1,int16_t p2,int16_t p3);
   virtual void Updateframe();
   virtual void dim(uint8_t contrast);
   virtual void pushColors(uint16_t *data, uint8_t len, boolean first);