diff --git a/src/main.cc b/src/main.cc
index 4c31332..d3cb907 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -74,12 +74,12 @@ ssd1306::ssd1306() {
     write_cmd(SET_DISP_OFFSET); // No offset
     write_cmd(0x00); // No offset
     
-    write_cmd(SET_DISP_START_LINE | 0x00); // Resolution and layout
+    write_cmd(SET_DISP_START_LINE); // Resolution and layout
     write_cmd(SET_SEG_REMAP | 0x01);
     write_cmd(SET_COM_OUT_DIR | 0x08); // Scan from COM[N] to COM0
 
     write_cmd(SET_COM_PIN_CFG);
-    write_cmd(0x02);
+    write_cmd(0x12);
 
     write_cmd(SET_CONTRAST);
     write_cmd(0xFF);
@@ -90,30 +90,28 @@ ssd1306::ssd1306() {
     write_cmd(0x80);
 
     write_cmd(SET_PRECHARGE);
-    write_cmd(0x22);
+    write_cmd(0xF1);
     write_cmd(SET_CHARGE_PUMP);
     write_cmd(0x14);
 
-    write_cmd(SET_DISP | 0x01);
+    write_cmd(SET_VCOM_DESEL);
+    write_cmd(0x30);
 
+    write_cmd(SET_DISP | 0x01);
 
     write_cmd(SET_MEM_ADDR); 
     write_cmd(0x00); // Horizontal
 
-    /*
-    write_cmd(SET_VCOM_DESEL);
-    write_cmd(0x30);
-    */
     write_cmd(SET_COL_ADDR);
     write_cmd(0);
     write_cmd(127);
     write_cmd(SET_PAGE_ADDR);
     write_cmd(0);
-    write_cmd(63);
+    write_cmd(0x63);
 }
 
 void ssd1306::test() {
   static bool flip = true;
-  uint8_t buf[2] = {0x40, 0x00};
+  uint8_t buf[2] = {0x40, 0xFF};
   write_data(buf, 2);
 }