diff --git a/help.txt b/help.txt
deleted file mode 100644
index 22803cb2d..000000000
--- a/help.txt
+++ /dev/null
@@ -1,68 +0,0 @@
-additional libopenui patch:
-diff --git a/src/bitmapbuffer.h b/src/bitmapbuffer.h
-index 146c815..f5ce245 100644
---- a/src/bitmapbuffer.h
-+++ b/src/bitmapbuffer.h
-@@ -36,7 +36,7 @@ constexpr uint8_t STASHED = 0x33;
- #define APPLY_OFFSET() x += this->offsetX; y += this->offsetY
- #define RESTORE_OFFSET()  this->offsetX = offsetX, this->offsetY = offsetY
- 
--#if defined(LCD_VERTICAL_INVERT)
-+#if defined(LCD_VERTICAL_INVERT) && 0
-   #define MOVE_PIXEL_RIGHT(p, count)   p -= count
- #else
-   #define MOVE_PIXEL_RIGHT(p, count)   p += count
-@@ -156,7 +156,7 @@ class BitmapBufferBase
- 
-     inline const pixel_t * getPixelPtrAbs(coord_t x, coord_t y) const
-     {
--#if defined(LCD_VERTICAL_INVERT)
-+#if defined(LCD_VERTICAL_INVERT) && 0
-       x = _width - x - 1;
-       y = _height - y - 1;
- #endif
-@@ -401,7 +401,7 @@ class BitmapBuffer: public BitmapBufferBase<pixel_t>
- 
-     inline const pixel_t * getPixelPtrAbs(coord_t x, coord_t y) const
-     {
--#if defined(LCD_VERTICAL_INVERT)
-+#if defined(LCD_VERTICAL_INVERT) && 0
-       x = _width - x - 1;
-       y = _height - y - 1;
- #endif
-@@ -410,7 +410,7 @@ class BitmapBuffer: public BitmapBufferBase<pixel_t>
- 
-     inline pixel_t * getPixelPtrAbs(coord_t x, coord_t y)
-     {
--#if defined(LCD_VERTICAL_INVERT)
-+#if defined(LCD_VERTICAL_INVERT) && 0
-       x = _width - x - 1;
-       y = _height - y - 1;
- #endif
-diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
-index c256d0b..dede0c9 100644
---- a/src/mainwindow.cpp
-+++ b/src/mainwindow.cpp
-@@ -179,9 +179,21 @@ void MainWindow::invalidate(const rect_t & rect)
-     invalidatedRect = rect;
-   }
- }
--
-+#include "lvgl/lvgl.h"
-+extern lv_obj_t * canvas;
-+extern BitmapBuffer lcdBackup;
- bool MainWindow::refresh()
- {
-+  if (invalidatedRect.w) {
-+    lcdBackup.setOffset(0, 0);
-+    lcdBackup.setClippingRect(0,LCD_W,0, LCD_H);
-+    fullPaint(&lcdBackup);
-+    lv_canvas_copy_buf(canvas, lcdBackup.getData(), 0, 0, LCD_W, LCD_H);
-+    lv_img_cache_invalidate_src(lcdBackup.getData());
-+    lv_obj_invalidate(canvas);
-+  }
-+  return false;
-+
-   if (invalidatedRect.w) {
-     if (invalidatedRect.x > 0 || invalidatedRect.y > 0 || invalidatedRect.w < LCD_W || invalidatedRect.h < LCD_H) {
-       TRACE_WINDOWS("Refresh rect: left=%d top=%d width=%d height=%d", invalidatedRect.left(), invalidatedRect.top(), invalidatedRect.w, invalidatedRect.h);