diff --git a/README.md b/README.md
index b70b6a4..7db6c6b 100644
--- a/README.md
+++ b/README.md
@@ -136,13 +136,16 @@ Rotation of the display:
 ## Quick start
 <img src="images/board3.jpg" width="830" height="400"><br />
 
-0. **[Arduino core for the ESP32](https://github.com/espressif/arduino-esp32) v2.0.0 or higgest is required!**
-1. In ArduinoIDE - upload sketch data via Tools→ESP32 Sketch Data Upload ([it's here](images/board2.jpg))
-2. Upload the sketch to the board
-3. Connect to yoRadioAP acces point with password 12345987, go to http://192.168.4.1/ configure and wifi connections.  \
+- <span style="color: red; font-weight: bold; font-size: 22px;text-decoration: underline;">Arduino IDE version 2.x.x is not supported. Use Arduino IDE 1.8.19</span>
+- <span style="color: red; font-weight: bold; font-size: 22px;text-decoration: underline;">ESP32 core version 2.0.0 or higgest is [required](https://github.com/espressif/arduino-esp32)!</span>
+1. Generate a myoptions.h file for your hardware configuration using [this tool](https://e2002.github.io/docs/myoptions-generator.html).
+2. Put myoptions.h file next to yoRadio.ino and restart Arduino IDE.
+3. In ArduinoIDE - upload sketch data via Tools→ESP32 Sketch Data Upload ([it's here](images/board2.jpg))
+4. Upload the sketch to the board
+5. Connect to yoRadioAP acces point with password 12345987, go to http://192.168.4.1/ configure and wifi connections.  \
 _\*this step can be skipped if you add WiFiSSID WiFiPassword pairs to the [yoRadio/data/data/wifi.csv](yoRadio/data/data/wifi.csv) file (tab-separated values, one line per access point) before uploading the sketch data in step 1_
-4. After successful connection go to http://\<yoipaddress\>/ , add stations to playlist (or import WebStations.txt from KaRadio)
-5. Well done!
+6. After successful connection go to http://\<yoipaddress\>/ , add stations to playlist (or import WebStations.txt from KaRadio)
+7. Well done!
 
 **Localization:**
 Если Adafruit_GFX ещё не русифицирована, русифицировать её, заменив файл Arduino/libraries/Adafruit_GFX_Library/glcdfont.c файлом [yoRadio/fonts/glcdfont.c](yoRadio/fonts/glcdfont.c)