RN4871 BLE Command Mode

Hello!

I am trying to use a Microchip RN4871 BLE Module with my Arduino Micro. With the PC, using Tera Term, I can enter the command mode - pressing three times "$". Now I want to enter this mode with my arduino (to automate the configuration setup), but I cannot make it enter the command mode. I already tried to use Serial.write('$'), Serial.print("$") at no avail. Any help would be appreciated!

Thank you!

Baud rate?

Do you have any solution?

I tried to use process described in http://www.microchip.com/forums/m979676.aspx (by JuliaDee Sunday, March 26, 2017 1:04 AM) and without any results. I don't have USB serial, so unfortunatelly I cannot see the results. I just send command by serial from MCU.