For your problem i am sending this file to all who wanted to Use baud rate 230,400 from LG RD2030 by using a cable without FTDI chipset
By replacing this given file to file in the folder LG Usb/Drivers/LG/LGSerial/LG USB MODEM/MDMGEN_2K
you can replace only after downloading setup of rconnect lg rd2030 usb from the Reliance Web Site.
Salute Me.
and plz send me firmware and .dll file of LG RD2030
MDMGEN_2K.rar