Hi Remi, If you adapt your iBead Configurator as described below, it'll work with firmware 3.141 Regards, Milan private void loadRadio(System.Windows.Forms.TextBox textBox, System.IO.Stream stream, int index) { int freq; stream.Seek(120+(3*2)*(index-1), System.IO.SeekOrigin.Begin); freq = stream.ReadByte(); freq += stream.ReadByte()<<8; freq += stream.ReadByte()<<16; textBox.Text = Convert.ToString(((decimal)(freq) / 1000), NumberFormatInfo.InvariantInfo); } private void saveRadio(System.Windows.Forms.TextBox textBox, System.IO.Stream stream, int index) { int f1, f2, f3, freq; freq = (int)(Decimal.Parse(textBox.Text, NumberFormatInfo.InvariantInfo) * 1000); f3 = freq >> 16; f2 = ( freq & 0xff00 ) >> 8; f1 = freq & 0xff; stream.Seek(120+(3*2)*(index-1), System.IO.SeekOrigin.Begin); stream.WriteByte((byte)f1); stream.WriteByte((byte)f2); stream.WriteByte((byte)f3); }