MDBT42Q Software Serial on any pins not working

From what I can see I can setup Serial on any pins. Folowing this page https://www.espruino.com/USART
I generated this code

var s=new Serial();
s.setup(9600, {rx:D25, tx:D26});
s.on('data', function (data) { print(" "+data); });

Expecting a response when I execute this code

s.print("Hello World");

I get nothing, no output at all.
So far I have had little success with this product in terms of interfacing.
Anyone know what I am doing wrong.
P.S. I am on Firmware version 2v01.

Thanks