While Trying to fix the Red Box of death in the App I found a bunch of references suggesting replacing the sim would resolve the issue. FYI it did not!

But just in case anyone else needs to replace their sim card for another reason i thought i would share instructions on how i did it because i seem to have a slightly different model to the other instructions i found.

I took some pictures and combined and attached

Steps:

1. Remove the two panels on the left hand side of the bike. you will need a 5mm (i think) alan key and a Philips screwdriver to remove these.
2. My GSM module was attached with one screw (number 1 (and 6) in the picture) and two clips (Number 2 in the picture) that it just slid down into. I removed the module from the bike and unplugged it from the connector. 
3. There were 4 screws holding the lid on and i had to use my finger nails to gentle pry the lid off the module. There is a fine rubber band (number 3 in the picture) don't loose it (Or forget to put back on ;-))
4. My Sim holder was not on the top as other tutorials showed so i had to take the board out. I loosened the two top screws (number 4 in the picture) and completely removed the screw next to the capacitor (number 5 on the picture). 
5. I gently took the board out sliding it off the top screws. To locate the SIM holder (7 on the picture) on the underside. be careful removing the wires at the top and don't break the wires to the backup battery.
6. I had to lift a sticker off the sim (number 8 on the picture) to be able to remove the old one and put in the new one.
7. Stick everything back where you found it.

Thats it. all seems to work but still getting red box of "No Signal"