have you checked the battery in the fob ? if the screw thats holds it together isn’t obvious then it’s normally under the sticker on the back if you stuck and have to remove it , its quite easy , i wont post too many details here for obvious reasons , but if you get really stuck PM me
thats if you can’t fix it , and if your not too far from erith i’ll give you a hand
Put new batteries into the fob and is working now without having to recode anything.
I think I will take the fob to a datatool supplier to see if I can get a replacement because I still have to press it a couple of times before it works and is not the type that has a screw to hold it together, it just clips together and comes apart too easily.
My data tool packed up and left me stranded (on the drive!). Mine was, I guess about 8 years old. It could have packed up miles away but thankfully did not. Un picking it was not as traumatic as I anticipated. Work from the box and see where they have cut into your wiring harness. Mine spliced into the fuel pump and the starter solenoid. In addition it piggy backed some leads going into the fuse box. The original wiring harness diagram was also essential. All in all an hours work. My thoughts are now that these things are not as well engineered as the OE parts of your bike and you are living on borrowed time until it leaves you stranded.
Best of luck