Hi, not sure where you sourced the information in your post, I've been on their website the troubleshooting for the Amplink is non existent. Is this information available on a website somewhere? Really interesting, two of the serial numbers are 56027185 and 56034376 both of these have lost triggers 1 and 3. Been through the original packaging for them and all we receive here in the UK is a quick start leaflet, which up to now has worked great. If the company knows that certain serial numbers need a reprogram why wouldn't they let me know? I've refitted the third back onto my bike, ground trigger on 1 not functioning all others seem OK it's serial number is 56031096. When I say they have blocked me, none of my emails are answered and any attempt to contact them through their website is ignored. I wonder if they realise I'm UK based and don't want the aggravation of international postage and potential customs problems? Not once did they ask me to return the units for investigation/repair!! Bedifferent, I can fully understand your reluctance to become involved in the problems I am having and I would never ask you to. I've joined various forums to make as many bikers/ kit car owners and anyone else who may use these aware of a potential problem, also trying to elicit a response from the company. The only question I would encourage anyone to ask the company would be along the lines of " can the new app cause issues with older Amplinks as they have heard on their forum that it can"?