I had mine done today to the latest version took 3 hours, a 40 mile ride there and 40 back for no reason at all the connection issues are exactly the same, had the Salesman come out to check it as he was supposed to be the TFT guru he had less idea on connecting all the bits Nav, Sena, iphone, TFT than I did, and said "id contact the dealer where you bought it"
I Did as soon as I got home and they went mad saying the bike is under 3 years warranty and they should have investigated it fully
I had an idea to drop the connection of my Iphone 11 proXL and paired my sons Samsung S10 plus Instantly everything connected correctly the TFT to the pahon to the nav to the sena and all functions worked straight away music, Nav Phone and the app thats only ever connected once since ive had the bike
ive done 3 routes and turned the bike on and off at least 20 times over the last 8 hours and each time it works perfectly
so there lyes the problem its an apple issue, well for my bike it was anyway its without a doubt worth a try to connect another phone just to see if it will work, Ive just ordered him a new S21 and im having the S10 just to use on the bike with a cheap £15 per month EE sim card in it with unlimited calls and texts and 15Gig of data per month, ill forward all calls from the Iphone to the S10 when im out on the bike !!
Not exactly the best resolution but a resolution none the less, and one that will allow me to use all the bike functions as they were supposed to be used till they actually find a software update that allows you to use an Iphone !!
Rob