I've been trying to get a hold of Tom from BestRadarDetectors but he is not responding to my emails, so i figured ill try it here:
My BT module will not allow me to update firmware from ALP Connect app. It tells me that i have older BT module and to update to new one. However, i purchased everything from Tom on 6/26/2015 AND i was able to update to 5.1.4 using BT module and Nexus 6 just fine.
I loaded 5.2.1 using USB Stick the other day as there was no other way to do it. So this brings up a question, is my BT module just went bad or it is OLD but why would it let me load 5.1.4 using it? Besides this issue everything is working fine.