Dont upgrade.

The new update needs to be activated again. It does not remember the activation number from your iOBD2 dongle. I have mine tucked inside my dash so I had to take apart some things to get the number again. I clicked on activate, typed in the number, and it said activation successful. Then clicking on the diagnose icon it says connection unsuccessful. If I click on the activate icon again, the field is blank like I never entered a number. I am running this on a iPhone 6s.

Steve-Brampton about iOBD2-BMW, v1.5