I spent HOURS on my first Index bought from Garmin trying to get it to work:
I then spend 40 minutes on a call with Garmin going through much of the above with them on the phone. They did an RMA and I returned the unit, 2 weeks later I got a replacement new unit.
You guessed it same saga all over again. Called Garmin and got a refund. These are simply NOT fit for use and breach the offer of sale as they DO NOT WORK.
Garmin brand is associated with poorly engineered software and even poorer user interface and Iexperience.
Niw they have removed the weight sensor option on their devices they have taken the final step in pissing off users as there is no simle way now of using 3rd party scales such as the Tanta BC-1000 which worked perfectly before hand.