Dennis, sorry if I wasn’t clear. The current 670g system is FDA approved. It may be as buggy as it is in part due to safeguards and compromises the FDA insisted on.
My understanding is that Medtronic has been developing a new transmitter for the 670g to address some of these issues. That updated, unreleased transmitter is up for FDA approval.
In the meantime, with my current sensor, I have had a bg required or calibration required alert in the middle of the night for the past 4 days. The transmitter fix can’t come soon enough.