[gpsmap 66s bugs?]

1 hour ago, Atlas Cached said:

 

Why would you repeatedly replace your GPSMAP 66 with another identical unit running the same software and expect different results?

 

I suspect another update will be available very soon, with addition bug fixes and functionality enhancements.

That's the advice I keep getting from Garmin support.  They say that the engineers can't duplicate my issues with their devices.

[gpsmap 66s bugs?]

I am on my 3rd 66s and each of them has been very buggy: many crashes/powering off; bad battery life; total elevation gain/loss during a trip way off; etc.  I was hoping firmware 2.5 would help, but the only difference I have noticed is that it now won't crash when trying to delete all waypoints.  Doesn't seem like a hardware issue.  It's discouraging that there has only been one firmware update since August 2018.

[GPSMAP 66 Firmware 2.50 Now Available, 2019-02-01]

I was excited to see the updare, but disappointed that total descent/asscent has not been fixed. The values are still way too high. 

[GPS 66 will not stop charging via usb]

Good to hear that there are a lot of improvements!  My 66s is really buggy.  (I'm on my 3rd one).  Can't wait for the public release--I can't believe there hasn't been one since the initial firmware was established in August!

[GPS 66 will not stop charging via usb]

Glad to hear you seem to be in good shape.  Can I ask what firmware your new 66 is running?