Edge 810 wont sync via Bluetooth

I get "upload failed" message on my edge

What I've tried so far
Removed all activities from edge
Factory reset the edge
updated firmware to beta on the edge
removed/forget devices from phone & edge settings
removed ios app
rebooted phone
rebooted garmin
re downloaded app
changed password
tryed to sync on PC with Garmin Express
I note there was an IOS app update last night - still wont work

please help me not to have to use a cable