Country: Norway
My car: Citroen C5 MK I - 2003
Radio: JY-UQS04N4G-B
Hi, I have a problem, after logging in with google on the head unit it has deleted all my google contacts, why is this happening ??
Country: Nederland
My car: Alfa Romeo Giulietta QV, 2015
Radio: JY-UQD10N4G-H
I had the same issue, it's because Google sync is turned on by default in the Radio's settings; turn that off.
I could get my contacts back by getting into my Google account on my PC and restore an older backup.
Country: USA
My car: 2002 Honda S2000
Radio: JY-HQS01N4G-2
I've had the Joying do this to me a few times. You don't need to restore from a backup. If you go to your google contacts page (on a web browser) and go to trash, they are all in there. Just select all and click restore and they will all come back.