Syncing Oneplus 3 contacts to PC? The title says it all:
I want my OnePlus 3 to automatically sync my contacts to my PC (Google)

I've been asking Oneplus, but they either have no idea or aren't willing to share it.

One supporter even said that these phones don't sync contacts!

Anyone help please?
Your phone should always sync contacts as long as you are using a Google Account. You can always go to Settings->Accounts->Google and check if "Contacts" is enabled to make sure that they are being synced. If you want to view them on a PC go to the Google Contacts website.