2. Clear cache and data for the Contacts app.
a. If you've saved any contacts since you last synced, back them up. Open the Contacts app and touch
> Settings > Export. Then export to a VCF file and email the file to yourself.
b. Clear the cache and data for the Contacts app.
c.
Download the VCF file that you emailed to yourself, then import those contacts (Contacts > >
Settings > Import).
Fix issues : Account and sign-in issues 303