Hey Friends  
Today I Want To Tell You Something That I
Found On My Phone
If You Have Problem With Contact Syncing And Facebook, Twitter, Instagram Close Automatically In
Your Handset New Flyme 6 G. Version So
Please Try This Trick I Tested In My Meizu  M3s.
First of all
Go to settings - Factory Data Reset
And Do Hard Reset Clear All Data

Note:- please backup your data while do this.

And Then You Will See Your Phone Will Be Performe Good Better Then Before And When You Install Google Installer Do All Formality Like Sign Up OK And
1 Thing More This Is Really Very Important
When You Login Your Meizu Account After
Login Your Phone Will Ask You To Things:-
1. Contact Syncing etc.
2. User interface etc.

So Please Don't Choose Contact Syncing And   Do Next Problem Will Solve..
Trust Me Friends Now My Phone Work Well