i update mannualy firmware CN_1.13.40.661 to CN_1.15.40.1548 but now i cant use Google play store is says "Unfortunately, Google Play services has stopped". I done factory reset and installed play store and services and framework again but still is the same. Dose some1 know how to restore firmware to previous version(CN_1.13.40.661)? Phone is not rooted.

goto XDA forum for your queries. You will get more info there by searching too.

I solved the problem, thanks.