how to unlock screen lock without lose any data?

[AC Question]

(My english is not good) i have huawei GR3 4G LTE TAG-L01 and i forgot password pin. so i tried anything to unlock this phone. but i faild. otherwise i don't have gmail of this phone. so what can i do for this?

 

[belodion]

You don't know your Google account details? https://forums.androidcentral.com/showthread.php?t=409154