Can't get through to Google Play

So I was resetting my Lenovo A616 to factory reset because I can't update my WhatsApp.. The last time I reset it, they worked perfectly.. I can download anything from Google Play.. But now, I don't know why I can't get through to Google Play at all.. I was trying to sign in but it said "can't establish a reliable connection server. This could be a temporary problem or your Android device may not be provisioned for data services. If it continues, call Customer Car" So what it all about?? Can you help me?? I don't know what's going on with my phone..

Download file manager by Cheetach mobile from apkpure.com using your phone's browser, then go to settings, security and check Untrusted sources, go to My files > all files > navigate to folder "Download" > open the apk file of file manager > (Next) Install > wait... > open > On file manager click manage files > on the top bar select "/" > Go to sys > system > and search for hosts file. If it is here, then it is causing the problem. Only way to delete it is Root access. If it isn't here try doing factory reset again.
McAPc

Posted via the Android Central App

Do not do the above mentioned.

Open your application manager and wipe Google Play app data. This will fix it.