If the phone asks for a previously synced Google account, this is the FRP lock in action. You must enter the email and password that was on the phone before the reset. If you cannot remember it, you will need to verify your identity via Google's account recovery options on a computer browser.
Your phone may ask for your PIN, pattern, or password for security. Enter it, then tap Erase all data again to confirm. how to factory reset oukitel c35 top