Here is Vivo Y81 Y83 Pro 2019 File Modified With Official Firmware (stock ROM); Download Vivo Patten Lock Reset Tool 2019 One-Click Frp File. Operating system optimization, hang on logo or stuck logo only fix, boot loop fix, This firmware also helps to reset Gmail bypass
How does all this happen and what is its solution When you hard reset your mobile, only the pattern lock or pin lock of your mobile is reset. But you cannot remove your Gmail id inside your mobile So, this is how to get out of this problem.
First of all, keep in mind that if you know your Gmail, then you can easily go ahead by entering it.
If you have forgotten your Gmail id, you can restore it by selecting the Gmail Forget option In which you may need all these things Gmail id (Never mind the password, no matter what) you select the option for forget If you do not know your Gmail too, you can do this by entering your registered mobile number. When you enter your register mobile number, then the one-time password will come in your register mobile number. As soon as you enter that password you will be allowed to create a new password.
If you fail to do all this, Then you can use this method
Here is a tutorial that you can start by looking at this process.
Here is the latest firmware and tool for Vivo y81 for update and flashing with the driver, tool