Hi. Since the introduction of android 5.0 which is called the android lollipop, whenever you hard reset an android device you will need to provide the previous email address that was used on that android phone. This is to prevent another person from using the phone without the owners permission in case it was stolen or lost. You need to login to the device using the email address plus the password of the email address. But there is a way of bypassing this google verification protection (google frp).
To remove the frp on the Vodafone vfd 100 is not a very hard job and anyone can do it if they have the required tools and download the required files. You will need to have a computer, nowadays everybody has access to a computer. You will also need a USB cable to connect the phone to the computer. Now that you have all the required tools, the next thing is to download the required file to your computer so it means you will need internet connection.
Download the firmware here, download only the google account reset tool do not download the full firmware of the Vodafone vfd 100. Next you will need to download the sp flash tool here, this is the tool that you are going to use to flash the firmware that you downloaded in the previous step. The last file to download is the vcom driver. Download the vcom drivers here. You cannot flash your phone if this drivers are not installed on your computer because your phone will not be detected by the computer when you connect it with the USB cable. Click here for instructions on how to install the vcom drivers.
Now that you have all the required tools and the required files, it is time to remove the google frp verification. Extract all the files that you downloaded out of the zip files, you might need to use winrar to extract the zip files. Open the sp flash tool folder and scroll to "fla_tool" and double click this file to run the flash tool. Click the scatter loading button on the flash tool and navigat to the extracted google account reset tool, double click the file named "MT....." not the instructions file. Next click the format button on top and check the manual format option. Open the instructions file from the google acc reset tool with a wordpad. Copy the codes and paste them on you flash tool, delete the existing ones on your flash tool and paste the ones copied from the wordpad. Make sure you paste the first code to the first box and the second code to the second box.
Now you are ready to go. Click the start button on top and connect your phone to the computer using the USB cable. Wait for a green tick to indicate that flashing is done. Then disconnect the phone and switch it on.