hi. thank you for using bosstech.co.za. to hard reset the phone is not very difficult job because there are few methods of hard resetting an android smartphone, one of the methods has to work for any android phone. sometime two methods works for one device, meaning you can hard reset the device in two different way, it depends which method you think is the easiest or which method you understand better. to hard reset a phone you need to use the physical keys on the body of the phone , the physical keys are the volume buttons and the power button.
there are few things you need to understand before you start hard resetting your netsurfer typhoon. you will lose all the data stored on the device storage such as music, pictures, videos, documents, whatsapp files and many more so you need to backup your file before you hard reset the phone because hard reset is forced to remove all data and you don't have an option to choose where the files should be deleted or not.
another thing that you might face by hard resetting your phone is the google frp verification. after hard resetting the netsurfer typhoon you will be asked to verify that you are the owner of the device by entering the google account that was used on that phone before it was hard reset. this means that if the device is not yours you stole it from some one it means you will not be able to use the phone until you get hold of the original owner of the phone. but incase you forgot the login details we can assist you bypass the google frp, just drop a new question by using the ask box on top.
follow the hard reset instructions given here, tested to work for any android phone.