It is a fairly simple process to create a new contact on your iPhone, and it is one of the best ways to store phone numbers or email addresses in your iPhone so that you can contact them regularly with your thumb. But if you have a large list of contacts that is largely filled with people that you no longer communicate with, or if you have a contact that is full of outdated information, then you might as well delete all contacts from iPhone. But it isn't extremely obvious about how to delete contacts from iPhone, iPhone Data Eraser can help you in terms of deleting iPhone data.
iPhone Data Eraser is a powerful software for iPhone 5s or iPhone 4 users to delete iPhone data, including photos, contacts, messages, songs and so on. The most laudable feature is that data cannot be recovered again once they are deleted by iPhone Data Eraser, even when you want to recover deleted contacts from iPhone later.
Download the free and trial version to give it a shot!
After downloading the iPhone Data Eraser on your computer, connect your iPhone to it then, and run this program on your computer. Your iPhone will be detected automatically, and you will get an interface below.
You should choose the "ERASE ALL DATA ON DEVICE" option, so that you can continue the subsequent steps.
There are three choices available for you to delete your data. Among the "High, Medium, Low", you are recommended to choose the "Medium" level, which takes the moderate time in deleting. Click "Start" button to begin the processing.
When the deleting process is over, your iPhone will become a completely new iPhone. You can import the data that you previously backed up to your iPhone and enjoy it as you wish.