Actually, iPhone has a default option to delete contacts on the current iPhone by factory reset;or erase iPhone data by restore to factory settings. Unfortunately, this two method will not permanently erase your contacts,which is still available to others with the help of data recovery software,such as iPhone contacts recovery software in market.
|erase all contacts on iPhone permanently|
Deleting Contacts from iPhone Permanently with iPhone Data Eraser
As I recommend you the data eraser above, which is fully capable of performing a quicker and easier contact erasing process on all iPhone models at once. It not only delete contacts from iPhone without recoverable, but also rewrite with radom data in order to cover the erasing track. In addition to contacts, text messages, videos, photos, account info, passwords and more can be erase by this iPhone data eraser tool.Let’s show you the use guide step by step to deleted iPhone contacts permanently.
Free download the iPhone data eraser(Win&Mac) version:,and start to delete all iPhone contacts:
Permanently Wipe All Contacts from iPhone Before Selling:
Step 1 Install Program and Connect iPhone Device to PC
Before you start using it, you need to install and set it up, it has gained a new-look installer, easy to install. When the installation is complete, launch it! It provides four eraser modes, select the right option you need.
Step 2 Select "Erase Deleted Files" Option
As you can see in the following panel, It provides four options: "Express Cleanup" "Erase Private Data" "Erase Deleted Files" and "Erase All Data" , select right one you need. This article will take "Erase Deleted Files" as an example:
Step 3 Scan Deleted Data on iPhone Device
In this step, it will automatically analyze and scan all your deleted files in your iPhone device; generally it takes few minutes to complete the process depending on the file, all of your deleted files will be displayed in the panel.
Step 4 Start to Permanently Erase All Contacts on iPhone
Now it will officially start wiping iPhone contacts or other files, keep your iPhone connected during the whole course. When it's complete. Your iPhone gets started with a clean slate now.
As you can see, simple deletion is not enough, all deleted files can be scanned.
Download the iPhone data eraser software for free:
Tips: You can have a try with iPhone Data Eraser software. With it, you can remove a batch of contacts from iPhone's internal memory and SIM card with ease. What's more, the deletion is permanent and no any software can recover those erased contacts on iPhone. You can also use it to delete text messages,App caches, photos, videos, emails, account info, passwords, etc.from iPhone permanently.
What’s more,if you iPhone running slowly,you can use this iPhone data eraser software to erase App Caches permanently and free up Space on iPhone,you can read this use guide about how to speed up and Free Up Space on your iPhone.
Tips: All iPhone models can be supported by this program, such as iPhone 6, iPhone 6 plus, iPhone 5S, iPhone 5C, iPhone 5, iPhone 4S, iPhone 4, iPhone 3GS, etc.