How to permanently erase data from iPhone without restoring?

“Hello, I need to permanently wipe data (text messages, contacts, photos, videos) off iPhone 4s, because I have a new iPhone 5c, and I want to sell my old iPhone 4s, but there are many Privacy Information stored in my iPhone 4s, even though I deleted them, but I tried some data recovery program, I was totally surprised to learn that it can be able to restore my deleted text messages, contacts, photos from my iPhone 4s, I'm very worried about, if sell my iPhone to others, they may recover my personal data. So, I want to know if there any ways that can permanently deleted, erase everything from iPhone 4s without restoring,  please help!  recommend some method or some iPhone erase software!
I need to compeletly wipe text messages, contacts, photos off iPhone 4s, please help!!!”--Ask by Hamnlly in apple discussions

Notes: Please Completely DELETE ALL your data and personal information safely before selling your iPhone, or gift to your friends and relatives.

To permanently erase data on your iPhone 5S/5C/5/4S/4 before sell or give away to a friend or relative,you must to use a iPhone Data Eraser tool.

The iPhone Data Eraser is the best iPhone data eraser to permanently wipe all personal information the iPhone before selling your iPhone.No only wipe Personal data permanently,but also supports delete contacts, messages, photos, videos, apps, account info, passwords and other hidden data stored on iPhone, iPad and iPod.

File Types Supported to Erase on ios devices: Contacts, SMS Text Message, Call History, Calendar, Email, Note, Reminder, iTunes DB, App (and generated data), System setting, Apple ID, Photo, Video, Voice memo, Keyboard Cache, Safari Bookmark, Passbook, and more.

More information about this ios data Eraser: iPhone/iPad/iPod Data Eraser is the superb iDevice "eraser" application designed to wipe all personal information permanently from the device using US Military spec over-writing technology to render the data unrecoverable; returning the device to a "clean slate" state before you resell, donate or trade it in.

How to Delete, Erase, Wipe Personal Data Permanently from your iPhone?

Step 1. Launch the iOS Data Eraserand connect your iPhone to the computer

Step 2. Choose Erase all data on device and click on it

 erase all data on your iPhone

Step 3. Start to erase all data on your device now

 

Step 4. Click “Done” and the wiping completed

Tips: The iPhone data eraser tool can help you erase all data including contacts, messages, call history, apps, system setting, photo, video, keyboard cache, safari bookmark.Now you can free download and try to erase everything from your iPhone, iPad and iPod.
If you want to recover iPhone lost data after jailbreak your iPhone or upgrading your iPhone to the lastest OS.