How to Permanently Deleted iPhone Data Before Selling iPhone

You got a new iPhone, and you hope to sell your old iPhone, but before selling it, you have to permanetnly wipe data off iPhone, like: text messages, contacts, photos, videos.
Warning by CNET: iPhone "Restore" does not delete personal data!

If you restore factory setting for your iPhone,it does’t mean “Erase” all iPhone data permanently,becuase some recovery software can restore them easily,you need to use a third-part eraser tool to wipe iPhone data.

Why we need erase iPhone data permanently?
When you are going to resell your old iOS device, don't leave your personal information vulnerable to identify thieves. However,how to erase all data from iPhone permanently? Next,let’s recommend you a powerful iPhone Data Eraser tool,it can help you erase your data from your iPad/iPhone/iPod touch completely. No need to restore it and nothing recoverable.
There are a few circumstances in which you'll want to erase iPhone data and settings before selling it, restoring the phone to its factory-new condition. These circumstances include when, the phone is being sent for repairs and you don't want your personal data available to prying eyes, It's a drastic step, of course, because deleting all the music, apps, email, and settings from your phone--unless you backed it up, that is-–you won't get it back. Still, in situations like those described above, it can be necessary. But how to wipe data off iPhone? How to erase iPhone text messages, contacts, photos, videos from iPhone 4/4s/5 without restoring? Read this article, you will learn how to erase data on iPhone permanently.

Erase All Content and Settings - If you want to fully delete your iPhone, this is the option to choose. When you tap this, you'll not only erase all of your preferences, you'll also delete all music, movies, apps, and other data from your phone with iPhone erase software, Just try it to wipe text messages from iPhone device.

iPhone Data Eraser - Wipe iPhone Remotely, Delete iPhone Data Before Selling
> Permanently erase content from your iPhone 5S/5C/5/4S/4
> Works with all iOS Devices - Jailbroken iPhone friendly and also compatible with carrier-locked iPhones

I found the hard way that just because you wiped your iPhone's data doesn't mean that everything linking you to the phone has been removed. There are some apps that may still be linked based on your phone's unique hardware ID. I sold an old iPhone to a friend of mine and completely wiped my data using the method above; however, he informed me that my Pandora account was still linked as he was seeing all of the Pandora channels I had created. He said that the same was true for several other apps as well, so to compeletly erase iPhone contacts, text messages or photos, you have to use professional iPhone data erase software.

Currently the iCloud service will backup almost everything that you need to restore your iPhone, but it is possible that some apps may not support backup to the iCloud. Also, some older phones such as the original iPhone and iPhone 3G don't have access to the iCloud service so we'll backup using the iPhone's docking cable. Note: If you have purchased some items on your phone and haven't transferred these purchases to your computer yet, right-click the iPhone and choose "Transfer Purchases" to transfer the purchases prior to backup.
Learn more: http://www.recovery-iphone.com/