The tool you need is the iOS Data Eraser, which is the best assistant when you want to resell or donate your iPhone. It is fully capable of deleting iPhone system options, settings, apps, text messages, contacts, photos, videos, emails, account info, passwords, etc. The deletion is 100% permanent that nothing can be detected or recovered from your iPhone iPad after erasing by this tool. Therefore, we kindly suggest you back up your important iPhone iPad data before you perform the deletion.
Erase Everything on iPhone iPad - Unlike clicking "Erase All content and Settings", using this iOS erasing application is not just a simple deletion. It has the ability to clean files off iPhone iPad permanently. Furthermore, it supports erasing many file types, such as video, photo, voice memo, text messages, call logs, contacts, email, reminder, note, calendar, apps, Apple ID account, account information, password, system setting, safari bookmark, and many others.
The program perfectly compatible with iOS 8, iOS 9, iPhone 7, iPhone 6S, iPhone 6 Plus, iPhone 6, iPhone 5S, iPhone 5, iPhone 4S, iPhone 4, as well as iPad and iPod touch. Meets Mil-spec DOD 5220 - 22 M standard for permanent data destruction; prevents personal data from being recoverable.
Attention: Before wiping your device, you'd better backup data from iPhone iPad to PC, so that you can get your erased data back from backups once you need.
Free download the iOS data eraser tool,and wipe everything on iPhone iPad.
Tutorial: How to Erase System Options on iPhone iPad
Step 1. Download iPhone Data Eraser on your computer
Step 2. Connect your iPhone to computer
After connecting your iPhone to computer with a USB cable, your iPhone will be detected by iPhone Data Eraser automatically.
Step 3. Choose "Erase All Data on Device" in the window of program
Step 4. Select an erased level and start to earse all data on your device now
Note: 3 Wiping Level Embedded here for Different Need
Low: Write a series of zero bytes to override the existing hard disk, like a disk reformatting on computer. This is is the fastest way to wipe the entire device.
Medium: Write two pieces of random data followed by a single piece of known data to the iDevice. A much more secure option than the Low model. All of the existing data will be overwritten by a serial of random data, making the formatting pattern more unrecoverable.
High: Use a mixed set of sophisticated commands to overlap the existing data by repeating the same process in 3 times. This is by far the most secure data wiping method, however, the most time consuming at the same time.
Step 5. Use your device as a new one
When you did what the above tutorial tells, then your iPhone iPad will be a new one. Previous data will 100% wiped out and there is no single method to get it back, even for FBI agents. The program adopts the most sophisticated algorithms to make sure all the data being deleted totally and no footprint is left, which means the data is not recoverable at all. Your privacy data is well protected and you don’t need to worry about it anymore! If you intend to sell or give your iPhone iPad to another user, it's prudent to erase all its content and settings, returning it to its factory default. This can also be a useful procedure to test the iPad when troubleshooting.
Related Tutorial: How to Erase All iPhone Data on Mac