Cannot return IPad to factory settings - Apple iPad 2 Wifi 16GB

1. Plug iPad into the computer with the USB cable. The iTunes on your computer will automatically launch. If not, double-click the icon to start it.

2. Click the name of your iPad at the upper right corner of iTunes, and then the information of your iPad will be shown. Click the "Restore iPad" button in the window to start.

3. iTunes will ask whether you want to back up iPad before restoring. You'd better choose "Yes" for the reset will erase the contents in your device. Then iTunes will start restoring your iPad to factory settings.

4. Click Restore again to confirm. Then iTunes erases your iPad and installs the latest iOS software. After you restore your iPad to factory settings, it will restart. Now you can set it up as new.

http://www.leawo.org/tutorial/how-to-restore-iphone-6-plus-to-factory-settings.html

iTunes enables you to restore iPad to factory settings. Before you start restoring iPad to factory settings, please note that you need to install the latest version of iTunes on your computer. Then go to Settings > iCloud to turn off Find My iPhone. Now, you can factory reset your iPad with iTunes as follows.

1. Plug iPad into the computer with the USB cable. The iTunes on your computer will automatically launch. If not, double-click the icon to start it.

2. Click the name of your iPad at the upper right corner of iTunes, and then the information of your iPad will be shown. Click the "Restore iPad" button in the window to start.

3. iTunes will ask whether you want to back up iPad before restoring. You'd better choose "Yes" for the reset will erase the contents in your iPad. Then iTunes will start restoring your iPad to factory settings.

4. Click Restore again to confirm. Then iTunes erases your iPad and installs the latest iOS software. After you restore tablet to factory settings, it will restart. Now you can set it up as new.

How to Restore iPhone 6 Plus to Factory Settings

iTunes enables you to restore iPad to factory settings. Before restoring, please note that you need to install the latest version of iTunes on your PC or MAC. Then go to Settings > iCloud to turn off Find My iPhone. Now, you can factory reset your iPad with iTunes as follows.

1. Plug iPad into the computer with the USB cable. The iTunes on your computer will automatically launch. If not, double-click the icon to start it.
2. Click the name of your iPad at the upper right corner of iTunes, and then the information of your iPad will be shown. Click the "Restore iPhone" button in the window to start.
3. iTunes will ask whether you want to back up iPad before restoring. You'd better choose "Yes" for the reset will erase the contents in your iPad. Then iTunes will start restoring your tablet to factory settings.
4. Click Restore again to confirm. Then iTunes erases your iPad and installs the latest iOS software. After you restore your iPad to factory settings, it will restart. Now you can set it up as new.

http://www.leawo.org/tutorial/how-to-restore-iphone-6-plus-to-factory-settings.html

iTunes enables you to restore iPad to factory settings. Before you start restoring iPad to factory settings, please note that you need to install the latest version of iTunes on your PC or MAC. Then go to Settings > iCloud to turn off Find My iPhone. Now, you can factory reset your iPad with iTunes as follows.

1. Plug iPad into the computer with the USB cable. The iTunes on your computer will automatically launch. If not, double-click the icon to start it.
2. Click the name of your iPad at the upper right corner of iTunes, and then the information of your iPad will be shown. Click the "Restore iPhone" button in the window to start.
3. iTunes will ask whether you want to back up iPad before restoring. You'd better choose "Yes" for the reset will erase the contents in your iPad. Then iTunes will start restoring your iPad to factory settings.
4. Click Restore again to confirm. Then iTunes erases your iPad and installs the latest iOS software. After you restore your iPad to factory settings, it will restart. Now you can set it up as new.

How to Restore iPhone 6 Plus to Factory Settings

iTunes enables you to restore iPad mini to factory settings. Before you start restoring iPad to factory settings, please note that you need to install the latest version of iTunes on your Windows computer or MAC. Then go to Settings > iCloud to turn off Find My iPhone. Now, you can factory reset your iPad with iTunes as follows.

1. Plug iPad into the computer with the USB cable. The iTunes on your computer will automatically launch. If not, double-click the icon to start it.
2. Click the name of your iPad at the upper right corner of iTunes, and then the information of your iPad will be shown. Click the "Restore iPhone" button in the window to start.
3. iTunes will ask whether you want to back up iPad before restoring. You'd better choose "Yes" for the reset will erase the contents in your iPad. Then iTunes will start restoring your tablet to factory settings.
4. Click Restore again to confirm. Then iTunes erases your iPad and installs the latest iOS software. After you restore your device to factory settings, it will restart. Now you can set it up as new.

http://www.leawo.org/tutorial/how-to-restore-iphone-6-plus-to-factory-settings.html

A factory Reset will wipe all the data stored on your iPad...everything will be restored to factory default, which basically means it will be just as you got it out of the box. It can be done by following these steps:

1.)Start by selecting 'settings'
2.)Than select 'general'
when in general scroll down to bottom of the page to 'Reset' and select it.
3.)Than you have the option to do a two things as far as Resetting your iPad.
a.) 'Reset All Settings' - This will preserve all your data but will restore all factory defaults..
b.) 'Erase All Content and Settings'. This will wipe all data and restore to factory defaults.

If you're giving the iPad to someone else or selling it...choose b.

Make a new back-up of your ipad, do a factory reset and then restore from the back-up.

The two most common reasons for resetting an iPad to the factory default settings are to prepare the iPad up for a new owner or to overcome a problem with the iPad that simply rebooting the iPad won't solve.

settings -> general -> reset

you need to connect your iPad to your computer and open iTunes software - there the iPad will show up and you can do a reset.
without a computer you cannot reset an ipad... Use iTunes to restore your iOS device to factory settings

The only way to unlock your iPad with a lock password, other than entering the passcode, is to restore your iPad to the original factory settings. However, all data on your iPad will be erased if you perform the factory setting restore. Therefore, you'd better back up your iPad data first when you plan to do it.

If you mean an iPad by "a pad tablet", then completely clearing it is very simple:

1. Open up Preferences
2. Select 'General'
3. Select 'Reset'
4. Tap 'Erase all content and Settings

This will completely wipe the iPad, returning it to it's factory state.
Hope that helps!