AppleiPad Pro 12.9 (1st gen) - iOS 9Device maintenanceHow to do a factory reset
When certain applications no longer function properly or if your iPad Pro is very slow, you can reset the device to its factory settings. This will reset the telephone to the settings it had when you first turned it on.
Please note: your iPad Pro may request a security code, which, if necessary, can be found in the instructions of the iPad Pro. Make sure you have them at hand.
If you purchased a used device and do not know the code, you should ask the previous owner for it.
Please note: resetting the device will erase all data and settings on the device. If necessary, make a backup on your computer.
Select Next for step-by-step instructions to reset the iPad Pro to factory settings.
Go to the Start screen.
Choose Software Update.
If this screen appears, an update is available. To install the software update, follow the on-screen instructions.
If this screen does not appear, the iPad Pro already has the latest software version.