If you have to reset iPad mini to factory settings without passcode, using iTunes is a very simple way. There are two situations. One is that your iPad mini is synchronized with your iTunes. Second situation is that iPad mini is not synchronized with your iTunes. There are two different ways for two different conditions to operate.
The operation of iPad mini is synchronized with your iTunes:
Step 1: Open iTunes and connect your iPad mini to the trusted computer with USB;
Step 2: After your iPad mini is recognized, you need to click the "Summary" button;
Step 3: Completing the first two steps, you should click the "Restore iPad ". After soon, your iPad mini will be restored to factory settings.
The operation of iPad mini is not synchronized with your iTunes. This operation is a bit complex. There are more steps than last operation.
Step 1: Open iTunes and turn off iPad mini. You need to press and hold both the "Home" button and the "Sleep" button for 10 seconds. In addition, if iTunes is not the latest version, you will update it first;
Step 2: Then release the "Sleep" button and continue to hold the "Home" button until "Connect to iTunes" appears on the screen. This means the device enters the recovery mode;
Step 3: Next, you can plug iPad mini to the computer;
Step 4: iTunes will automatically detect that an iPad mini with recovery mode;
Step 5: Click "Restore", your iPad mini will be reset to factory settings without password soon.