Method 1: not jailbroken
1. We start your computer and connect your ipad to your computer using the data cable, as shown in the figure below.
2. Then, iTunes will be automatically opened. If you have not installed the itunes software, you can download and install it from Apple official website.
3. Click "restore" in your ipad version. Restore to the original settings. As shown in the following figure:
4. After returning to the original settings, you can reset the password.
Method 2: Jailbreak
1. First, open iTools and find file system in the left-side menu bar]
2. Select the jailbreak system on the right, as shown in the following figure.
3. In the keychains folder, we will see the keychain-2.db file. To avoid exceptions, we first export it to the desktop. Select a file and click export at the top to save it to the desktop.
After the backup, we can delete the keychains.
4. Now we will shut down, restart, and enable it, and you will find that it is closed.
Tips,
1. After the factory settings are restored without jailbreak, we have no data in the ipad. Therefore, you must be prepared to use this method.
2. It is very convenient to use the itool tool, but you must install itunes to use the itool tool.