In order not to let others use our iPhone, iPad or iPod touch, we usually set a password, Touch ID, or Face ID to lock the screen, only we input the correct password so we can access it normal. However, sometimes we set a very complex password...

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iOS devices have always been popular with users for their good performance. But the longer you use it, your iPhone or iPad will still be blocked by unwanted files and applications, which will greatly slow down your device. Or, you want to clean...