How to get into my iPad I forgot passcode and do not have a computer
How to get my passcode
iPad mini 6 Wi-Fi
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If your iPad has iOS 15.2 or later installed, see: How to reset your iPhone, iPad, or iPod touch when you forgot your passcode - Apple Support
If that option is not available, you will need to use a computer. See: If you forgot your iPad passcode - Apple Support including the following from that support article:
If you don't have a computer and you can't borrow one, you need to go to an Apple Store or Apple Authorized Service Provider for help.