sometimes it has a mini seizure, sometimes it freezes up and flips upside-down, have changed some things but reformatted and updated it several times and nothing's worked. what do I do?

sometimes it has a mini seizure, sometimes it freezes up and flips upside-down, have changed some things but reformatted and updated it several times and nothing's worked. what do I do?

This sounds like a hardware issue to me.

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