Can you describe more about when this happens?
Sometimes this happens when you test the quad without props. You put the throttle up a little to test the motors, then it will try to level itself. However, with no props, it cant level itself so the motors slowly spin faster and faster to compensate.
IF that is what you are seeing, this is expected behavior and it should fly ok with props.
If not, please describe your problems in more detail so we can try to help.
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