Normally this is caused by either the uneven wall surface or JMGO O1's light engine. There are a few steps to figure out the issue. First, please try moving the machine left and right, up and down on the same wall or on a different wall, and check if the wavy edge stays at the same position.
If the wavy edges disappear by moving JMGO O1, that means you are projecting on a wall with an uneven surface, which is a common cause of the wavy edges of UST projection. Please follow the instructions below to troubleshoot in this case,
1. Pair JMGO O1 with the JMGO App (make sure both your smartphone and JMGO O1 are connected to the same network).
2. Go to "Image Flattening" in the JMGO App.
3. Take a photo of the projection screen, hit the "Use Photo" button, and the screen will correct by itself.
If the issue remains, it could be a please contact us at after-sales@jmgo.com and let us help you figure it out.