First things first, ensure that the Shark IQ Robot is turned off and unplugged to avoid any electric shock. Then, turn it upside down to expose the brushes. You will notice two types of brushes on your Shark IQ Robot: the main brush roll and the side brushes. The main brush roll is usually the one that requires changing. To change the main brush roll, you have to remove the guard first. This can be done by finding the small tabs on both sides of the guard, pressing them, and lifting the guard up. After removing the guard, you’ll see the end caps on each side of the brush roll. Remove these caps by pulling them off, and the brush roll should slide out easily. Replace it with the new brush roll, reattach the end caps, and put the guard back in place. For detailed guide, visit https://dustbusterguide.com/how-to-change-brushes-on-shark-iq-robot/