F your Roomba blue light is blinking, it usually indicates the robot is trying to connect to WiFi, syncing data, or updating firmware. However, continuous blinking might signal a connection problem or an error. To fix this, restart your Roomba by holding the CLEAN button, check your WiFi network (make sure it's 2.4GHz), and ensure the robot is near the router. Updating the iRobot app ... https://roombasmarti.com/common-issues-with-roomba-blue-light-and-how-to-fix-them/