Chosen Solution

The sync button on the side of my Xbox has came off over the years of having it but it was fine because I could always sync up my controllers with a lead however now for some reason my controller just keeps on flashing showing that it’s not connect with a lead so I’ve come here hoping for a solution or to find out if it’s the end of my console :/ please help it’s urgent!

Try a hard reset. Hold down the power button for like 6 seconds then turn it back on. then plug in ur controller.