I had the same issue, no blinking red light upon pushing and holding “pair”, solid red light. Found this thread and was submitting a request to Marshall for repair. I decided to try once more for the tenth time. Pushed pair and held it, no blinking red light, tilted it forward to read the serial number off the back of the device, decided to pull the power plug and flip it upside down and plug it back in while ON/OFF switch was in ON position. Bluetooth light started fast blinking immediately, and paired to my iOS device on the second attempt.