BeatsX : 3 blinking white lights

Hi,

I am having issue with my BeatsX. When I switch it one, it blinks 3 white lights and goes dead again. It is not connecting to my iphone anymore. I tried

1. Reset beatsX by holding Power+Volume Down for 10 seconds

After 5 seconds, red light blinks 5 times than white light blinks 3 times and goes dead

2. Forget the device, Restart IPhone (7 Plus).

3. Read it on Apple forum and tried as well. While charging BeatsX, press power and centre pause button together for 15 seconds. It flashes alternate red and white 5 time and than goes back to charging red. However, when I disconnect charging and tried to switch on, same 3 blinking white light and going dead.

None of above solution is working, so any help on these will be appreciated.

Thanks

Junaid