Connect to USB but cannot verify!

Connect the Laser 2s to the laptop, but suddenly cannot pass the verify step. I have tried reinstalling the firmware, changed new cable, and even changed to another laptop. It just cannot connect to the laptop and pass the verify step. I suspect it may be the control board problem because the Bluetooth still works and you can control it through using the iPhone app. Can you mailed a new board? or Can we purchase a new control board?

Try changing the USB cable and using the V5.6.5 software.

I have used the V 5.4.1 and the problem has been solved. Thank you so much!