First of all, please make sure that the cable you are using is working properly. Don't hesitate to make a second attempt using a different cable, prompting the USB icon to appear continuously.
If the problem persists, please contact us. Explain the issue you are encountering and let us know if the USB icon appears continuously or not when the device is plugged into your computer. Make sure you attach all the files contained in the "error reports" folder to your message (click here to obtain more information on the location of this folder).
Your information and these files will enable us to rapidly understand the cause of the problem, and provide you with solutions as quickly as possible.