About KEHAN ERD402 Firmware ,You can download the bin file in this link: https://yadi.sk/d/DPJtcUmm3Smfae

About ERD402 EDog Data Update ,You can download the bin file in this link: http://en.kehan.com/download

In the download center has the PDF document to help you open Livestream right for YouTube account. Please kindly check in this link: http://www.esongdigital.com/UpLoadFiles/20180203/2018020311082025.pdf