In my experience, Rexing’s customer service has always been super slow. It has always taken me several days to a few weeks to get a response from them via email. When making a phone call, the hold time was always 30 min or more. With regards to the white screen, I’d say it’s a software issue with your camera. Check the firm ware for the latest update. My camera, V1 with review camera, goes black after about 5-10 min of being on. Then once the key is turned off, it powers down within 2-3 minutes but will comeback on and record if the truck is rocked hard enough. Sent from my iPhone using Tapatalk