We have a mac in the shop that when you tunr it on you get the mac chime, then the apple logo, and then a progress bar. The progress bar move about halfway and then the screen goes white. We have tried online recovery, reset NVRAM and SMC, safe mode, and CTRL+R. None of these have gotten us anywhere. Just wanted to reach out and see if anyone had any other ideas. Client is a photographer and has tons of pictures on this mac. Was trying to keep from having to offload the pictures and reinstall.