I've same issue with Dune real vision 4K so my Dune real vision pro has issue so when I Emergency settings reset procedure I reboot my device After the reboot, the settings screen appears. After selecting the options here, the message Checking for firmware updates finally appears and the device freezes. I'm attaching a picture of the screen where it freezes below. I tried both manual and automatic adjustment options. In all of them, the device freezes on this screen and when I restart it, it remains on a black screen. I tried the last 3 firmwares one by one by following the Emergency firmware recovery procedure to see if it might be a firmware issue, but the result is the same in all of them. How do I solve this problem?