I just got the Crystal sky high brightness 7.85. Brightness worked fine yesterday when testing and after charging batteries for first use. I updated the firmware to the latest and now the brightness slide bar does not adjust the brightness. Auto brightness is not selected, it turns off anyways when moving the slidebar. Tried resetting the CS and the results are the same. Anyone else have this problem? Thinking about an RMA and buying another one.

Hi there, please try to reset the CS, if it doesn't help, could you please provide me with a video of this case? Would like to have our engineer to check. Thanks a lot.