I have had the Samsung LED Case working beautifully on my Note 9 for nearly 2 weeks until today when it just stopped working. There has been no physical damage to the case or phone. Additionally, when I look for the settings under accessories, the LED case does not even show up. I did a wipe cache partitioning to no avail. Do not want to do a factory reset without checking first with the forum. I also sent an email to Samsung technical support earlier today. Will hopefully hear from them within 24 to 48 hours. In the meantime, maybe someone here has some suggestions.