Hello there, I am so sorry to hear about the recent concerns regarding art mode and have located some information that can be very resourceful with this matter.
We recommend manually installing the S/W version 1403.6 released on Samsung.com, and you can use this link to proceed with that aspect- https://www.samsung.com/us/support/downloads/
I have additional troubleshooting steps here for assistance ensuring the update is successful to resolve this matter:
Step 1. Cold boot the TV by unplugging and plugging back in the power cable.
Step 2. Turn the TV on and verify the TV is still in/ going into Art Mode. Wait for about 5 to 10 minutes for the new version of the Art app to be downloaded in the background.
*The download status is not visible – it will happen in the background. The app update would also depend on your download network speed – usually 5-10 min are enough. If the network is unstable, you can wait a bit longer (up to 1 hour).
Step 3. After 10 minutes, cold boot the TV again by disconnecting and connecting the power cable. This will allow the new Art app version to be installed.
Step 4. Verify if the issue has been resolved, and you are able to exit Art mode.
We encourage you to contact us directly using any contact method listed below if any further assistance is needed:
