Like other posts I'm seeing, I'm having issues with the solar remote for my Samsung QLED 60B TV which is not even 2 years old.  Model code QN60Q60BDFXZA. 

I have done everything found in troubleshooting suggestions both through Samsung support and community posts - turn off TV with remote, turned off TV with control buttons on set, hold down power to reboot, confirmed I can see infrared emitting from remote (as seen through cell phone screen), unplugged, used Back+Play, used Back+Volume Up, checked and version is updated, make sure I'm 2-5 feet and pointing at correct spot, etc.

The remote will turn the TV on and off but will not pair.  I can't get remote to reset either. The light  blinks that it's trying and message displays Not Available.  The TV connects Bluetooth to the Samsung Smart Things app so troubleshooting info confirms that means it's the remote.  I've had 2 replacement remotes with the same issue.