I have an 85" Samsung TV.  Not sure but think QLED or something like that.  It is about a year or so old and my remote control stopped working.

It is a solar powered remote control and when using my cell phone camera I can not see any lights being transmitted out of it but I do see the red light at the top is staying on all the time.  Even when placed on the USB-C charger.

The remote will not turn on the tv or do anything.  Just red light of death showing 100% of the time and NOT blinking but SOLID.

Any ideas...I've tried all of the reset button options I could fin...first one being to hold the power button for 15s, nothing.  Then holding the BACH button and SELECT button for 15s, nothing.  Then finally holding the BACK button and the PLAY/PAUSE button at the same time...  nothing works.  Except for the red light on the top of the controls.  Argh

Thanks for any help.  I'm turning the TV on by the button on the lower right side of TV then casting to it.  Tks