What to do when the remote control doesn't respond? How to check starting from the power supply

The remote control doesn't respond when pressed... I understand that frustration.At night, after finally finishing work and ...

My remote isn't working... Before you change the batteries. How to check with your smartphone camera, and how to properly use rechargeable vs. disposable batteries

Your air conditioner or TV remote suddenly stops responding. When it doesn't work no matter how many times you press the ...