remote won't work

[Dave1020]

tv will not respond to commands from remote (volume, channel change etc); tried changing batteries and trying and retrying the settings buttons; unable to pull up menu. the white circle light on the tv responds when the remote is pushed, but nothing happens;

it's worked perfectly fine until now. help anyone???

[Toengel]

Hi,

- what TV do you have?
- check support website for the latest firmware
- pull power cord for 2-3 minutes

Toengel@Alex