Problem: Roku Voice Remote intermittently loses ability to send infrared Volume, Mute, and Power commands to the TV
I've never experienced this problem with any of my Voice Remotes, but it has been reported that updating to the latest remote firmware version can fix the intermittent IR command problem. This can be done via a Roku "secret menu".
Caveat: So-called "secret menus" are not officially supported by Roku. They may not work with all Roku models, and they may be discontinued at any time.
1) Go to the "secret" Platform Menu. To do this, hit the these buttons in sequence: Home five times, FF, Pause, RW, Pause, FF
2) Go to RF Remote Menu
3) Go to Over The Air (OTA) Update Menu
4) Go to OTA Firmware Update
5) Update the firmware
Solution source: https://community.roku.com/t5/Remotes/Roku-Voice-Remote-TV-Controls-Stop-Working-Potential-Fix/m-p/8...
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