If your TV is operating in non-connected mode, you can still get updates by using a 
USB flash drive. 
You can download an updated User Guide that matches your TCL Roku TV software 
version from the Roku web site at:  
www.roku.com/support 
To determine your current TCL Roku TV software version, go to Settings > System > 
About, and then press OK or navigate to the right. 
Checking for updates on a connected TV 
If you’re one of those people who has to have the latest, most up-to-date features the 
moment they are available, you can check for updates as often as you want. 
To check for updates, navigate to Settings > System > System update, and then select 
Check now. The TV responds either with a message saying that your TV is up to date, 
or with a message saying that an update is available.  
Follow the instructions on the screen to install the system update. 
Note: 
Sometimes system updates install new system software, and other times they 
install new features for streaming channels. Therefore, you won’t always see a change 
in the behavior of your TV after a system update.