I was setting up my Roku 4k but when I got to the point where I was asked to enter my email address, the remote control unit stopped functioning! It would not allow me to enter my email address or do anything on that screen or move forward. However , and interestingly enough, it allows me to return to previous windows.
Consequently I'm not able to activate/ set up the system which is so very frustrating.
I've had trouble with entering data on screen a few times myself.
Move the cursor around to highlight the data entry field then press OK on the remote to bring up the onscreen keyboard.
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Streaming Stick 4K+ 3821 | Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X