When inputting the serial number, we would suggest making sure to put zeros instead of the letter O. Please note as well that serial numbers usually start with "YH". To know your device's exact serial number, navigate to Settings > System > About.
If still no luck, reply here with the serial number of the affected Roku stick for further assistance.
I am unable to claim the HDMI extender needed in order to connect my Roku to my TV. When i type in the serial number from the back of the stick, it will not allow me to go to the next page. Can you please let me know what information you need in order to fix this? SN: 21317C98391.
@idontneedamanda, use the serial number that shows under "linked devices" when you log in at https://my.roku.com . You'll notice it doesn't match the one on the device. Only Roku knows why they need two different serial numbers. I suggest copying and pasting it into the form.
Roku Community Streaming Expert
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I tried again and now I can click on the continue button, however, I'm getting an error message that my address is invalid and the website tries to change it to something that is definitely not my address.
Have you verified that the email address that you have entered is indeed correct? If you are still unable to resolve the issue, can you please send me a PM (private message) with a screenshot of the issue you are experiencing?