All you have to do is: Log into your account at my.roku.com on your computer or phone. Find the device you want to unlink in the My Account page’s “My linked devices” table.
If you’re having difficulties signing in to your Roku account, contact the email linked with your account and request a password reset.
The only way to log out of your Roku account is to wipe your device completely. If your Roku has a reset button, hold it down for approximately 20 seconds until the power LED begins to flash, then release the button.
On your computer or smartphone, visit my.roku.com. If prompted, sign in. Find the device below My linked devices by scrolling down. Unlink it by selecting Unlink and confirming the option.
If you link a Roku device to your existing Roku account, any content that has been downloaded on the previous Roku device will be available across all of your linked devices. Although it is not necessary, linking all of your devices to a single account ensures that you can access previously purchased material on other connected televisions. You may add or link a new Roku.
