Setup IMEI351262761388991 ROKU8220XIDQXM05M055020 change Roku ID device account
Are you saying you wish to change the Roku account to which this particular unit is linked?
The only way I know if is to do a Factory reset to return the Roku to a new-in-the-box state then set it up from scratch, linking to your desired Roku account, or to a new Roku account created during the process.
Settings > System > Advanced system settings > Factory reset.
IMPORTANT! When linking your device you may be directed to go to roku.com/link. If you are, type this in very carefully and verify that you actually do go there. Otherwise you can end up at a scammer's fake Roku site where they may request you to pay bogus charges and will collect your payment information to use as they wish. If you end up at ANY site not on roku.com (other than the https://my.roku.com/link that you'll get redirected to), back out and try again.
Roku Community Streaming Expert
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Roku Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X | Roku Streaming Stick 3600