... I have done the hard reset by unplugging the Roku from the wall for a minute...
That only gets you a system restart, similar to Roku menu path Settings > System > System restart > Restart.
If you REALLY want a hard reset back to right-out-of-the-box condition (Roku calls this a Factory reset) the menu path is Settings > System > Advanced system settings > Factory reset, or you can press and hold the reset button on the device (behind a pinhole opening on some models) for at least 30 seconds.
Roku Community Streaming Expert
I am not a Roku employee, only a user like you. Please, no support questions via private message -- post them publicly to the Community where others may benefit as well.
If this post solves your problem please help others find this answer by clicking "Accept as Solution.".
Streaming Stick 4K+ 3821 | Streaming Stick+ 3810 | TCL Roku TV 43S245/C107X